research papers\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296

Crystal structure and analytical profile of 1,2-di­phenyl-2-pyrrolidin-1-yl­ethanone hydro­chloride or `α-D2PV': a synthetic cathinone seized by law enforcement, along with its diluent sugar, myo-inositol

crossmark logo

aCarl A. Olson Memorial Laboratories, Department of Chemistry, Rutgers University, 73 Warren St., Newark, NJ 07102, USA, bOcean County Sheriff's Office, Forensic Science Laboratory, Toms River, NJ 08753, USA, and cMolecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Private Bag 3, 2050 Johannesburg, South Africa
*Correspondence e-mail: roger.lalancette@gmail.com

Edited by E. Reinheimer, Rigaku Americas Corporation, USA (Received 24 September 2023; accepted 15 January 2024; online 22 January 2024)

A confiscated package of street drugs was characterized by the usual mass spectral (MS) and FT–IR analyses. The confiscated powder material was highly crystalline and was found to consist of two very different species, accidentally of sizes convenient for X-ray diffraction. Thus, one each was selected and redundant com­plete sets of data were collected at 100 K using Cu Kα radiation. The selected crystals contained: (a) 1,2-diphenyl-2-(pyrrolidin-1-yl)ethanone hy­dro­chloride hemihydrate or 1-(2-oxo-1,2-di­phenyl­eth­yl)pyrrolidin-1-ium chloride hemihydrate, C18H20NO+·Cl·0.5H2O, (I), a synthetic cathinone called `α-D2PV', and (b) the sugar myo-inositol, C6H12O6, (II), probably the only instance in which the drug and its diluent have been fully characterized from a single confiscated sample. Moreover, the structural details of both are rather attractive showing: (i) inter­esting hydrogen bonding observed in pairwise inter­actions by the drug mol­ecules, mediated by the chloride counter-anions and the waters of crystallization, and (ii) ππ inter­actions in the case of the phenyl rings of the drug which are of two different types, namely, ππ stacking and edge-to-π. Finally, the inositol crystallizes with Z′ = 2 and the resulting diastereoisomers were examined by overlay techniques.

1. Introduction: useful historical notes and commentaries

In 2021, as part of a law enforcement investigation, an off-white crystalline powder was submitted for analysis. This submission contained two com­ponents: α-pyrrolidino-2-phenyl­aceto­phenone (called α-D2PV), which is an N-pyr­roli­dinyl substituent of natural cathinone, and myo-inositol, a common sugar. The sample was initially identified using GC–MS and the structures of both materials were confirmed by single-crystal X-ray diffraction.

α-D2PV, (I)[link], belongs to a class of stimulants, `synthetic cathinones', that are simple modifications of the chemical structure of cathinone. Cathinone is a naturally occurring chemical found in the khat plant (Catha edulis), commonly grown and used in East Africa (Kalix, 1992[Kalix, P. (1992). Pharmacol. Toxicol. 70, 77-86.]). Cathinone and several derivatives have been scheduled by the DEA as controlled substances, leading to the syntheses of new synthetic cathinone com­pounds (often referred to as `bath salts') which were developed to produce similar psychotropic and stimulant effects as `legal highs' (Zawilska & Wojcieszak, 2013[Zawilska, J. B. & Wojcieszak, J. (2013). Forensic Sci. Int. 231, 42-53.]), and to circumvent the `controlled substances' list. In this instance, α-D2PV is obtained by the substitution of a pyrrole ring in place of the amine group and a phenyl group on the α-C atom (Scheme 1).

[Scheme 1]

Very little pharmacological information is available beyond reports on recreational drug-use websites. Due to the fast development of new designer drugs, we find it important to provide analytical data on as many new addictive com­pound(s) as become available to assist in law enforcement and toxicological investigations, which serve as an addition to a growing list of new psychotropic com­pounds; researchers at the University of Silesia have been adding to this list by making recent contributions (Rojkiewicz et al., 2020[Rojkiewicz, M., Kuś, P., Kusz, J., Książek, M. & Sochanik, A. (2020). Forensic Toxicol. 38, 481-489.]; Kuś et al., 2017[Kuś, P., Kusz, J., Książek, M., Pieprzyca, E. & Roikiewicz, M. (2017). Forensic Toxicol. 35, 114-124.], 2019[Kuś, P., Rojkiewicz, M., Kusz, J., Książek, M. & Sochanik, A. (2019). Forensic Toxicol. 37, 456-464.]).

Inositol has an inter­esting history as a natural product because it is produced by many plants, such as citrus, beans, corn, sesame, etc., and from glucose by the human body. Inter­estingly, the substance is not optically active because of the symmetrical hy­droxy­lation of the six aliphatic C atoms of the cyclo­hexane central ring. For an inter­esting description of its history and early crystallographic background, we recommend the papers by Rabinovich & Kraut (1964[Rabinovich, I. N. & Kraut, J. (1964). Acta Cryst. 17, 159-168.]) [Cambridge Structural Database (CSD; Groom et al., 2016[Groom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171-179.]) refcode: MYINOL] and Rebecca et al. (2012[Rebecca, O. P. S., Boyce, A. N. & Somasundram, C. (2012). Molecules, 17, 4583-4594.]) (MYINOL02). Scheme 2 shows myo-inositol, (II)[link].

[Scheme 2]

2. Experimental (methods and materials)

2.1. Sample preparation

The com­pound of inter­est was initially received as part of a law enforcement investigation of suspected controlled dan­gerous substances. A portion of approximately 5 mg was dis­solved in 1 ml of LC–MS grade methanol supplied by Fisher Chemical (Palo Alto, CA, USA) for GC–EI–MS (gas chromatography–electron ionization–mass spectrometry) analysis. A small portion of the sample material was ground and analyzed by ATR–FT–IR (attenuated total reflectance–Fourier transform–infrared spectroscopy) without further sample preparation. A separate portion of the drug material was examined microscopically and two suitable single crystals were selected without further preparation for the X-ray diffraction experiment. Both crystals had distinctly different morphologies: the one that would prove to be the title synthetic cathinone, (I)[link], was a colourless prism; the second, a common illicit drug diluent, the sugar inositol, (II)[link], was a colourless parallelepiped. Additionally, a reference standard of the drug com­pound was purchased from Cayman Chemical (Ann Arbor, Michigan, USA) for com­parison and confirmation.

2.2. Mass spectral analysis of (I)

The mass spectral analysis of (I)[link] were performed using GC–EI–MS on the law-enforcement-seized sample.

A Thermo Scientific Trace 1310 Gas Chromatograph ISQ 7000 Mass Spectrometer [single quadrupole GC–EI–MS, utilizing a Restek Rtx-5MS (5% diphen­yl–95% methyl cross-bonded polysiloxane) 30 m × 0.25 mm ID × 0.25 µm film column (catalogue No. 12623)] was used as part of the general drug analytical scheme of the forensic laboratory. The GC and MS parameters can be found in Table 1[link] and the GC spectrum of α-D2PV, (I)[link], is shown in Fig. 1[link]. The mass spectral fragmentation pattern for α-D2PV, (I)[link], is shown in Fig. 2[link].

