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Synthesis, N-oxide-κO)bis(thiocyanato-κN)cobalt(II), which shows strong pseudosymmetry
and thermal behavior of tetrakis(3-cyanopyridineaInstitut für Anorganische Chemie, Universität Kiel, Germany
*Correspondence e-mail: cnaether@ac.uni-kiel.de
The title compound, [Co(SCN)2(C6H4N2O)4], was prepared by the reaction of cobalt(II)thiocyanate with 3-cyanopyridine N-oxide in ethanol. In the crystal, the cobalt(II) cations are octahedrally coordinated by two terminal N-bonded thiocyanate anions and four O-bonded 3-cyanopyridine N-oxide coligands, forming discrete complexes that are located on centers of inversion, hence forming trans-CoN2O4 octahedra. The structure was performed in the monoclinic P21/n, for which a potential lattice translation and new symmetry elements with a fit of 100% is suggested. The structure can easily be refined in the I2/m, where the complexes have 2/m symmetry. However, nearly all of the reflections that violate the centering are observed with significant intensity and the in P21/n leads to significantly lower R(F) values (0.027 versus 0.033). Moreover, in I2/m much larger components of the anisotropic displacement parameters are observed and therefore, the is presented in the primitive IR investigations confirm that the anionic ligands are only terminally bonded and that the cyano group is not involved in the metal coordination. PXRD investigations show that a pure crystalline phase has been obtained and measurements using simultaneously thermogravimetry and differential thermoanalysis reveal that the compound decomposes in an upon heating, without the formation of a coligand-deficient intermediate phase.
Keywords: synthesis; coordination compound; cobalt thiocyanate; 3-cyanopyridine N-oxide; crystal structure; pseudosymmetry; thermal properties.
CCDC reference: 2286746
1. Chemical context
The synthesis of new coordination compounds is still an important field in chemistry. In most cases, such compounds are prepared in solution but there are alternatives, where they are prepared in the solid state using, for example, molecular milling (Stolar et al., 2017; Darwish et al., 2019
), grinding (Adams et al., 2007
) or molten-flux synthesis (Höller et al., 2010
; Schönfeld et al., 2012
). In our own investigations, we frequently use thermal ligand removal of suitable precursor compounds for the solid-state synthesis of new coordination compounds that mostly consist of discrete complexes, in which the anionic ligands are only terminally bonded. Upon heating, these precursors frequently lose their neutral coligands in a stepwise fashion, forming intermediate compounds with condensed networks in which the metal cations are linked by the anionic ligands into one-, two- or three-dimensional networks. In the beginning, our interest focused on transition-metal–halide coordination compounds (Näther et al., 2001
; Näther & Jess, 2004
), but in recent years we have used this approach for the synthesis of transition-metal thio- and selenocyanates because these anionic ligands mediate reasonable magnetic exchange, which allows the preparation of compounds that show versatile magnetic behavior (Palion-Gazda et al., 2015
; Mekuimemba, et al., 2018
). In this context, of special interest are compounds based on CoII in which the cations are linked by pairs of thio- or selenocyanate anions into chains, because they can show three-dimensional but especially one-dimensional magnetic ordering (Werner et al., 2014
; Rams et al., 2020
). The major advantage of our approach is the fact that the new compounds are obtained in quantitative yield and that frequently metastable polymorphs or isomers can be prepared that often are not available from solution (Werner et al., 2015
).
