organic compounds
1,3-Bis[(naphthalen-2-ylsulfanyl)methyl]benzene
aInstituto de Química, Universidad Nacional Autónoma de México, Circuito exterior, Ciudad Universitaria, México, DF 04510, Mexico, and bCiencias Básicas e Ingeniería, Recursos de la Tierra, Universidad Autónoma Metropolitana, Av. Hidalgo Poniente, La Estación Lerma, Lerma de Villada, Estado de México, CP 52006, Mexico
*Correspondence e-mail: rrm@uaem.mx
Molecules of the title compound, C28H22S2, are located on a crystallographic mirror plane with one half-molecule in the The dihedral angle between the phenyl ring and the naphthyl unit is 83.14 (7)°. In the crystal, molecules are interconnected by C—H⋯S and C—H⋯π interactions.
Related literature
For information on pincer compounds, see: Albrecht & Morales-Morales (2009); Arroyo et al. (2003); Morales-Morales (2004, 2008, 2009); Morales-Morales & Jensen (2007).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536812015280/bt5855sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812015280/bt5855Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812015280/bt5855Isup3.cml
To a solution of 2-naphthalenethiol (0.320 g, 2.0 mmol), 0.057 g (2.5 mmol) of NaH in toluene (100 ml) were added. The reaction mixture was stirred at room temperature for 3 h. After this time, 0.264 g (1 mmol) of 1,3-bis(bromomethyl)benzene were added to yield a colourless solution that was further stirred for 5 h. Then, the solvent was evaporated under vacumm affording 1,3-bis[(naphthalen-2-ylsulfanyl)methyl]benzene (0.24 g) as a microcrystalline white powder (93% based on 1,3-Bis(bromomethyl)benzene). mp: 120–122 °C, MS—EI (m/z): 422 (100%) [M]+, 1H-NMR (300 MHz, CDCl3) δ (p.p.m.): 4.05 (s, 4H), 7.06–7.12 (d, 3H), 7.22 (s, 1H), 7.24 (d, 1H), 7.27 (d, 1H), 7.29–7.39 (m, 4H), 7.54–7.70 (m, 2H). 13 C-NMR (757 MHz, CDCl3) δ (p.p.m.): 38.82, 125.79, 126.50, 127.22, 127.72, 127.81, 127.85, 128.36, 128.75, 129.45, 133.72, 133.76, 137.73.
H atoms were included in calculated positions (C—H = 0.93 Å for aromatic H, C—H = 0.97 Å for methylene H), and refined using a riding model, with Uiso(H) = 1.2Ueq of the carrier atom.
Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C28H22S2 | F(000) = 888 |
Mr = 422.58 | Dx = 1.300 Mg m−3 |
Orthorhombic, Pnma | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2n | Cell parameters from 2418 reflections |
a = 8.651 (2) Å | θ = 3.0–25.1° |
b = 41.235 (10) Å | µ = 0.26 mm−1 |
c = 6.0517 (14) Å | T = 298 K |
V = 2158.9 (9) Å3 | Plates, colorless |
Z = 4 | 0.48 × 0.42 × 0.07 mm |
Bruker SMART APEX CCD diffractometer | 1994 independent reflections |
Radiation source: fine-focus sealed tube | 1345 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.065 |
Detector resolution: 0.661 pixels mm-1 | θmax = 25.4°, θmin = 3.0° |
ω–scans | h = −10→9 |
Absorption correction: analytical (SADABS; Bruker; 2007) | k = −43→48 |
Tmin = 0.893, Tmax = 0.979 | l = −7→7 |