Table 1
Mass spectrometry parameters for the analysis of α-D2PV, (I)

Instrumental method for seized drug analysis
Instrument Thermo Scientific TRACE 1310 GC – ISQ-LT  
Injection mode splitless splitless time 1.0 min
GC column Restek RTX-5Sil MS, 30 m × 0.25 mm × 0.25 µm  
Carrier gas He (99.999%) Flow 1.0 ml min−1, constant flow  
Injector temperature: 220 °C  
Temperature program 65 °C, 2 min  
  30 °C min−1 to 150 °C  
  30 °C min−1 to 300 °C  
  10 min hold  
Transfer line temperature 280 °C  
Total analysis time 22.83 min  
TriPlus RSH autosampler Injection volume 1 µl  
ISQ-LT MS ionization mode EI 70 eV  
Ion source temperature 200 °C  
Full scan 45–500 m/z  
[Figure 1]
Figure 1
GC spectrum of α-D2PV, (I)[link]. The main sample peak at 11.03 min represents the synthetic cathinone α-D2PV. The small peaks at 11.20 min represent the thermal degradation of α-D2PV in the GC injection port (see Discussion section).
[Figure 2]
Figure 2
Mass spectral fragmentation of α-D2PV, (I)[link].

Cathinone fragmentation patterns are dominated by α-cleavage at both the amine and the carbonyl groups. The ions produced by the EI fragmentation of α-D2PV are consistent with previously described EI–MS fragmentation of α-pyrrolidino­phenone synthetic cathinones (Zuba, 2012[Zuba, D. (2012). TrAC Trends Anal. Chem. 32, 15-30.]; Matsuta et al., 2014[Matsuta, S., Katagi, M., Nishioka, H., Kamata, H., Sasaki, K., Shima, N., Kamata, T., Miki, A., Tatsuno, M., Zaitsu, K., Tsuboi, K., Tsuchihashi, H. & Suzuki, K. (2014). Jpn J. Forensic. Sci. Tech. 19, 77-89.]; Qian et al., 2017[Qian, Z., Jia, W., Li, T., Hua, Z. & Liu, C. (2017). Drug Test. Anal. 9, 778-787.]; Davidson et al., 2020[Davidson, J. T., Sasiene, S. J., Abiedalla, Y., DeRuiter, J., Clark, C. R. & Jackson, G. P. (2020). Int. J. Mass Spectrom. 453, 116343.]). In the case of α-D2PV, the fragmentation produced the expected base 1-benzyl­idenepyrrolidinium ion at m/z 160 and the benzoyl­ium ion at m/z 105 (Fig. 2[link]). The proposed fragmentation mechanism (Fig. 3[link]) is based on the extensive work of Davidson et al. (2020[Davidson, J. T., Sasiene, S. J., Abiedalla, Y., DeRuiter, J., Clark, C. R. & Jackson, G. P. (2020). Int. J. Mass Spectrom. 453, 116343.]). Subsequent fragmentation of the 1-benzyl­idenepyrrolidinium ion yields a tropylium ion at 91 m/z and the cyclo­penta-1,3-­diene-1-ylium ion at 65 m/z; subsequent fragmentation of the benzoyl­ium produces a phenyl­ium ion at 77 m/z and the cyclo­butadien-4-ylium ion at 51 m/z. Fig. 3[link] shows a proposed fragmentation mechanism of α-D2PV, (I)[link], including the possible ions involved.

[Figure 3]
Figure 3
The proposed major mass spectra fragmentation ions of α-D2PV, (I)[link].

2.3. Direct analysis of the seized drug material (I) by ATR–FT–IR

The IR spectrum (Fig. 4[link]) was obtained with a Nicolet iS50 FT–IR spectrometer (Thermo Scientific), using attenuated total reflectance (ATR), and the spectrum was collected in the wavenumber range 4000–400 cm−1.

[Figure 4]
Figure 4
FT–IR spectrum of α-D2PV, (I)[link].

2.4. X-ray data collection, structure solutions, and refinements of α-D2PV, (I), and inositol, (II)

Crystals of (I)[link] and (II)[link] were secured to a micromount fiber loop using Paratone-N oil. The crystal dimensions, as well as the pertinent crystal information for both com­pounds, are given in Table 2[link]. The SCXRD data for both materials were collected at 100 K on a Rigaku XtaLAB Synergy-S Dual Source diffrac­tometer with a PhotonJet Cu-microfocus source (λ = 1.54178 Å) and a HyPix-6000HE hybrid photon counting (HPC) detector. To ensure com­pleteness and desired redundancy, data collection strategies were calculated using CrysAlis PRO (Rigaku OD, 2022[Rigaku OD (2022). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.]). Subsequent data processing was also performed in CrysAlis PRO. Using the SCALE3 ABSPACK scaling algorithm (Rigaku OD, 2022[Rigaku OD (2022). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.]), empirical and numerical (Gaussian) absorption corrections were applied to the data (faces were determined using face-indexing in CrysAlis PRO). The structures were solved via intrinsic phasing methods using SHELXT in OLEX2 (Dolomanov et al., 2009[Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339-341.]) and refined by full-matrix least-squares techniques against F2 (SHELXL; Sheldrick, 2015a[Sheldrick, G. M. (2015a). Acta Cryst. C71, 3-8.]), first in the OLEX2 (Dolomanov et al., 2009[Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339-341.]) graphical user inter­face, and later using SHELXTL (Sheldrick, 2015b[Sheldrick, G. M. (2015b). Acta Cryst. A71, 3-8.]).

Table 2
Experimental details

Experiments were carried out at 100 K with Cu Kα radiation using a Rigaku XtaLAB Synergy Dualflex diffractometer with a HyPix detector. H atoms were treated by a mixture of independent and constrained refinement.

  (I) (II)
Crystal data
Chemical formula 2C18H20NO+·2Cl·H2O C6H12O6
Mr 621.62 180.16
Crystal system, space group Monoclinic, C2/c Monoclinic, P21/n
a, b, c (Å) 13.8926 (1), 11.9663 (1), 19.3872 (1) 6.61708 (6), 12.0474 (1), 18.88721 (19)
β (°) 100.384 (1) 93.9791 (8)
V3) 3170.20 (4) 1502.04 (2)
Z 4 8
μ (mm−1) 2.15 1.26
Crystal size (mm) 0.27 × 0.20 × 0.11 0.22 × 0.10 × 0.08
 
Data collection
Absorption correction Multi-scan (CrysAlis PRO; Rigaku OD, 2022[Rigaku OD (2022). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.]) Gaussian (CrysAlis PRO; Rigaku OD, 2022[Rigaku OD (2022). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.])
Tmin, Tmax 0.808, 1.000 0.607, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections 58892, 3260, 3089 55215, 3168, 2697
Rint 0.043 0.064
(sin θ/λ)max−1) 0.630 0.631
 
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.031, 0.082, 1.09 0.038, 0.110, 1.06
No. of reflections 3260 3168
No. of parameters 203 253
Δρmax, Δρmin (e Å−3) 0.26, −0.21 0.25, −0.26
Computer programs: CrysAlis PRO (Rigaku OD, 2022[Rigaku OD (2022). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.]), SHELXT2018 (Sheldrick, 2015a[Sheldrick, G. M. (2015a). Acta Cryst. C71, 3-8.]), SHELXL2018 (Sheldrick, 2015b[Sheldrick, G. M. (2015b). Acta Cryst. A71, 3-8.]), Mercury (Macrae et al., 2020[Macrae, C. F., Sovago, I., Cottrell, S. J., Galek, P. T. A., McCabe, P., Pidcock, E., Platings, M., Shields, G. P., Stevens, J. S., Towler, M. & Wood, P. A. (2020). J. Appl. Cryst. 53, 226-235.]) and DIAMOND (Putz & Brandenburg, 2019[Putz, H. & Brandenburg, K. (2019). DIAMOND. Crystal Impact GbR, Bonn, Germany.]).