In recent investigations, N-donor coligands have been used that mostly consist of pyridine derivatives (Rams et al., 2017), but to investigate the influence of the coligands on the magnetic anisotropy of CoII centers, we also used S-donor coligands, such as ethylenethiourea, that lead to a modified magnetic behavior (Jochim et al., 2020
). In a continuation of this work, we became interested in O-donor coligands and we found that only very few Co(NCS)2 compounds with bridging thiocyanate anions and such coligands have been reported in the literature (see Database survey). We also found that only in Co(NCS)2(THF)2 the CoII cations are linked by pairs of bridging anionic ligands into linear chains (Cambridge Structural Database refcode QIKQUY; Shurdha et al., 2013
). In this context, we became interested in pyridine N-oxide derivatives, for which two Co(NCS)2 compounds with bridging thiocyanate anions are reported in the literature (see Database survey). In our first investigations, we used 3-cyanopyridine N-oxide (C6H4N2O) as a coligand, which is commercially available and for which no coordination compounds have been reported. However, independent of the amounts of Co(NCS)2 and 3-cyanopyridine N-oxide in the synthesis, the same crystalline phase was always obtained. The CN- stretching vibration of the cyano group is observed at 2241 cm−1 in the IR spectrum, indicating that this group is not involved in the metal coordination (Fig. S1). The CN-stretching vibration of the thiocyanate anion occurs at 2051 cm−1, which proves that the anionic ligand is only terminally coordinated (Fig. S1). To confirm all these assumptions, the new crystalline phase was characterized by single crystal X-ray diffraction (see below).
2. Structural commentary
The 2(C6H4N2O)4, consists of one crystallographically independent CoII cation that is located on a center of inversion, as well as one independent thiocyanate anion and two independent 3-cyanopyridine N-oxide coligands in general positions (Fig. 1). The CoII cations therefore adopt trans-CoN2O4 octahedral geometries (Fig. 1
). Bond lengths and angles correspond to literature values and show that the octahedra are slightly distorted (Table 1
).
|
![]() | Figure 1 The molecular structure of the title compound with labeling and displacement ellipsoids drawn at the 50% probability level. Symmetry code: (i) −x, −y + 1, −z + 1. |
If the structure is checked for higher symmetry using PLATON (Spek et al., 2020) or checkCIF, a pseudo-translation and I2/m is suggested with 100% fit. The structure can easily be refined in this and the leads to reasonable reliability factors. The in I2/m, however, leads to significantly higher residuals than in P21/n [R(F) for 2829 reflections with Fo > 4σ(Fo) = 0.027 in P21/n versus 0.033 for 1446 reflections with Fo > 4σ(Fo) in I2/m and wR(F2) = 0.083 for all 2829 independent reflections (P21/n) versus 0.092 for all 1446 reflections (I2/m)]. In this context, it is noted that nearly all reflections violating the centering are observed. Moreover, from the in I2/m it is obvious that significantly enlarged anisotropic displacement parameters are observed, which are much larger than expected for a measurement at 100 K, indicating too high symmetry (Fig. 2
). For all these reasons, the is presented in the monoclinic primitive P21/n.
![]() | Figure 2 Molecular structure of the title compound refined in space group I2/m with labeling and displacement ellipsoids drawn at the 50% probability level. Symmetry codes: (i) −x, 1 − y, 1 − z, (ii) −x, y, 1 − z, (iii) x, 1 − y, z. |
3. Supramolecular features
In the extended structure of the title compound, the complexes are arranged in columns that proceed along the crystallographic a-axis (Fig. 3). In this direction the translation leading to the pseudo-centering is also obvious. Several C—H⋯O, C—H⋯S and C—H⋯N contacts are observed between the complexes, but from the distances and angles it is obvious that they do not correspond to strong interactions (Table 2
).
|
![]() | Figure 3 The packing of the title compound showing the arrangement of the discrete complexes along the crystallographic a-axis. |
4. Thermoanalytical investigations
Based on the single-crystal data, an X-ray powder pattern was calculated and compared with the experimental pattern, which proves that the title compound was obtained as a pure phase (Fig. S2). Because in our synthetic investigations no further compounds were detected, it was checked whether a compound with a more condensed network is available by thermal ligand removal. Therefore, the title compound was investigated simultaneously by differential thermoanalysis and thermogravimetry under nitrogen. Upon heating, only one mass loss of 58.8% is observed until 400°C that does not fit to a stepwise loss of the 3-cyanopyridine N-oxide ligands (calculated mass loss for each 3-cyanopyridine N-oxide ligand = 18.3%; Fig. S3). From the DTA curve, the onset of an endothermic event is visible, followed by a strong exothermic event at a peak temperature of 220°C. This is an unusual observation, because in previous investigations using pyridine derivatives the ligand removal always proceeds in an Oxidation of the compound might be excluded because all measurements were performed in a nitrogen atmosphere and therefore one must assume that this ligand is thermally unstable and decomposes upon heating. In agreement with these observations, the residue obtained at 400°C is amorphous against X-rays (Fig. S4).