7907 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.054 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.124 | H-atom parameters not refined |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0535P)2] where P = (Fo2 + 2Fc2)/3 |
1994 reflections | (Δ/σ)max < 0.001 |
139 parameters | Δρmax = 0.21 e Å−3 |
0 restraints | Δρmin = −0.16 e Å−3 |
C28H22S2 | V = 2158.9 (9) Å3 |
Mr = 422.58 | Z = 4 |
Orthorhombic, Pnma | Mo Kα radiation |
a = 8.651 (2) Å | µ = 0.26 mm−1 |
b = 41.235 (10) Å | T = 298 K |
c = 6.0517 (14) Å | 0.48 × 0.42 × 0.07 mm |
Bruker SMART APEX CCD diffractometer | 1994 independent reflections |
Absorption correction: analytical (SADABS; Bruker; 2007) | 1345 reflections with I > 2σ(I) |
Tmin = 0.893, Tmax = 0.979 | Rint = 0.065 |
7907 measured reflections |
R[F2 > 2σ(F2)] = 0.054 | 0 restraints |
wR(F2) = 0.124 | H-atom parameters not refined |
S = 1.02 | Δρmax = 0.21 e Å−3 |
1994 reflections | Δρmin = −0.16 e Å−3 |
139 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.49764 (9) | 0.180146 (17) | 0.07221 (12) | 0.0516 (3) | |
C1 | 0.5547 (5) | 0.2500 | 0.3529 (6) | 0.0456 (10) | |
H1 | 0.6393 | 0.2500 | 0.2581 | 0.055* | |
C2 | 0.4932 (3) | 0.22086 (6) | 0.4217 (4) | 0.0432 (7) | |
C3 | 0.3680 (4) | 0.22111 (7) | 0.5638 (4) | 0.0489 (8) | |
H3 | 0.3254 | 0.2017 | 0.6123 | 0.059* | |
C4 | 0.3065 (5) | 0.2500 | 0.6332 (6) | 0.0533 (11) | |
H4 | 0.2221 | 0.2500 | 0.7285 | 0.064* | |
C5 | 0.5635 (4) | 0.18939 (6) | 0.3482 (5) | 0.0561 (8) | |
H5A | 0.5335 | 0.1722 | 0.4484 | 0.067* | |
H5B | 0.6754 | 0.1911 | 0.3498 | 0.067* | |
C6 | 0.6690 (3) | 0.12415 (6) | 0.1558 (4) | 0.0419 (7) | |
H6 | 0.7048 | 0.1337 | 0.2853 | 0.050* | |
C7 | 0.5702 (3) | 0.14102 (6) | 0.0228 (4) | 0.0417 (7) | |
C8 | 0.5192 (3) | 0.12636 (7) | −0.1764 (4) | 0.0476 (7) | |
H8 | 0.4513 | 0.1376 | −0.2677 | 0.057* | |
C9 | 0.5670 (4) | 0.09654 (7) | −0.2359 (4) | 0.0491 (8) | |
H9 | 0.5331 | 0.0877 | −0.3688 | 0.059* | |
C10 | 0.7184 (4) | 0.04703 (7) | −0.1541 (5) | 0.0560 (8) | |
H10 | 0.6865 | 0.0377 | −0.2863 | 0.067* | |
C11 | 0.8133 (4) | 0.03010 (7) | −0.0168 (5) | 0.0603 (9) | |
H11 | 0.8453 | 0.0093 | −0.0553 | 0.072* | |
C12 | 0.8624 (4) | 0.04379 (7) | 0.1811 (5) | 0.0558 (8) | |
H12 | 0.9270 | 0.0321 | 0.2744 | 0.067* | |
C13 | 0.8166 (3) | 0.07420 (6) | 0.2392 (5) | 0.0474 (7) | |
H13 | 0.8505 | 0.0830 | 0.3720 | 0.057* | |
C14 | 0.7181 (3) | 0.09256 (6) | 0.1010 (4) | 0.0392 (6) | |
C15 | 0.6678 (3) | 0.07843 (6) | −0.0998 (4) | 0.0426 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0523 (5) | 0.0423 (4) | 0.0602 (5) | 0.0052 (4) | −0.0078 (4) | 0.0030 (4) |
C1 | 0.039 (2) | 0.052 (3) | 0.045 (2) | 0.000 | 0.0039 (18) | 0.000 |
C2 | 0.0429 (16) | 0.0472 (16) | 0.0393 (14) | 0.0059 (15) | −0.0087 (14) | 0.0035 (12) |
C3 | 0.0513 (19) | 0.0522 (18) | 0.0431 (16) | −0.0068 (16) | −0.0077 (14) | 0.0116 (14) |
C4 | 0.046 (3) | 0.074 (3) | 0.040 (2) | 0.000 | 0.0090 (19) | 0.000 |
C5 | 0.066 (2) | 0.0448 (16) | 0.0580 (17) | 0.0110 (16) | −0.0093 (16) | 0.0050 (15) |
C6 | 0.0420 (17) | 0.0402 (15) | 0.0435 (14) | −0.0036 (13) | −0.0045 (13) | −0.0030 (13) |