All H atoms were placed either according to their electron-density Q-peaks or were attached via the riding model in idealized positions. Data for both (I)[link] and (II)[link] are given in Table 2[link]. Mol­ecular overlay diagrams were generated using Mercury (Macrae et al., 2020[Macrae, C. F., Sovago, I., Cottrell, S. J., Galek, P. T. A., McCabe, P., Pidcock, E., Platings, M., Shields, G. P., Stevens, J. S., Towler, M. & Wood, P. A. (2020). J. Appl. Cryst. 53, 226-235.]) and DIAMOND (Putz & Brandenburg, 2019[Putz, H. & Brandenburg, K. (2019). DIAMOND. Crystal Impact GbR, Bonn, Germany.]).

3. Description of the structures

The seized crystals contain two species (easily isolated under the microscope): a colourless prism was the synthetic cathinone (I)[link] and a colourless parallelepiped was myo-inositol (II)[link]. Fig. 5[link] shows the cationic amine, the chloride counter-anion, and the water of crystallization all held together by hydrogen bonds. The hydrogen bonds of the chloride anions to the protons of the ammonium N atom are important for the packing, as illustrated in Figs. 6[link] and 7[link]. A mol­ecular diagram for (I)[link] is given in the supporting information.

[Figure 5]
Figure 5
The mol­ecular structure of α-D2PV, (I)[link]. The ammonium cations are linked to one another by hydrogen bonds to Cl⋯H2O⋯Cl fragments as displayed above. This view is intended primarily to show the stereochemistry of the cationic drug; however, there are additional bonding inter­actions linking the elements of the lattice tightly (see Figs. 5[link] and 6[link]).
[Figure 6]
Figure 6
There are layers of cathinone cations above and below what is presented. These are not shown to avoid clutter. Generic atoms labels without symmetry codes have been used.
[Figure 7]
Figure 7
This figure intends to show that the lattice is held together by a multitude of hydrogen bonds of the usual N—H⋯O, O—H⋯O, and Cl⋯H types, but that, in addition, there are large numbers of meaningful hydrogen-bond contacts shorter than 2.9 Å that help stabilize the lattice given their size and numbers. Generic atoms labels without symmetry codes have been used.

The overall packing is difficult to display in a single view because of its com­plex three-dimensional character. Fig. 6[link] shows additional features of the packing, which is also deceptive because it gives the impression that the cations are only linked exclusively in pairs by the Cl⋯H2O⋯Cl fragments. That such is not the case is clearly shown below.

Next, Fig. 7[link] shows the hydrogen bonding between the quarternary amine group of the drug, the chloride counter-anion, the water of hydration, and then the chloride of the next mol­ecule.

There are important ππ inter­actions (see Fig. 8[link]) between the phenyl rings of adjacent cations that cannot simultaneously be displayed in the figures described above.

[Figure 8]
Figure 8
A view of the ππ inter­actions between the arene rings of adjacent cations in (I)[link]. Generic atoms labels without symmetry codes have been used.

The ππ inter­actions in this crystal are very substantial; the C—C distances between the rings range from 3.6600 (17) to 3.6985 (17) Å. These belong to the short type as discussed by Janiak (2000[Janiak, C. (2000). J. Chem. Soc. Dalton Trans. pp. 3885-3896.]), whose paper gives a critical account on ππ stacking in metal com­plexes with aromatic nitro­gen-con­tain­ing ligands. The ring centroids here are 3.684 Å apart, and the angle between the normal to the planes of the two phenyl rings is 108.9°.

It is inter­esting to note that there is another inter­action between the aromatic moieties in this structure, namely, that the cations depicted in Fig. 8[link] also contain a face-to-edge contact depicted in Fig. 9[link]. Note that atoms C9 and C10 (H atoms omitted for clarity) inter­act closely with those of C14 [4.3277 (18) Å] and C15 [4.690 (2) Å] (symmetry code: x + [{1\over 2}], y + [{1\over 2}], z). Thus, the entire lattice becomes very tightly bound.

[Figure 9]
Figure 9
Pairs, similar to those in Fig. 7[link], inter­act as shown here. Generic atoms labels without symmetry codes have been used.

3.1. The sugar inositol, (II) – the diluent

The sugar inositol, (II)[link], crystallizes with two mol­ecules in the asymmetric unit (Z′ = 2), depicted in Fig. 10[link]. A mol­ecular diagram for (II)[link] is given in the supporting information.

[Figure 10]
Figure 10
The two mol­ecules of inositol, (II)[link], in the asymmetric unit are shown with the numbering system necessary to describe the overlay diagram shown in Fig. 10[link].

It is clear that the pair are related by a `near inversion' noncrystallographic center located between the O2/O12 and O3/O7 pairs.

It is notable that the heavy-atom skeleton (C and O) matches so exactly that one can hardly discern the fact that there are two independent mol­ecules superimposed on one another here. The most notable differences are in the cases of H4 with H7 and H1 with H10. A list of the O—H⋯O hydrogen-bond distances for (II) is given in Table 3[link]. This superposition diagram (overlay, Fig. 11[link]) was generated by Mercury (Groom et al., 2016[Groom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171-179.]) and DIAMOND (Putz & Brandenburg, 2019[Putz, H. & Brandenburg, K. (2019). DIAMOND. Crystal Impact GbR, Bonn, Germany.]).

Table 3
Hydrogen-bond geometry (Å, °) for (II)[link]

D—H⋯A D—H H⋯A DA D—H⋯A
O1—H1⋯O3i 0.831 (19) 1.85 (2) 2.6771 (14) 175.1 (17)
O2—H2⋯O6ii 0.854 (19) 1.779 (19) 2.6274 (13) 171.4 (17)
O3—H3⋯O12 0.853 (19) 1.885 (19) 2.7229 (14) 167.3 (17)
O4—H4⋯O10iii 0.842 (19) 2.071 (19) 2.8461 (14) 152.9 (16)
O5—H5⋯O1iv 0.859 (19) 1.922 (19) 2.7797 (13) 176.8 (17)
O6—H6⋯O4i 0.852 (19) 1.79 (2) 2.6403 (14) 171.8 (17)
O7—H7⋯O2 0.854 (19) 1.861 (19) 2.6915 (14) 163.8 (16)
O8—H8⋯O1ii 0.869 (19) 1.979 (19) 2.7943 (14) 155.6 (16)
O9—H9⋯O10v 0.850 (19) 1.934 (19) 2.7767 (14) 171.3 (17)
O10—H10⋯O8vi 0.871 (19) 1.865 (19) 2.7228 (14) 167.5 (16)
O11—H11⋯O7vi 0.804 (19) 1.838 (19) 2.6382 (14) 173.8 (18)
O12—H12⋯O11iii 0.829 (19) 1.843 (19) 2.6671 (14) 172.3 (17)
Symmetry codes: (i) [x-1, y, z]; (ii) [-x+{\script{1\over 2}}, y+{\script{1\over 2}}, -z+{\script{1\over 2}}]; (iii) [-x+2, -y+1, -z+1]; (iv) [-x+{\script{1\over 2}}, y-{\script{1\over 2}}, -z+{\script{1\over 2}}]; (v) [-x+2, -y+2, -z+1]; (vi) [x+1, y, z].
[Figure 11]
Figure 11
Overlay diagram of the two mol­ecules of inositol (II)[link].