5. Database survey
A search in the Cambridge Structural Database (version 5.43, last update March 2023; Groom et al., 2016) using ConQuest reveals that no coordination compounds with 3-cyanopyridine N-oxide as a ligand have been reported. With 4-cyanopyridine, three compounds are known, including 4-cyanopyridine N-oxide)bis(isothiocyanateaquazinc(II) (refcode UKEZIV; Mautner et al., 2016
) and the two isotypic compounds bis(μ-thiocyanato)-diaqua-tetrakis(4-cyanopyridine N-oxide)bis(isothiocyanato) cadmium(II) (UKIMAE; Mautner et al., 2016
) and manganese(II) (KESSIN; Mautner et al., 2018
). The Zn compound consists of discrete complexes, in which the ZnII cations are fivefold coordinated by two terminally N-bonded thiocyanate anions, two 3-cyanopyridine N-oxide ligands and one water molecule, whereas the Mn and Cd compounds consist of dinuclear units, in which each metal cation is octahedrally coordinated by one water molecule, one terminal and two bridging thiocyanate anions and two 4-cyanopyridine N-oxide ligands, and are linked into dinuclear units by pairs of μ-1,3-bridging thiocyanate anions.
Some compounds based on Co(NCS)2 and pyridine N-oxide derivatives in which the CoII cations are linked by μ-1,3-bridging thiocyanate anions are also known. This include the two isotypic compounds (4-methylpyridine N-oxide)bisthiocyanate)cobalt(II) (MEQKOJ; Zhang et al., 2006b) (4-methoxypyridine N-oxide)bisthiocyanate)cobalt(II) (TERRAK; Zhang et al., 2006a
), (4-methylpyridine N-oxide)(methanol)bisthiocyanate)cobalt(II) (REKBUF; Shi et al., 2006
) and bis(4-nitropyridine N-oxide)bis(thiocyanate)cobalt(II) (TILHIG; Shi et al., 2007
). In the first two compounds, the CoII cations are linked by pairs of thiocyanate anions into corrugated chains that are further connected into layers by μ-1,1(O,O) bridging coligands. In the third compound with methanol, two CoII cations are linked by pairs of anionic ligands into dinuclear units and are further linked by pairs of μ-1,1(O,O) bridging 4-nitropyridine N-oxide ligands. In the compound with the 4-nitro substituent, the cations are linked by pairs of bridging thiocyanate anions into chains that are corrugated because of the cis–cis–trans configuration at the CoII centers.
6. Synthesis and crystallization
Co(NCS)2 (99%) was purchased from Sigma Aldrich, 3-cyanopyridine N-oxide (97%) was purchased from Thermo Scientific and ethanol (99.9%) was purchased from Fisher Chemical.
Synthesis:
Single crystals were obtained by the reaction of 0.25 mmol (43.5 mg) Co(SCN)2 and 1 mmol (120 mg) 3-cyanopyridine N-oxide in 1 ml of ethanol. The reaction mixture was stored overnight, which lead to the formation of yellow needle-like crystals.
For the preparation of larger amounts of a microcrystalline powder, the same amount of reactants were stirred in 2 ml of ethanol for 1 d.
Experimental details:
The PXRD measurements were performed with a Stoe Transmission Powder Diffraction System (STADI P) equipped with a MYTHEN 1K detector and a Johansson-type Ge(111) monochromator using Cu Kα1 radiation (λ = 1.540598 Å).
The IR spectra were measured using an ATI Mattson Genesis Series FTIR Spectrometer, control software: WINFIRST, from ATI Mattson.