C7 | 0.0382 (16) | 0.0395 (15) | 0.0473 (16) | −0.0037 (13) | 0.0010 (13) | 0.0034 (13) |
C8 | 0.0489 (19) | 0.0495 (17) | 0.0445 (16) | −0.0017 (15) | −0.0083 (14) | 0.0061 (14) |
C9 | 0.058 (2) | 0.0524 (18) | 0.0372 (15) | −0.0095 (15) | −0.0059 (14) | −0.0013 (14) |
C10 | 0.066 (2) | 0.0489 (18) | 0.0533 (18) | −0.0071 (16) | 0.0021 (16) | −0.0089 (16) |
C11 | 0.075 (2) | 0.0375 (16) | 0.068 (2) | 0.0045 (16) | 0.0041 (18) | −0.0011 (16) |
C12 | 0.063 (2) | 0.0460 (17) | 0.0586 (19) | 0.0035 (16) | −0.0019 (17) | 0.0070 (15) |
C13 | 0.0508 (18) | 0.0431 (16) | 0.0483 (16) | 0.0008 (14) | −0.0011 (14) | 0.0020 (14) |
C14 | 0.0413 (16) | 0.0360 (14) | 0.0404 (15) | −0.0049 (13) | 0.0017 (12) | 0.0015 (12) |
C15 | 0.0492 (18) | 0.0385 (15) | 0.0400 (15) | −0.0085 (14) | 0.0037 (13) | −0.0004 (12) |
S1—C7 | 1.757 (3) | C7—C8 | 1.419 (4) |
S1—C5 | 1.805 (3) | C8—C9 | 1.346 (4) |
C1—C2 | 1.378 (3) | C8—H8 | 0.9300 |
C1—C2i | 1.378 (3) | C9—C15 | 1.414 (4) |
C1—H1 | 0.9300 | C9—H9 | 0.9300 |
C2—C3 | 1.384 (4) | C10—C11 | 1.361 (4) |
C2—C5 | 1.501 (4) | C10—C15 | 1.406 (4) |
C3—C4 | 1.371 (3) | C10—H10 | 0.9300 |
C3—H3 | 0.9300 | C11—C12 | 1.390 (4) |
C4—C3i | 1.371 (3) | C11—H11 | 0.9300 |
C4—H4 | 0.9300 | C12—C13 | 1.361 (4) |
C5—H5A | 0.9700 | C12—H12 | 0.9300 |
C5—H5B | 0.9700 | C13—C14 | 1.414 (4) |
C6—C7 | 1.365 (4) | C13—H13 | 0.9300 |
C6—C14 | 1.410 (3) | C14—C15 | 1.416 (3) |
C6—H6 | 0.9300 | ||
C7—S1—C5 | 103.79 (13) | C9—C8—C7 | 121.4 (3) |
C2—C1—C2i | 121.4 (4) | C9—C8—H8 | 119.3 |
C2—C1—H1 | 119.3 | C7—C8—H8 | 119.3 |
C2i—C1—H1 | 119.3 | C8—C9—C15 | 121.1 (3) |
C1—C2—C3 | 118.9 (3) | C8—C9—H9 | 119.5 |
C1—C2—C5 | 120.5 (3) | C15—C9—H9 | 119.5 |
C3—C2—C5 | 120.5 (3) | C11—C10—C15 | 121.2 (3) |
C4—C3—C2 | 120.1 (3) | C11—C10—H10 | 119.4 |
C4—C3—H3 | 120.0 | C15—C10—H10 | 119.4 |
C2—C3—H3 | 120.0 | C10—C11—C12 | 120.1 (3) |
C3i—C4—C3 | 120.7 (4) | C10—C11—H11 | 119.9 |
C3i—C4—H4 | 119.6 | C12—C11—H11 | 119.9 |
C3—C4—H4 | 119.6 | C13—C12—C11 | 120.5 (3) |
C2—C5—S1 | 109.20 (19) | C13—C12—H12 | 119.7 |
C2—C5—H5A | 109.8 | C11—C12—H12 | 119.7 |
S1—C5—H5A | 109.8 | C12—C13—C14 | 121.0 (3) |
C2—C5—H5B | 109.8 | C12—C13—H13 | 119.5 |
S1—C5—H5B | 109.8 | C14—C13—H13 | 119.5 |
H5A—C5—H5B | 108.3 | C6—C14—C13 | 122.5 (2) |
C7—C6—C14 | 121.4 (2) | C6—C14—C15 | 119.3 (2) |
C7—C6—H6 | 119.3 | C13—C14—C15 | 118.2 (2) |
C14—C6—H6 | 119.3 | C10—C15—C9 | 122.9 (3) |
C6—C7—C8 | 118.6 (2) | C10—C15—C14 | 118.9 (3) |
C6—C7—S1 | 126.3 (2) | C9—C15—C14 | 118.2 (2) |
C8—C7—S1 | 115.1 (2) |
Symmetry code: (i) x, −y+1/2, z. |
Cg1 and Cg2 are the centroids of the C1–C4/C2'/C3' and C6–C9/C14/C15 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5B···S1ii | 0.97 | 2.86 | 3.806 (4) | 164 |
C1—H1···Cg1ii | 0.93 | 2.94 | 3.867 (4) | 173 |
C13—H13···Cg2iii | 0.93 | 2.76 | 3.503 (3) | 138 |
Symmetry codes: (ii) x+1/2, y, −z+1/2; (iii) x+1/2, −y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C28H22S2 |
Mr | 422.58 |
Crystal system, space group | Orthorhombic, Pnma |
Temperature (K) | 298 |