Inositol is not chiral, which may appear as odd at first, since we are accustomed to the fact that the most common sugars we deal with are so. However, this is a misconception inasmuch as there are many nonchiral sugars, as can be found in standard sources. Myo-inositol is an inter­esting sugar present in the brain, as well as other tissues, where it mediates cell transduction in response to certain hormones and neurotransmitters. It is active in processes such as growth and osmoregulation. Thus, it was of more than passing inter­est in finding it present in a confiscated packet of street drugs where it was obviously being used as a diluent to maximize profits of the dealers. Usually, the diluents are powdered milk or other common materials, not a more sophisticated material such as myo-isositol.

Space group and unit-cell constant determination (see Table 2[link]) revealed that these crystals are monoclinic (space group P21/n) and whose unit-cell constants exactly matched those of CSD refcode MYINOL02 (Rebecca et al., 2012[Rebecca, O. P. S., Boyce, A. N. & Somasundram, C. (2012). Molecules, 17, 4583-4594.]); these two are identical having been determined at 100 K and refined to basically the same R factors. But, a most important issue is that ours is the only documented sample of a street drug diluent obtained from a police seizure, whereas MYINOL02 was obtained from an extract of Asian Dragon Fruit. Thus, the current structure must be characterized in its totality in order to be used as a reference standard for future legal proceedings.

These sugar mol­ecules are linked by a very elaborate set of three-dimensional hydrogen bonds that are illustrated in Fig. 12[link].

[Figure 12]
Figure 12
The intricate hydrogen bonding in (II)[link] is quite powerful. The numerical data are presented in Table 3[link].

4. Discussion

4.1. Gas chromatography

In the GC–EI–MS analysis of the drug com­pound α-D2PV, (I)[link], an additional peak was observed at retention time 11.20 min, 0.17 min after the com­pound of inter­est at 11.03 min. This peak is routinely observed in cathinone samples due to thermal degradation occurring in the injection port. In a study of 18 cathinones, including pyrrolidino examples, Kerrigan et al. (2016[Kerrigan, S., Savage, M., Cavazos, C. & Bella, P. (2016). J. Anal. Toxicol. 40, 1-11.]) described the oxidative degradation causing the loss of two H atoms, yielding the 2 Da mass shift in both the mol­ecular ion and the base peak that was observed in the mass spectrum of the additional peak in this com­pound.

4.2. ππ bonding between the drug mol­ecules

The criterion for meaningful contacts between aromatic fragments labeled `ππ inter­actions' in the report by Janiak (2000[Janiak, C. (2000). J. Chem. Soc. Dalton Trans. pp. 3885-3896.]) suggests that, given the experimental data available (see Figs. 7[link] and 8[link], and relevant commentary therein), the range of 3.3–3.8 Å is very reasonable indeed. Using that as an acceptable gauge, our cationic drug mol­ecules have powerful ππ inter­actions, which play a very obvious role in stabilizing the lattice herein described, being 3.6600 (17)–3.6985 (17) Å for all six carbon pairs.

5. Conclusions

We were fortunate to obtain a confiscated packet of street drugs con­tain­ing both the opiate and its diluent. They were com­pletely characterized by a variety of analytical methods described above, including a full structural determination of both of its crystalline contents since, helpfully, both were present as high-quality X-ray analysis specimens.