Thermogravimetry and differential thermoanalysis (TG–DTA) measurements were performed in a dynamic nitrogen atmosphere in Al2O3 crucibles using a STA-PT 1000 thermobalance from Linseis. The instrument was calibrated using standard reference materials.
7. Refinement
Crystal data, data collection and structure . The hydrogen atoms were positioned with idealized geometry and were refined with Uiso(H) = 1.2Ueq(C) using a riding model. As mentioned in the Structural commentary, the compound shows strong because of a pseudo-lattice translation indicating a centering, but our investigations show that the structure is best described in the primitive P21/n instead of I2/m. This is obvious in the reliability factors obtained by refinements in both space groups, but especially from the large components of the anisotropic displacement parameters if the structure is refined in the body-centered Moreover, nearly all of the reflections that would violate the centering were observed.
|
Supporting information
CCDC reference: 2286746
https://doi.org/10.1107/S2056989023006862/hb8070sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989023006862/hb8070Isup2.hkl
Fig. S1. IR spectrum of the title compound. Given is the value of the CN stretching vibration of the cyanao group and the thiocyanate anion. DOI: https://doi.org/10.1107/S2056989023006862/hb8070sup3.png
Fig. S2. Experimental (top) and calculated (bottom) X-ray powder pattern of the title compound. DOI: https://doi.org/10.1107/S2056989023006862/hb8070sup4.png
Fig. S3. DTG (top), TG (middle) and DTA curve (bottom) of the title compound measured with 4C/min. DOI: https://doi.org/10.1107/S2056989023006862/hb8070sup5.png
Fig. S4. Experimental X-ray powder pattern of the residue obtained after the first mass loss, in a thermogravimetric measurement of the title compound. DOI: https://doi.org/10.1107/S2056989023006862/hb8070sup6.png
Data collection: CrysAlis PRO 1.171.42.40a (Rigaku OD, 2022); cell
CrysAlis PRO 1.171.42.40a (Rigaku OD, 2022); data reduction: CrysAlis PRO 1.171.42.40a (Rigaku OD, 2022); program(s) used to solve structure: SHELXT2014/5 (Sheldrick, 2015b); program(s) used to refine structure: SHELXL2016/6 (Sheldrick, 2015a); molecular graphics: DIAMOND (Brandenburg & Putz, 1999); software used to prepare material for publication: publCIF (Westrip, 2010).[Co(NCS)2(C6H4N2O)4] | F(000) = 666 |
Mr = 655.54 | Dx = 1.548 Mg m−3 |
Monoclinic, P21/n | Cu Kα radiation, λ = 1.54184 Å |
a = 6.5899 (1) Å | Cell parameters from 16616 reflections |
b = 17.9658 (2) Å | θ = 4.5–76.3° |
c = 11.9444 (1) Å | µ = 6.63 mm−1 |