a, b, c (Å) | 8.651 (2), 41.235 (10), 6.0517 (14) |
V (Å3) | 2158.9 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.26 |
Crystal size (mm) | 0.48 × 0.42 × 0.07 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD diffractometer |
Absorption correction | Analytical (SADABS; Bruker; 2007) |
Tmin, Tmax | 0.893, 0.979 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7907, 1994, 1345 |
Rint | 0.065 |
(sin θ/λ)max (Å−1) | 0.603 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.054, 0.124, 1.02 |
No. of reflections | 1994 |
No. of parameters | 139 |
H-atom treatment | H-atom parameters not refined |
Δρmax, Δρmin (e Å−3) | 0.21, −0.16 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008).
Cg1 and Cg2 are the centroids of the C1–C4/C2'/C3' and C6–C9/C14/C15 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5B···S1i | 0.97 | 2.86 | 3.806 (4) | 164 |
C1—H1···Cg1i | 0.93 | 2.94 | 3.867 (4) | 173 |
C13—H13···Cg2ii | 0.93 | 2.76 | 3.503 (3) | 138 |
Symmetry codes: (i) x+1/2, y, −z+1/2; (ii) x+1/2, −y+1/2, −z+1/2. |
Acknowledgements
RRM thanks CONACYT for a posdoctoral scholarship (agreement No. 290586-UNAM). Support of this research was provided by CONACYT (grant No. 154732) and PAPIIT (grant No. IN201711). DMM would like acknowledge Dr Ruben A. Toscano for technical assistance.
References
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Pincer compounds represent a group of species with very particular and interesting properties among which their high thermal stability and unusual reactivities that confer to the metal complexes they form stand out. It is due, to the characteristics of robustness and thermal stability that pincer compounds have attracted the continuos attention of the chemistry community for multiple applications (Morales-Morales et al., 2004, Morales-Morales et al. 2007, Albrecht et al., 2009, Morales-Morales, 2008, Morales-Morales, 2009). In the beginning, the very simple backbone exhibited by these compounds did not anticipate the wide variety of possible functionalization in the main frame of the complex.
Among these species, those including sulfur as donor atom have been scarcely studied (Arroyo et al., 2003), mostly due to the well known tendency of sulfur to kill the activity of homogeneous catalysts. Thus, following our continuous interest in the synthesis of pincer type ligands we report the crystal structure of the potentially pincer sulfur based ligand 1,3-bis((naphthalen-2-ylthio)methyl)benzene.
In the asymmetric unit only half of the molecule of the compound 1,3-bis(naphthalen-2-ylthio)methyl)benzene is found. The other half is generated by a mirror plane. The molecular structure of the title compound is shown in Figure 1. The phenyl and the naphthyl enclose a dihedral angle of 83.14 (7)°. The two naphthyl planes have a dihedral angle of 45.64 (4)°. The sulfur atoms form weak hydrogen bonds (C5—H5···S1). Two C—H···π interactions [C1—H1···Cg1 and C13—H13···Cg2] further connect the molecules into ribbons running along the a-axis