Supporting information


Computing details top

1-(2-Oxo-1,2-diphenylethyl)pyrrolidin-1-ium chloride hemihydrate (I) top
Crystal data top
2C18H20NO+·2Cl·H2OF(000) = 1320
Mr = 621.62Dx = 1.302 Mg m3
Monoclinic, C2/cCu Kα radiation, λ = 1.54184 Å
a = 13.8926 (1) ÅCell parameters from 34597 reflections
b = 11.9663 (1) Åθ = 2.4–76.2°
c = 19.3872 (1) ŵ = 2.15 mm1
β = 100.384 (1)°T = 100 K
V = 3170.20 (4) Å3Block, colourless
Z = 40.27 × 0.20 × 0.11 mm
Data collection top
Rigaku XtaLAB Synergy Dualflex
diffractometer with a HyPix detector
3260 independent reflections
Radiation source: micro-focus sealed X-ray tube, PhotonJet (Cu) X-ray Source3089 reflections with I > 2σ(I)
Mirror monochromatorRint = 0.043
Detector resolution: 10.0000 pixels mm-1θmax = 76.4°, θmin = 4.6°
ω scansh = 1717
Absorption correction: multi-scan
(CrysAlis PRO; Rigaku OD, 2022)
k = 1513
Tmin = 0.808, Tmax = 1.000l = 2424
58892 measured reflections
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: mixed
R[F2 > 2σ(F2)] = 0.031H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.082 w = 1/[σ2(Fo2) + (0.0404P)2 + 2.579P]
where P = (Fo2 + 2Fc2)/3
S = 1.09(Δ/σ)max = 0.001
3260 reflectionsΔρmax = 0.26 e Å3
203 parametersΔρmin = 0.21 e Å3
0 restraintsExtinction correction: SHELXL2018 (Sheldrick, 2015b), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.00024 (6)
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cl10.85892 (2)0.59544 (2)0.84559 (2)0.02213 (11)
O10.62288 (6)0.54176 (7)0.73746 (4)0.01954 (19)
H20.9693 (15)0.6684 (17)0.7734 (11)0.052 (6)*
O21.0000000.71002 (12)0.7500000.0290 (3)
N10.75989 (7)0.38437 (8)0.77530 (5)0.0150 (2)
H10.7791 (10)0.4572 (13)0.7887 (7)0.018*
C10.61800 (8)0.46482 (10)0.69588 (6)0.0158 (2)
C130.53531 (8)0.45329 (10)0.63570 (6)0.0164 (2)
C140.52414 (8)0.35914 (10)0.59224 (6)0.0185 (2)
H140.5687660.2985400.6015110.022*
C180.46739 (8)0.54063 (10)0.62281 (6)0.0189 (2)
H180.4734040.6034590.6532440.023*
C20.70309 (8)0.38153 (10)0.70197 (6)0.0158 (2)
H2A0.6764720.3045970.6911950.019*
C30.76767 (8)0.41346 (10)0.64936 (6)0.0167 (2)
C80.81240 (8)0.51820 (10)0.65267 (6)0.0197 (3)
H80.8028150.5700120.6879380.024*
C90.70427 (8)0.33798 (10)0.82891 (6)0.0178 (2)
H9A0.6715820.2667500.8126970.021*
H9B0.6545670.3918090.8391170.021*
C150.44702 (9)0.35479 (11)0.53519 (6)0.0215 (3)
H150.4391000.2908870.5056230.026*
C170.39132 (9)0.53562 (11)0.56568 (7)0.0220 (3)
H170.3456470.5952770.5567800.026*
C40.78245 (9)0.33741 (11)0.59798 (6)0.0208 (3)
H40.7535300.2652990.5963500.025*
C120.85259 (9)0.31618 (11)0.78464 (6)0.0205 (3)
H12A0.9067080.3600340.7711370.025*
H12B0.8428470.2475380.7557200.025*
C100.78393 (9)0.31988 (11)0.89286 (6)0.0208 (3)
H10A0.7654340.2595200.9228710.025*
H10B0.7959220.3891880.9209880.025*
C70.87104 (9)0.54671 (11)0.60429 (7)0.0236 (3)
H70.9025640.6174370.6070800.028*
C160.38193 (9)0.44313 (11)0.52141 (6)0.0225 (3)
H160.3307720.4405940.4816530.027*
C110.87493 (9)0.28705 (12)0.86281 (7)0.0253 (3)
H11A0.9328940.3290290.8866460.030*
H11B0.8882210.2060990.8693410.030*
C50.83978 (9)0.36738 (12)0.54895 (7)0.0253 (3)
H50.8489520.3160080.5133410.030*
C60.88350 (9)0.47171 (12)0.55186 (7)0.0256 (3)
H60.9220170.4920200.5180160.031*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cl10.02250 (17)0.01798 (17)0.02504 (17)0.00297 (10)0.00195 (11)0.00324 (10)
O10.0199 (4)0.0185 (4)0.0195 (4)0.0012 (3)0.0016 (3)0.0024 (3)
O20.0273 (7)0.0279 (7)0.0324 (7)0.0000.0067 (6)0.000
N10.0143 (5)0.0146 (5)0.0156 (5)0.0003 (4)0.0012 (4)0.0004 (4)
C10.0158 (5)0.0162 (6)0.0160 (5)0.0011 (4)0.0041 (4)0.0023 (4)
C130.0144 (5)0.0193 (6)0.0157 (5)0.0018 (4)0.0033 (4)0.0025 (4)
C140.0167 (5)0.0210 (6)0.0178 (6)0.0001 (4)0.0028 (4)0.0007 (4)
C180.0175 (5)0.0190 (6)0.0206 (6)0.0009 (4)0.0048 (4)0.0028 (4)
C20.0157 (5)0.0161 (5)0.0147 (5)0.0008 (4)0.0005 (4)0.0011 (4)
C30.0134 (5)0.0202 (6)0.0155 (5)0.0011 (4)0.0001 (4)0.0015 (4)
C80.0179 (5)0.0212 (6)0.0195 (6)0.0002 (4)0.0018 (4)0.0008 (5)
C90.0178 (5)0.0187 (6)0.0173 (5)0.0000 (4)0.0041 (4)0.0021 (4)
C150.0203 (6)0.0274 (7)0.0163 (6)0.0037 (5)0.0025 (4)0.0014 (5)
C170.0169 (6)0.0243 (6)0.0241 (6)0.0004 (5)0.0020 (5)0.0076 (5)
C40.0182 (6)0.0235 (6)0.0199 (6)0.0003 (5)0.0017 (4)0.0028 (5)
C120.0170 (5)0.0230 (6)0.0210 (6)0.0066 (5)0.0024 (4)0.0018 (5)
C100.0213 (6)0.0227 (6)0.0174 (6)0.0014 (5)0.0010 (5)0.0023 (5)
C70.0183 (6)0.0269 (7)0.0248 (6)0.0024 (5)0.0020 (5)0.0051 (5)
C160.0169 (6)0.0317 (7)0.0177 (6)0.0031 (5)0.0000 (4)0.0054 (5)
C110.0223 (6)0.0324 (7)0.0199 (6)0.0085 (5)0.0004 (5)0.0021 (5)
C50.0206 (6)0.0353 (7)0.0204 (6)0.0033 (5)0.0043 (5)0.0046 (5)
C60.0153 (6)0.0402 (8)0.0219 (6)0.0007 (5)0.0047 (5)0.0057 (5)
Geometric parameters (Å, º) top
O1—C11.2176 (14)C9—H9B0.9900
O2—H20.84 (2)C15—C161.3855 (18)
N1—C21.4968 (14)C15—H150.9500
N1—C121.5076 (14)C17—C161.3922 (19)
N1—C91.5082 (15)C17—H170.9500
N1—H10.934 (16)C4—C51.3925 (18)
C1—C131.4890 (15)C4—H40.9500
C1—C21.5344 (16)C12—C111.5313 (16)
C13—C141.3986 (17)C12—H12A0.9900
C13—C181.4000 (17)C12—H12B0.9900
C14—C151.3953 (16)C10—C111.5354 (17)
C14—H140.9500C10—H10A0.9900
C18—C171.3877 (17)C10—H10B0.9900
C18—H180.9500C7—C61.3899 (19)
C2—C31.5236 (16)C7—H70.9500
C2—H2A1.0000C16—H160.9500
C3—C41.3916 (17)C11—H11A0.9900
C3—C81.3952 (17)C11—H11B0.9900
C8—C71.3912 (18)C5—C61.385 (2)
C8—H80.9500C5—H50.9500
C9—C101.5214 (16)C6—H60.9500
C9—H9A0.9900
H2—O2—H2i107 (3)C16—C15—H15119.8
C2—N1—C12113.24 (9)C14—C15—H15119.8
C2—N1—C9113.46 (9)C18—C17—C16119.98 (11)
C12—N1—C9104.52 (9)C18—C17—H17120.0
C2—N1—H1111.1 (9)C16—C17—H17120.0