β = 96.131 (1)° | T = 100 K |
V = 1406.04 (3) Å3 | Needle, yellow |
Z = 2 | 0.28 × 0.03 × 0.03 mm |
XtaLAB Synergy, Dualflex, HyPix diffractometer | 2990 independent reflections |
Radiation source: micro-focus sealed X-ray tube, PhotonJet (Cu) X-ray Source | 2829 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.028 |
Detector resolution: 10.0000 pixels mm-1 | θmax = 78.3°, θmin = 4.5° |
ω scans | h = −8→7 |
Absorption correction: multi-scan (CrysAlisPro; Rigaku OD, 2022) | k = −22→22 |
Tmin = 0.571, Tmax = 1.000 | l = −13→15 |
23719 measured reflections |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.027 | w = 1/[σ2(Fo2) + (0.0511P)2 + 0.3714P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.083 | (Δ/σ)max = 0.001 |
S = 1.11 | Δρmax = 0.24 e Å−3 |
2990 reflections | Δρmin = −0.34 e Å−3 |
197 parameters | Extinction correction: SHELXL2016/6 (Sheldrick, 2015a), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
0 restraints | Extinction coefficient: 0.0007 (2) |
Primary atom site location: dual |
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. |
x | y | z | Uiso*/Ueq | ||
Co1 | 0.000000 | 0.500000 | 0.500000 | 0.01595 (11) | |
N1 | 0.1137 (2) | 0.50708 (6) | 0.66710 (11) | 0.0204 (3) | |
C1 | 0.1405 (2) | 0.50936 (7) | 0.76538 (13) | 0.0196 (3) | |
S1 | 0.17656 (6) | 0.51232 (2) | 0.90206 (3) | 0.02903 (12) | |
O11 | 0.22429 (14) | 0.57834 (6) | 0.46915 (8) | 0.0237 (2) | |
N11 | 0.23654 (17) | 0.60259 (6) | 0.36497 (9) | 0.0198 (2) | |
C11 | 0.0786 (2) | 0.64024 (8) | 0.31076 (11) | 0.0208 (3) | |
H11 | −0.037683 | 0.652022 | 0.348001 | 0.025* | |
C12 | 0.0881 (2) | 0.66154 (8) | 0.19988 (11) | 0.0214 (3) | |
C13 | 0.2587 (2) | 0.64494 (8) | 0.14458 (12) | 0.0246 (3) | |
H13 | 0.264095 | 0.658366 | 0.068026 | 0.030* | |
C14 | 0.4198 (2) | 0.60828 (9) | 0.20484 (13) | 0.0270 (3) | |
H14 | 0.539395 | 0.597242 | 0.170098 | 0.032* | |
C15 | 0.4073 (2) | 0.58770 (8) | 0.31525 (12) | 0.0242 (3) | |
H15 | 0.518894 | 0.563014 | 0.356478 | 0.029* | |
C16 | −0.0832 (2) | 0.70028 (8) | 0.14185 (12) | 0.0246 (3) | |
N12 | −0.2185 (2) | 0.73137 (8) | 0.09481 (11) | 0.0324 (3) | |
O21 | 0.20988 (14) | 0.41291 (6) | 0.49113 (8) | 0.0221 (2) | |
C21 | 0.0785 (2) | 0.34632 (7) | 0.33413 (12) | 0.0206 (3) | |
H21 | −0.041400 | 0.335659 | 0.368791 | 0.025* | |
C22 | 0.0971 (2) | 0.32231 (8) | 0.22576 (12) | 0.0218 (3) | |
C23 | 0.2739 (2) | 0.33654 (8) | 0.17478 (12) | 0.0263 (3) | |
H23 | 0.286155 | 0.320817 | 0.099860 | 0.032* | |
C24 | 0.4310 (2) | 0.37428 (9) | 0.23672 (13) | 0.0279 (3) | |
H24 | 0.554515 | 0.383844 | 0.204898 | 0.034* | |
C25 | 0.4087 (2) | 0.39810 (8) | 0.34478 (12) | 0.0239 (3) | |
H25 | 0.517252 | 0.423673 | 0.387264 | 0.029* | |
C26 | −0.0726 (2) | 0.28445 (8) | 0.16431 (12) | 0.0247 (3) | |
N22 | −0.2080 (2) | 0.25501 (8) | 0.11394 (12) | 0.0323 (3) | |
N21 | 0.23268 (17) | 0.38504 (6) | 0.39006 (9) | 0.0190 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.01140 (17) | 0.02239 (17) | 0.01407 (18) | 0.00014 (9) | 0.00137 (12) | −0.00016 (10) |
N1 | 0.0170 (6) | 0.0261 (6) | 0.0178 (6) | 0.0005 (4) | 0.0010 (5) | −0.0008 (4) |
C1 | 0.0135 (6) | 0.0248 (6) | 0.0207 (7) | −0.0004 (4) | 0.0032 (5) | −0.0009 (5) |
S1 | 0.0330 (2) | 0.0394 (2) | 0.01490 (19) | −0.00001 (15) | 0.00368 (14) | −0.00104 (13) |
O11 | 0.0188 (4) | 0.0343 (5) | 0.0174 (5) | −0.0063 (4) | −0.0012 (3) | 0.0061 (4) |
N11 | 0.0162 (5) | 0.0236 (5) | 0.0193 (5) | −0.0040 (4) | 0.0009 (4) | 0.0026 (4) |
C11 | 0.0167 (6) | 0.0240 (6) | 0.0216 (6) | −0.0005 (5) | 0.0014 (5) | 0.0002 (5) |
C12 | 0.0208 (6) | 0.0205 (6) | 0.0230 (7) | −0.0007 (5) | 0.0016 (5) | 0.0004 (5) |
C13 | 0.0256 (7) | 0.0284 (7) | 0.0203 (6) | −0.0024 (5) | 0.0044 (5) | 0.0011 (5) |
C14 | 0.0192 (6) | 0.0348 (8) | 0.0279 (7) | 0.0011 (5) | 0.0057 (5) | 0.0002 (6) |
C15 | 0.0172 (6) | 0.0279 (7) | 0.0275 (7) | −0.0008 (5) | 0.0018 (5) | 0.0021 (5) |
C16 | 0.0276 (7) | 0.0264 (7) | 0.0202 (6) | 0.0020 (5) | 0.0038 (5) | 0.0001 (5) |
N12 | 0.0348 (7) | 0.0369 (7) | 0.0250 (6) | 0.0122 (6) | 0.0009 (5) | 0.0006 (5) |
O21 | 0.0200 (5) | 0.0295 (5) | 0.0165 (4) | 0.0058 (4) | 0.0000 (3) | −0.0042 (4) |
C21 | 0.0165 (6) | 0.0222 (6) | 0.0230 (6) | −0.0001 (5) | 0.0022 (5) | 0.0011 (5) |
C22 | 0.0214 (6) | 0.0209 (6) | 0.0227 (6) | 0.0009 (5) | 0.0003 (5) | −0.0010 (5) |
C23 | 0.0239 (7) | 0.0324 (7) | 0.0232 (7) | 0.0005 (6) | 0.0053 (5) | −0.0035 (6) |
C24 | 0.0197 (6) | 0.0380 (8) | 0.0268 (7) | −0.0013 (6) | 0.0057 (5) | −0.0031 (6) |
C25 | 0.0158 (6) | 0.0294 (7) | 0.0261 (7) | −0.0005 (5) | 0.0010 (5) | −0.0022 (5) |
C26 | 0.0273 (7) | 0.0244 (7) | 0.0226 (7) | −0.0020 (5) | 0.0030 (5) | −0.0002 (5) |
N22 | 0.0343 (7) | 0.0333 (7) | 0.0286 (6) | −0.0102 (6) | 0.0001 (5) | −0.0022 (5) |
N21 | 0.0168 (5) | 0.0219 (5) | 0.0181 (5) | 0.0034 (4) | 0.0010 (4) | −0.0020 (4) |
Co1—N1i | 2.0596 (13) | C14—H14 | 0.9500 |
Co1—N1 | 2.0596 (13) | C14—C15 | 1.381 (2) |
Co1—O11 | 2.1019 (10) | C15—H15 | 0.9500 |
Co1—O11i | 2.1019 (10) | C16—N12 | 1.147 (2) |
Co1—O21i | 2.0985 (9) | O21—N21 | 1.3302 (14) |
Co1—O21 | 2.0985 (9) | C21—H21 | 0.9500 |
N1—C1 | 1.169 (2) | C21—C22 | 1.382 (2) |
C1—S1 | 1.6254 (16) | C21—N21 | 1.3480 (17) |
O11—N11 | 1.3290 (14) | C22—C23 | 1.395 (2) |
N11—C11 | 1.3478 (17) | C22—C26 | 1.4410 (19) |
N11—C15 | 1.3540 (18) | C23—H23 | 0.9500 |
C11—H11 | 0.9500 | C23—C24 | 1.384 (2) |
C11—C12 | 1.3864 (18) | C24—H24 | 0.9500 |
C12—C13 | 1.3956 (19) | C24—C25 | 1.382 (2) |
C12—C16 | 1.4398 (19) | C25—H25 | 0.9500 |
C13—H13 | 0.9500 | C25—N21 | 1.3519 (18) |
C13—C14 | 1.384 (2) | C26—N22 | 1.150 (2) |
N1i—Co1—N1 | 180.0 | C14—C13—H13 | 121.1 |
N1i—Co1—O11i | 86.48 (4) | C13—C14—H14 | 119.9 |
N1i—Co1—O11 | 93.52 (4) | C15—C14—C13 | 120.24 (13) |
N1—Co1—O11 | 86.48 (4) | C15—C14—H14 | 119.9 |
N1—Co1—O11i | 93.52 (4) | N11—C15—C14 | 120.21 (13) |
N1i—Co1—O21i | 85.49 (4) | N11—C15—H15 | 119.9 |
N1—Co1—O21 | 85.49 (4) | C14—C15—H15 | 119.9 |
N1i—Co1—O21 | 94.51 (4) | N12—C16—C12 | 179.29 (17) |
N1—Co1—O21i | 94.51 (4) | N21—O21—Co1 | 117.74 (7) |
O11i—Co1—O11 | 180.00 (3) | C22—C21—H21 | 120.4 |
O21—Co1—O11 | 90.62 (4) | N21—C21—H21 | 120.4 |
O21—Co1—O11i | 89.38 (4) | N21—C21—C22 | 119.20 (12) |
O21i—Co1—O11i | 90.62 (4) | C21—C22—C23 | 120.87 (13) |
O21i—Co1—O11 | 89.38 (4) | C21—C22—C26 | 118.88 (13) |
O21i—Co1—O21 | 180.0 | C23—C22—C26 | 120.21 (13) |
C1—N1—Co1 | 167.31 (12) | C22—C23—H23 | 121.0 |
N1—C1—S1 | 179.70 (15) | C24—C23—C22 | 117.94 (13) |
N11—O11—Co1 | 119.86 (7) | C24—C23—H23 | 121.0 |
O11—N11—C11 | 119.56 (11) | C23—C24—H24 | 119.9 |
O11—N11—C15 | 118.84 (11) | C25—C24—C23 | 120.19 (13) |
C11—N11—C15 | 121.60 (12) | C25—C24—H24 | 119.9 |
N11—C11—H11 | 120.5 | C24—C25—H25 | 120.0 |
N11—C11—C12 | 119.07 (12) | N21—C25—C24 | 120.07 (13) |
C12—C11—H11 | 120.5 | N21—C25—H25 | 120.0 |
C11—C12—C13 | 120.94 (13) | N22—C26—C22 | 178.95 (16) |
C11—C12—C16 | 118.69 (12) | O21—N21—C21 | 119.46 (11) |
C13—C12—C16 | 120.36 (12) | O21—N21—C25 | 118.86 (11) |
C12—C13—H13 | 121.1 | C21—N21—C25 | 121.66 (12) |
C14—C13—C12 | 117.87 (13) |
Symmetry code: (i) −x, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···O21i | 0.95 | 2.61 | 3.3295 (17) | 133 |
C11—H11···N22ii | 0.95 | 2.57 | 3.3902 (19) | 145 |
C14—H14···S1iii | 0.95 | 2.91 | 3.7585 (15) | 149 |
C15—H15···O21iii | 0.95 | 2.45 | 3.2351 (16) | 140 |
C21—H21···N12iv | 0.95 | 2.52 | 3.3233 (19) | 142 |
C24—H24···S1iii | 0.95 | 2.96 | 3.8082 (15) | 150 |
C25—H25···O11iii | 0.95 | 2.28 | 3.1335 (16) | 148 |
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x−1/2, y+1/2, −z+1/2; (iii) −x+1, −y+1, −z+1; (iv) −x−1/2, y−1/2, −z+1/2. |
Acknowledgements
This work was supported by the State of Schleswig-Holstein.
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