C12—N1—H1106.1 (9)C3—C4—C5119.77 (12)
C9—N1—H1108.0 (9)C3—C4—H4120.1
O1—C1—C13122.13 (10)C5—C4—H4120.1
O1—C1—C2119.35 (10)N1—C12—C11104.98 (9)
C13—C1—C2118.36 (10)N1—C12—H12A110.8
C14—C13—C18119.72 (11)C11—C12—H12A110.8
C14—C13—C1122.20 (10)N1—C12—H12B110.8
C18—C13—C1118.07 (10)C11—C12—H12B110.8
C15—C14—C13119.58 (11)H12A—C12—H12B108.8
C15—C14—H14120.2C9—C10—C11104.77 (10)
C13—C14—H14120.2C9—C10—H10A110.8
C17—C18—C13120.13 (11)C11—C10—H10A110.8
C17—C18—H18119.9C9—C10—H10B110.8
C13—C18—H18119.9C11—C10—H10B110.8
N1—C2—C3110.91 (9)H10A—C10—H10B108.9
N1—C2—C1108.99 (9)C6—C7—C8120.00 (12)
C3—C2—C1108.90 (9)C6—C7—H7120.0
N1—C2—H2A109.3C8—C7—H7120.0
C3—C2—H2A109.3C15—C16—C17120.15 (11)
C1—C2—H2A109.3C15—C16—H16119.9
C4—C3—C8119.89 (11)C17—C16—H16119.9
C4—C3—C2119.73 (11)C12—C11—C10106.47 (10)
C8—C3—C2120.38 (10)C12—C11—H11A110.4
C7—C8—C3119.96 (12)C10—C11—H11A110.4
C7—C8—H8120.0C12—C11—H11B110.4
C3—C8—H8120.0C10—C11—H11B110.4
N1—C9—C10103.07 (9)H11A—C11—H11B108.6
N1—C9—H9A111.1C6—C5—C4120.32 (12)
C10—C9—H9A111.1C6—C5—H5119.8
N1—C9—H9B111.1C4—C5—H5119.8
C10—C9—H9B111.1C5—C6—C7120.02 (12)
H9A—C9—H9B109.1C5—C6—H6120.0
C16—C15—C14120.37 (12)C7—C6—H6120.0
Symmetry code: (i) x+2, y, z+3/2.
Cyclohexane-1,2,3,4,5,6-hexol (II) top
Crystal data top
C6H12O6F(000) = 768
Mr = 180.16Dx = 1.593 Mg m3
Monoclinic, P21/nCu Kα radiation, λ = 1.54184 Å
a = 6.61708 (6) ÅCell parameters from 18595 reflections
b = 12.0474 (1) Åθ = 4.3–75.8°
c = 18.88721 (19) ŵ = 1.26 mm1
β = 93.9791 (8)°T = 100 K
V = 1502.04 (2) Å3Block, colourless
Z = 80.22 × 0.10 × 0.08 mm
Data collection top
Rigaku XtaLAB Synergy Dualflex
diffractometer with a HyPix detector
3168 independent reflections
Radiation source: micro-focus sealed X-ray tube, PhotonJet (Cu) X-ray Source2697 reflections with I > 2σ(I)
Mirror monochromatorRint = 0.064
Detector resolution: 10.0000 pixels mm-1θmax = 76.6°, θmin = 4.4°
ω scansh = 88
Absorption correction: gaussian
(CrysAlis PRO; Rigaku OD, 2022)
k = 1515
Tmin = 0.607, Tmax = 1.000l = 2223
55215 measured reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.038Hydrogen site location: mixed
wR(F2) = 0.110H atoms treated by a mixture of independent and constrained refinement
S = 1.06 w = 1/[σ2(Fo2) + (0.0631P)2 + 0.4998P]
where P = (Fo2 + 2Fc2)/3
3168 reflections(Δ/σ)max = 0.001
253 parametersΔρmax = 0.25 e Å3
0 restraintsΔρmin = 0.26 e Å3
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
O10.11427 (14)0.46739 (7)0.18240 (5)0.0163 (2)
H10.027 (3)0.4688 (14)0.2123 (10)0.024*
O20.40720 (14)0.54673 (8)0.29007 (5)0.0174 (2)
H20.402 (3)0.6148 (16)0.2766 (9)0.026*
O30.82029 (13)0.47716 (8)0.27270 (5)0.0186 (2)
H30.819 (3)0.5031 (15)0.3150 (10)0.028*
O40.77536 (14)0.26420 (8)0.33342 (6)0.0204 (2)
H40.758 (3)0.2262 (16)0.3705 (11)0.031*
O50.37467 (14)0.19105 (8)0.35327 (5)0.0183 (2)
H50.373 (3)0.1217 (16)0.3416 (9)0.027*
O60.06988 (14)0.25670 (7)0.24611 (5)0.0171 (2)
H60.017 (3)0.2580 (14)0.2777 (10)0.026*
O70.47056 (14)0.62339 (8)0.42360 (5)0.0205 (2)
H70.467 (3)0.5889 (15)0.3835 (11)0.031*
O80.43084 (13)0.85586 (8)0.44744 (5)0.0189 (2)
H80.456 (3)0.8901 (15)0.4081 (10)0.028*
O90.84024 (14)0.91291 (8)0.42270 (5)0.0179 (2)
H90.853 (3)0.9826 (16)0.4297 (9)0.027*
O101.13739 (14)0.86367 (8)0.54149 (5)0.0166 (2)
H101.217 (3)0.8632 (14)0.5065 (10)0.025*
O111.17267 (14)0.63788 (8)0.50901 (5)0.0175 (2)
H111.262 (3)0.6286 (15)0.4821 (10)0.026*
O120.87101 (14)0.54174 (8)0.41094 (5)0.0190 (2)
H120.868 (3)0.4839 (16)0.4355 (10)0.028*
C10.28571 (18)0.40294 (10)0.20898 (7)0.0150 (3)
H1A0.3289860.3552600.1694160.018*
C20.46231 (18)0.47881 (10)0.23262 (7)0.0151 (3)
H2A0.4951970.5273220.1920230.018*
C30.64783 (18)0.40865 (11)0.25571 (7)0.0154 (3)
H3A0.6792620.3613250.2143860.019*
C40.60065 (19)0.33100 (11)0.31613 (7)0.0158 (3)
H4A0.5691400.3758910.3585150.019*
C50.41948 (19)0.25727 (10)0.29380 (7)0.0153 (3)
H5A0.4552790.2078150.2540320.018*
C60.23458 (18)0.32732 (10)0.26970 (7)0.0147 (3)
H6A0.1939580.3735360.3103370.018*
C70.64429 (18)0.69433 (11)0.42761 (7)0.0164 (3)
H7A0.6708330.7215320.3791010.020*
C80.60081 (18)0.79250 (11)0.47526 (7)0.0158 (3)
H8A0.5663860.7619100.5221540.019*
C90.78791 (19)0.86631 (11)0.48851 (7)0.0153 (3)
H9A0.7561300.9276200.5216500.018*
C100.96203 (18)0.79679 (10)0.52230 (7)0.0148 (3)
H10A0.9152850.7638150.5669280.018*
C111.01346 (18)0.70155 (10)0.47399 (7)0.0152 (3)
H11A1.0591790.7317010.4284290.018*
C120.82661 (19)0.62850 (10)0.45875 (7)0.0156 (3)
H12A0.7902330.5942060.5043790.019*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0104 (4)0.0191 (5)0.0192 (5)0.0022 (3)0.0002 (4)0.0018 (4)
O20.0175 (5)0.0156 (5)0.0192 (5)0.0006 (4)0.0016 (4)0.0022 (4)
O30.0107 (4)0.0251 (5)0.0200 (5)0.0038 (4)0.0000 (4)0.0018 (4)
O40.0113 (5)0.0279 (5)0.0218 (5)0.0042 (4)0.0005 (4)0.0073 (4)
O50.0210 (5)0.0163 (5)0.0177 (5)0.0002 (4)0.0023 (4)0.0017 (4)
O60.0113 (4)0.0177 (5)0.0223 (5)0.0032 (3)0.0008 (4)0.0020 (4)
O70.0131 (5)0.0274 (5)0.0210 (5)0.0065 (4)0.0016 (4)0.0065 (4)
O80.0111 (4)0.0257 (5)0.0197 (5)0.0037 (4)0.0001 (4)0.0042 (4)
O90.0186 (5)0.0166 (5)0.0185 (5)0.0002 (4)0.0018 (4)0.0020 (4)
O100.0112 (4)0.0183 (5)0.0201 (5)0.0024 (3)0.0002 (4)0.0018 (4)
O110.0114 (4)0.0196 (5)0.0214 (5)0.0033 (3)0.0009 (4)0.0016 (4)
O120.0204 (5)0.0159 (5)0.0207 (5)0.0006 (4)0.0013 (4)0.0022 (4)
C10.0108 (6)0.0160 (6)0.0181 (7)0.0025 (5)0.0008 (5)0.0000 (5)
C20.0127 (6)0.0158 (6)0.0168 (7)0.0006 (5)0.0009 (5)0.0002 (5)
C30.0104 (6)0.0181 (6)0.0177 (7)0.0017 (5)0.0001 (5)0.0004 (5)
C40.0100 (6)0.0193 (6)0.0180 (7)0.0023 (5)0.0003 (5)0.0008 (5)
C50.0128 (6)0.0160 (6)0.0170 (7)0.0005 (5)0.0010 (5)0.0008 (5)
C60.0103 (6)0.0145 (6)0.0191 (7)0.0018 (5)0.0002 (5)0.0015 (5)
C70.0112 (6)0.0193 (6)0.0186 (7)0.0037 (5)0.0008 (5)0.0003 (5)
C80.0106 (6)0.0192 (6)0.0172 (6)0.0023 (5)0.0013 (5)0.0015 (5)
C90.0133 (6)0.0166 (6)0.0160 (6)0.0015 (5)0.0009 (5)0.0003 (5)
C100.0099 (6)0.0162 (6)0.0181 (6)0.0024 (5)0.0007 (5)0.0003 (5)
C110.0116 (6)0.0160 (6)0.0178 (6)0.0014 (5)0.0003 (5)0.0014 (5)
C120.0143 (6)0.0154 (6)0.0173 (7)0.0014 (5)0.0019 (5)0.0018 (5)
Geometric parameters (Å, º) top
O1—C11.4363 (14)C1—C61.5210 (18)
O1—H10.835 (19)C1—C21.5258 (16)
O2—C21.4264 (16)C1—H1A1.0000
O2—H20.859 (19)C2—C31.5289 (16)
O3—C31.4268 (15)C2—H2A1.0000
O3—H30.86 (2)C3—C41.5245 (18)
O4—C41.4277 (15)C3—H3A1.0000
O4—H40.85 (2)C4—C51.5277 (17)
O5—C51.4254 (16)C4—H4A1.0000
O5—H50.864 (19)C5—C61.5294 (16)
O6—C61.4292 (14)C5—H5A1.0000
O6—H60.86 (2)C6—H6A1.0000
O7—C71.4303 (15)C7—C81.5256 (18)
O7—H70.86 (2)C7—C121.5270 (17)
O8—C81.4289 (15)C7—H7A1.0000
O8—H80.88 (2)C8—C91.5307 (17)
O9—C91.4282 (16)C8—H8A1.0000
O9—H90.853 (19)C9—C101.5279 (17)
O10—C101.4383 (14)C9—H9A1.0000
O10—H100.875 (19)C10—C111.5193 (18)
O11—C111.4280 (14)C10—H10A1.0000
O11—H110.81 (2)C11—C121.5286 (17)
O12—C121.4251 (16)C11—H11A1.0000
O12—H120.838 (19)C12—H12A1.0000
C1—O1—H1109.8 (12)O6—C6—C1109.04 (10)
C2—O2—H2109.3 (12)O6—C6—C5109.95 (10)
C3—O3—H3111.3 (12)C1—C6—C5109.86 (10)
C4—O4—H4109.7 (12)O6—C6—H6A109.3
C5—O5—H5109.8 (12)C1—C6—H6A109.3
C6—O6—H6107.9 (12)C5—C6—H6A109.3
C7—O7—H7107.8 (13)O7—C7—C8108.10 (10)
C8—O8—H8111.9 (12)O7—C7—C12108.70 (10)
C9—O9—H9106.2 (12)C8—C7—C12110.59 (10)
C10—O10—H10109.0 (11)O7—C7—H7A109.8
C11—O11—H11109.2 (13)C8—C7—H7A109.8
C12—O12—H12104.3 (13)C12—C7—H7A109.8
O1—C1—C6112.07 (10)O8—C8—C7111.90 (10)
O1—C1—C2110.41 (10)O8—C8—C9110.90 (10)
C6—C1—C2110.13 (10)C7—C8—C9111.30 (10)
O1—C1—H1A108.0O8—C8—H8A107.5
C6—C1—H1A108.0C7—C8—H8A107.5
C2—C1—H1A108.0C9—C8—H8A107.5
O2—C2—C1109.58 (10)O9—C9—C10110.96 (10)
O2—C2—C3110.05 (10)O9—C9—C8109.17 (10)
C1—C2—C3109.62 (10)C10—C9—C8109.13 (10)
O2—C2—H2A109.2O9—C9—H9A109.2
C1—C2—H2A109.2C10—C9—H9A109.2
C3—C2—H2A109.2C8—C9—H9A109.2
O3—C3—C4112.88 (10)O10—C10—C11111.35 (10)
O3—C3—C2110.98 (10)O10—C10—C9111.72 (10)
C4—C3—C2110.53 (10)C11—C10—C9110.91 (10)
O3—C3—H3A107.4O10—C10—H10A107.5
C4—C3—H3A107.4C11—C10—H10A107.5
C2—C3—H3A107.4C9—C10—H10A107.5
O4—C4—C3108.21 (10)O11—C11—C10108.43 (10)
O4—C4—C5110.05 (10)O11—C11—C12109.82 (10)
C3—C4—C5110.35 (10)C10—C11—C12109.63 (10)
O4—C4—H4A109.4O11—C11—H11A109.6
C3—C4—H4A109.4C10—C11—H11A109.6
C5—C4—H4A109.4C12—C11—H11A109.6
O5—C5—C4108.06 (10)O12—C12—C7109.21 (10)
O5—C5—C6109.72 (10)O12—C12—C11109.99 (10)
C4—C5—C6110.95 (10)C7—C12—C11112.37 (10)
O5—C5—H5A109.4O12—C12—H12A108.4
C4—C5—H5A109.4C7—C12—H12A108.4
C6—C5—H5A109.4C11—C12—H12A108.4
O1—C1—C2—O263.16 (13)O7—C7—C8—O861.16 (14)
C6—C1—C2—O261.12 (13)C12—C7—C8—O8179.95 (10)
O1—C1—C2—C3175.97 (10)O7—C7—C8—C9174.13 (10)
C6—C1—C2—C359.75 (13)C12—C7—C8—C955.24 (14)
O2—C2—C3—O364.11 (13)O8—C8—C9—O961.94 (13)
C1—C2—C3—O3175.30 (10)C7—C8—C9—O963.33 (13)
O2—C2—C3—C461.92 (13)O8—C8—C9—C10176.63 (10)
C1—C2—C3—C458.66 (13)C7—C8—C9—C1058.10 (14)
O3—C3—C4—O457.58 (14)O9—C9—C10—O1064.50 (14)
C2—C3—C4—O4177.45 (10)C8—C9—C10—O10175.16 (10)
O3—C3—C4—C5178.05 (10)O9—C9—C10—C1160.36 (13)
C2—C3—C4—C556.99 (13)C8—C9—C10—C1159.98 (14)
O4—C4—C5—O563.92 (13)O10—C10—C11—O1156.53 (13)
C3—C4—C5—O5176.73 (10)C9—C10—C11—O11178.40 (10)
O4—C4—C5—C6175.75 (10)O10—C10—C11—C12176.42 (10)
C3—C4—C5—C656.40 (14)C9—C10—C11—C1258.51 (13)
O1—C1—C6—O657.06 (13)O7—C7—C12—O1265.07 (13)
C2—C1—C6—O6179.62 (10)C8—C7—C12—O12176.40 (10)
O1—C1—C6—C5177.62 (10)O7—C7—C12—C11172.60 (10)
C2—C1—C6—C559.06 (13)C8—C7—C12—C1154.07 (14)
O5—C5—C6—O663.23 (13)O11—C11—C12—O1263.52 (14)
C4—C5—C6—O6177.43 (10)C10—C11—C12—O12177.45 (10)
O5—C5—C6—C1176.76 (10)O11—C11—C12—C7174.59 (10)
C4—C5—C6—C157.42 (14)C10—C11—C12—C755.56 (14)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O3i0.831 (19)1.85 (2)2.6771 (14)175.1 (17)
O2—H2···O6ii0.854 (19)1.779 (19)2.6274 (13)171.4 (17)
O3—H3···O120.853 (19)1.885 (19)2.7229 (14)167.3 (17)
O4—H4···O10iii0.842 (19)2.071 (19)2.8461 (14)152.9 (16)
O5—H5···O1iv0.859 (19)1.922 (19)2.7797 (13)176.8 (17)
O6—H6···O4i0.852 (19)1.79 (2)2.6403 (14)171.8 (17)
O7—H7···O20.854 (19)1.861 (19)2.6915 (14)163.8 (16)
O8—H8···O1ii0.869 (19)1.979 (19)2.7943 (14)155.6 (16)
O9—H9···O10v0.850 (19)1.934 (19)2.7767 (14)171.3 (17)
O10—H10···O8vi0.871 (19)1.865 (19)2.7228 (14)167.5 (16)
O11—H11···O7vi0.804 (19)1.838 (19)2.6382 (14)173.8 (18)
O12—H12···O11iii0.829 (19)1.843 (19)2.6671 (14)172.3 (17)
C3—H3A···O9vii1.002.663.3766 (16)129
C8—H8A···O5viii1.002.433.2373 (16)138
C10—H10A···O5viii1.002.583.3518 (17)134
Symmetry codes: (i) x1, y, z; (ii) x+1/2, y+1/2, z+1/2; (iii) x+2, y+1, z+1; (iv) x+1/2, y1/2, z+1/2; (v) x+2, y+2, z+1; (vi) x+1, y, z; (vii) x+3/2, y1/2, z+1/2; (viii) x+1, y+1, z+1.
Mass spectrometry parameters for the analysis of α-D2PV (I) top
Instrumental method for seized drug analysis
InstrumentThermo Scientific TRACE 1310 GC - ISQ-LT
Injection modesplitlesssplitless time 1.0 min
GC columnRestek RTX-5Sil MS, 30 m × 0.25 mm × 0.25 µm
Carrier gas He (99.999%)Flow 1.0 ml min-1, constant flow
Injector temperature:220 °C
Temperature program65 °C, 2 min
30 °C min-1 to 150 °C
30 °C min-1 to 300 °C
10 min hold
Transfer line temperature280 °C
Total analysis time22.83 min
TriPlus RSH autosamplerInjection volume 1 µl
ISQ-LT MS ionization mode EI70 eV
Ion source temperature200 °C
Full scan45–500 m/z
 

Acknowledgements

The X-ray diffractometer used in these studies was purchased with support from the NSF and Rutgers University. We thank the Ocean County Sheriff's Department for continued support and initial identification of the com­pound. We thank Mr Robert Rauf for the MS data and analysis. The authors have declared that no com­peting inter­ests exist. Author contributions: Matthew Wood and Robert Rauf did the separations and the MS measurements. Roger Lalancette collected the X-ray data. Ivan Bernal, Roger Lalancette and Matthew Wood wrote the manuscript.

Funding information

Funding for this research was provided by: National Science Foundation (grant No. 2018753).

References

First citationDavidson, J. T., Sasiene, S. J., Abiedalla, Y., DeRuiter, J., Clark, C. R. & Jackson, G. P. (2020). Int. J. Mass Spectrom. 453, 116343.  Web of Science CrossRef Google Scholar
First citationDolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339–341.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationGroom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171–179.  Web of Science CrossRef IUCr Journals Google Scholar
First citationJaniak, C. (2000). J. Chem. Soc. Dalton Trans. pp. 3885–3896.  Web of Science CrossRef Google Scholar
First citationKalix, P. (1992). Pharmacol. Toxicol. 70, 77–86.  CrossRef PubMed CAS Web of Science Google Scholar
First citationKerrigan, S., Savage, M., Cavazos, C. & Bella, P. (2016). J. Anal. Toxicol. 40, 1–11.  CAS PubMed Google Scholar
First citationKuś, P., Kusz, J., Książek, M., Pieprzyca, E. & Roikiewicz, M. (2017). Forensic Toxicol. 35, 114–124.  PubMed Google Scholar
First citationKuś, P., Rojkiewicz, M., Kusz, J., Książek, M. & Sochanik, A. (2019). Forensic Toxicol. 37, 456–464.  Google Scholar
First citationMacrae, C. F., Sovago, I., Cottrell, S. J., Galek, P. T. A., McCabe, P., Pidcock, E., Platings, M., Shields, G. P., Stevens, J. S., Towler, M. & Wood, P. A. (2020). J. Appl. Cryst. 53, 226–235.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationMatsuta, S., Katagi, M., Nishioka, H., Kamata, H., Sasaki, K., Shima, N., Kamata, T., Miki, A., Tatsuno, M., Zaitsu, K., Tsuboi, K., Tsuchihashi, H. & Suzuki, K. (2014). Jpn J. Forensic. Sci. Tech. 19, 77–89.  CrossRef Google Scholar
First citationPutz, H. & Brandenburg, K. (2019). DIAMOND. Crystal Impact GbR, Bonn, Germany.  Google Scholar
First citationQian, Z., Jia, W., Li, T., Hua, Z. & Liu, C. (2017). Drug Test. Anal. 9, 778–787.  Web of Science CrossRef CAS PubMed Google Scholar
First citationRabinovich, I. N. & Kraut, J. (1964). Acta Cryst. 17, 159–168.  CSD CrossRef IUCr Journals Web of Science Google Scholar
First citationRebecca, O. P. S., Boyce, A. N. & Somasundram, C. (2012). Molecules, 17, 4583–4594.  Web of Science CSD CrossRef PubMed Google Scholar
First citationRigaku OD (2022). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.  Google Scholar
First citationRojkiewicz, M., Kuś, P., Kusz, J., Książek, M. & Sochanik, A. (2020). Forensic Toxicol. 38, 481–489.  Web of Science CSD CrossRef CAS Google Scholar
First citationSheldrick, G. M. (2015a). Acta Cryst. C71, 3–8.  Web of Science CrossRef IUCr Journals Google Scholar
First citationSheldrick, G. M. (2015b). Acta Cryst. A71, 3–8.  Web of Science CrossRef IUCr Journals Google Scholar
First citationZawilska, J. B. & Wojcieszak, J. (2013). Forensic Sci. Int. 231, 42–53.  Web of Science CrossRef CAS PubMed Google Scholar
First citationZuba, D. (2012). TrAC Trends Anal. Chem. 32, 15–30.  Web of Science CrossRef CAS Google Scholar

This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Follow Acta Cryst. C
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds