metal-organic compounds
Bis{2-[4-(methylsulfanyl)phenyl]-1H-benzimidazol-3-ium} tetrabromidocadmate(II) ethanol monosolvate
aDepartment of Chemistry, Bangalore University, Bangalore 560 001, Karnataka, India
*Correspondence e-mail: noorsb@rediffmail.com
In the anion of the title compound, (C14H13N2S)2[CdBr4]·C2H5OH, the CdII atom is in a distorted tetrahedral environment and one of the Br atoms is disordered over three sites with site-occupancy factors of 0.828 (5), 0.106 (3) and 0.068 (4). In the crystal, intermolecular N—H⋯O, C—H⋯O and N—H⋯Br interactions result in a two-dimensional polymeric network extending parallel to (010).
Related literature
For general background to benzimidazole derivatives, see: Huang & Scarborough (1999); Preston (1974); Zarrinmayeh et al. (1998); Zhu et al. (2000). For related structures, see: Ziaulla et al. (2011). For hydrogen bonding, see: Bernstein et al. (1995); Nardelli (1983).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and CAMERON (Watkin et al., 1996); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536811018058/ds2093sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811018058/ds2093Isup2.hkl
An ethanolic solution (15 ml) of the 2-(4-Methyl sulfanyl phenyl)-1H- benzimidazole) (0.960 mg, 2 mmol) was added to a solution of cadmium(II) bromide (0.272 mg, 1 mmol) in ethanol (25 ml). The mixture was then treated with 48% HBr (2–3 ml) followed by liquid Br2 (2–3 ml). The mixture was refluxed for nearly six hours during which yellow crystals suitable for X-ray analysis were obtained. The crystals were washed with cold ethanol and dried in vacuum over P2O5. (yield 1.23 mg, 85%).
The H atoms were placed at calculated positions in the riding model approximation with N—H = 0.83 and C—H = 0.95 Å, and Uiso(H) = 1.2Ueq(N/C).
Data collection: SMART (Bruker, 1998); cell
SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and CAMERON (Watkin et al., 1996); software used to prepare material for publication: WinGX (Farrugia, 1999).(C14H13N2S)2[CdBr4]·C2H6O | F(000) = 3744 |
Mr = 960.76 | Dx = 1.867 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 7467 reflections |
a = 22.1321 (15) Å | θ = 1.8–27.0° |
b = 13.8746 (10) Å | µ = 5.47 mm−1 |
c = 22.2594 (16) Å | T = 123 K |
V = 6835.3 (8) Å3 | Block, yellow |
Z = 8 | 0.20 × 0.18 × 0.18 mm |
Bruker SMART APEX CCD detector diffractometer | 7467 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 5951 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.084 |
ω scans | θmax = 27.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −28→28 |
Tmin = 0.408, Tmax = 0.439 | k = −17→17 |
93968 measured reflections | l = −28→28 |
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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.079 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.79 | w = 1/[σ2(Fo2) + (0.0318P)2 + 49.2262P] where P = (Fo2 + 2Fc2)/3 |
7467 reflections | (Δ/σ)max = 0.001 |
407 parameters | Δρmax = 0.87 e Å−3 |
0 restraints | Δρmin = −0.69 e Å−3 |
(C14H13N2S)2[CdBr4]·C2H6O | V = 6835.3 (8) Å3 |
Mr = 960.76 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 22.1321 (15) Å | µ = 5.47 mm−1 |
b = 13.8746 (10) Å | T = 123 K |
c = 22.2594 (16) Å | 0.20 × 0.18 × 0.18 mm |
Bruker SMART APEX CCD detector diffractometer | 7467 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 5951 reflections with I > 2σ(I) |
Tmin = 0.408, Tmax = 0.439 | Rint = 0.084 |
93968 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.079 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.79 | w = 1/[σ2(Fo2) + (0.0318P)2 + 49.2262P] where P = (Fo2 + 2Fc2)/3 |
7467 reflections | Δρmax = 0.87 e Å−3 |
407 parameters | Δρmin = −0.69 e Å−3 |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | Occ. (<1) | |
Cd1 | 0.348496 (11) | 0.21808 (2) | 0.361336 (13) | 0.02080 (7) | |
Br1 | 0.326079 (18) | 0.11642 (3) | 0.26634 (2) | 0.02983 (11) | |
Br2 | 0.399388 (19) | 0.11298 (3) | 0.441935 (19) | 0.02699 (10) | |
Br3 | 0.425609 (17) | 0.35205 (3) | 0.330092 (18) | 0.02342 (9) | |
Br4A | 0.25223 (3) | 0.29865 (10) | 0.40079 (6) | 0.0445 (4) | 0.828 (5) |
Br4B | 0.2514 (2) | 0.2592 (6) | 0.4250 (3) | 0.0302 (17)* | 0.106 (3) |
Br4C | 0.2621 (4) | 0.3426 (10) | 0.3968 (3) | 0.028 (3)* | 0.068 (4) |
S1 | 0.11862 (4) | 0.36770 (8) | 0.16669 (5) | 0.0261 (2) | |
S2 | 0.64644 (5) | 0.09455 (8) | 0.43078 (5) | 0.0259 (2) | |
N1 | 0.42680 (14) | 0.3486 (2) | 0.18313 (16) | 0.0184 (7) | |
H1N | 0.4190 (18) | 0.346 (3) | 0.217 (2) | 0.011 (11)* | |
N2 | 0.41912 (14) | 0.3569 (2) | 0.08615 (16) | 0.0172 (7) | |
H2N | 0.405 (2) | 0.362 (3) | 0.051 (2) | 0.022 (12)* | |
N3 | 0.45281 (14) | 0.1032 (2) | 0.19059 (16) | 0.0186 (7) | |
H3N | 0.429 (2) | 0.100 (4) | 0.218 (2) | 0.038 (15)* | |
N4 | 0.53761 (15) | 0.1058 (2) | 0.14156 (16) | 0.0208 (7) | |
H4N | 0.575 (2) | 0.103 (3) | 0.136 (2) | 0.034 (13)* | |
O1 | 0.15209 (14) | 0.1207 (3) | 0.39651 (19) | 0.0460 (9) | |
H1 | 0.1697 | 0.1741 | 0.3994 | 0.069* | |
C1 | 0.72537 (18) | 0.1017 (3) | 0.4124 (2) | 0.0306 (10) | |
H1A | 0.7375 | 0.0434 | 0.3907 | 0.046* | |
H1B | 0.7491 | 0.1073 | 0.4494 | 0.046* | |
H1C | 0.7326 | 0.1583 | 0.3871 | 0.046* | |
C2 | 0.61084 (17) | 0.0962 (3) | 0.36033 (19) | 0.0194 (8) | |
C3 | 0.64147 (17) | 0.0996 (3) | 0.3056 (2) | 0.0229 (9) | |
H3 | 0.6844 | 0.1015 | 0.3049 | 0.027* | |
C4 | 0.60955 (16) | 0.1002 (3) | 0.25272 (19) | 0.0214 (8) | |
H4 | 0.6307 | 0.1015 | 0.2156 | 0.026* | |
C5 | 0.54640 (17) | 0.0990 (3) | 0.25268 (18) | 0.0184 (8) | |
C6 | 0.51621 (16) | 0.0957 (3) | 0.30770 (18) | 0.0196 (8) | |
H6 | 0.4733 | 0.0944 | 0.3084 | 0.024* | |
C7 | 0.54755 (17) | 0.0943 (3) | 0.36072 (19) | 0.0212 (8) | |
H7 | 0.5264 | 0.0920 | 0.3978 | 0.025* | |
C8 | 0.51336 (16) | 0.1021 (3) | 0.19612 (18) | 0.0181 (8) | |
C9 | 0.49220 (16) | 0.1105 (3) | 0.09894 (18) | 0.0205 (8) | |
C10 | 0.43776 (17) | 0.1091 (3) | 0.13000 (18) | 0.0186 (8) | |
C11 | 0.38240 (17) | 0.1154 (3) | 0.1008 (2) | 0.0234 (9) | |
H11 | 0.3452 | 0.1145 | 0.1222 | 0.028* | |
C12 | 0.38445 (18) | 0.1230 (3) | 0.0395 (2) | 0.0252 (9) | |
H12 | 0.3476 | 0.1283 | 0.0179 | 0.030* | |
C13 | 0.43935 (19) | 0.1233 (3) | 0.0071 (2) | 0.0279 (9) | |
H13 | 0.4386 | 0.1280 | −0.0354 | 0.034* | |
C14 | 0.49412 (19) | 0.1170 (3) | 0.0366 (2) | 0.0271 (9) | |
H14 | 0.5313 | 0.1170 | 0.0154 | 0.033* | |
C15 | 0.08636 (17) | 0.3561 (3) | 0.0930 (2) | 0.0263 (9) | |
H15A | 0.1001 | 0.4096 | 0.0677 | 0.039* | |
H15B | 0.0422 | 0.3575 | 0.0959 | 0.039* | |
H15C | 0.0992 | 0.2949 | 0.0751 | 0.039* | |
C16 | 0.19661 (16) | 0.3623 (3) | 0.15389 (19) | 0.0209 (8) | |
C17 | 0.22338 (16) | 0.3494 (3) | 0.09802 (19) | 0.0203 (8) | |
H17 | 0.1987 | 0.3427 | 0.0633 | 0.024* | |
C18 | 0.28564 (16) | 0.3464 (3) | 0.09239 (18) | 0.0197 (8) | |
H18 | 0.3034 | 0.3379 | 0.0539 | 0.024* | |
C19 | 0.32244 (16) | 0.3556 (3) | 0.14304 (18) | 0.0182 (8) | |
C20 | 0.29562 (17) | 0.3688 (3) | 0.19946 (19) | 0.0233 (8) | |
H20 | 0.3202 | 0.3754 | 0.2342 | 0.028* | |
C21 | 0.23346 (18) | 0.3722 (3) | 0.2046 (2) | 0.0253 (9) | |
H21 | 0.2155 | 0.3813 | 0.2430 | 0.030* | |
C22 | 0.38773 (16) | 0.3542 (3) | 0.13739 (17) | 0.0172 (7) | |
C23 | 0.48535 (16) | 0.3490 (3) | 0.16087 (18) | 0.0180 (8) | |
C24 | 0.54085 (17) | 0.3457 (3) | 0.1900 (2) | 0.0253 (9) | |
H24 | 0.5440 | 0.3420 | 0.2325 | 0.030* | |
C25 | 0.59109 (18) | 0.3483 (3) | 0.1532 (2) | 0.0301 (10) | |
H25 | 0.6301 | 0.3463 | 0.1710 | 0.036* | |
C26 | 0.58653 (17) | 0.3537 (3) | 0.0909 (2) | 0.0273 (9) | |
H26 | 0.6225 | 0.3555 | 0.0676 | 0.033* | |
C27 | 0.53125 (17) | 0.3566 (3) | 0.0619 (2) | 0.0235 (9) | |
H27 | 0.5280 | 0.3602 | 0.0194 | 0.028* | |
C28 | 0.48085 (16) | 0.3539 (3) | 0.09907 (18) | 0.0174 (7) | |
C29 | 0.22850 (16) | 0.0414 (3) | 0.45435 (18) | 0.0460 (13) | |
H29A | 0.2535 | 0.0992 | 0.4589 | 0.069* | |
H29B | 0.2542 | −0.0160 | 0.4559 | 0.069* | |
H29C | 0.1988 | 0.0388 | 0.4869 | 0.069* | |
C30 | 0.19621 (16) | 0.0449 (3) | 0.39490 (18) | 0.0428 (12) | |
H30A | 0.2256 | 0.0570 | 0.3622 | 0.051* | |
H30B | 0.1761 | −0.0176 | 0.3871 | 0.051* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cd1 | 0.01375 (12) | 0.02995 (15) | 0.01871 (15) | 0.00150 (11) | −0.00061 (11) | −0.00047 (12) |
Br1 | 0.01902 (18) | 0.0486 (3) | 0.0218 (2) | −0.00511 (18) | 0.00033 (16) | −0.00842 (19) |
Br2 | 0.0268 (2) | 0.0371 (2) | 0.0170 (2) | 0.00091 (17) | −0.00239 (16) | 0.00446 (17) |
Br3 | 0.02397 (19) | 0.0292 (2) | 0.0171 (2) | −0.00377 (16) | −0.00242 (16) | 0.00177 (16) |
Br4A | 0.0152 (3) | 0.0288 (7) | 0.0897 (8) | 0.0002 (3) | 0.0138 (3) | −0.0106 (5) |
S1 | 0.0164 (4) | 0.0349 (6) | 0.0269 (6) | 0.0037 (4) | 0.0056 (4) | 0.0071 (5) |
S2 | 0.0231 (5) | 0.0303 (5) | 0.0241 (6) | 0.0015 (4) | −0.0071 (4) | −0.0005 (4) |
N1 | 0.0197 (16) | 0.0236 (17) | 0.0121 (18) | 0.0033 (13) | −0.0002 (13) | 0.0013 (14) |
N2 | 0.0143 (14) | 0.0235 (16) | 0.0137 (18) | −0.0019 (12) | −0.0029 (13) | −0.0010 (13) |
N3 | 0.0138 (15) | 0.0223 (17) | 0.0196 (19) | −0.0024 (12) | 0.0015 (13) | 0.0029 (14) |
N4 | 0.0147 (15) | 0.0261 (17) | 0.0218 (19) | 0.0031 (13) | 0.0018 (13) | 0.0018 (14) |
O1 | 0.0256 (16) | 0.052 (2) | 0.060 (3) | 0.0025 (15) | −0.0133 (17) | −0.010 (2) |
C1 | 0.0209 (19) | 0.031 (2) | 0.040 (3) | 0.0003 (17) | −0.0128 (19) | 0.002 (2) |
C2 | 0.0216 (18) | 0.0139 (17) | 0.023 (2) | 0.0013 (14) | −0.0059 (16) | 0.0002 (15) |
C3 | 0.0143 (17) | 0.024 (2) | 0.030 (2) | 0.0039 (15) | 0.0001 (16) | 0.0005 (17) |
C4 | 0.0147 (17) | 0.027 (2) | 0.023 (2) | 0.0007 (15) | 0.0014 (15) | −0.0019 (17) |
C5 | 0.0180 (17) | 0.0178 (18) | 0.019 (2) | 0.0018 (14) | 0.0005 (15) | 0.0007 (15) |
C6 | 0.0149 (17) | 0.0217 (19) | 0.022 (2) | 0.0015 (14) | 0.0024 (15) | −0.0014 (16) |
C7 | 0.0180 (17) | 0.0232 (19) | 0.022 (2) | 0.0003 (15) | 0.0050 (16) | −0.0001 (16) |
C8 | 0.0168 (17) | 0.0167 (18) | 0.021 (2) | −0.0006 (14) | 0.0010 (15) | 0.0025 (16) |
C9 | 0.0180 (18) | 0.0240 (19) | 0.020 (2) | 0.0044 (15) | −0.0004 (15) | −0.0003 (16) |
C10 | 0.0219 (18) | 0.0176 (18) | 0.016 (2) | −0.0021 (14) | 0.0003 (15) | 0.0011 (15) |
C11 | 0.0181 (18) | 0.0229 (19) | 0.029 (2) | −0.0014 (15) | −0.0034 (16) | −0.0016 (17) |
C12 | 0.026 (2) | 0.024 (2) | 0.026 (2) | 0.0024 (16) | −0.0112 (17) | −0.0067 (17) |
C13 | 0.035 (2) | 0.033 (2) | 0.015 (2) | 0.0056 (18) | −0.0035 (17) | −0.0049 (18) |
C14 | 0.027 (2) | 0.031 (2) | 0.023 (2) | 0.0022 (17) | 0.0060 (17) | −0.0015 (18) |
C15 | 0.0160 (18) | 0.034 (2) | 0.029 (2) | 0.0018 (16) | 0.0002 (16) | 0.0008 (19) |
C16 | 0.0153 (17) | 0.0181 (18) | 0.029 (2) | 0.0021 (14) | 0.0042 (16) | 0.0044 (16) |
C17 | 0.0163 (17) | 0.0217 (19) | 0.023 (2) | −0.0010 (14) | −0.0014 (16) | −0.0011 (16) |
C18 | 0.0169 (17) | 0.0224 (19) | 0.020 (2) | −0.0003 (14) | 0.0039 (15) | 0.0006 (16) |
C19 | 0.0182 (17) | 0.0171 (17) | 0.019 (2) | 0.0020 (14) | 0.0016 (15) | 0.0000 (15) |
C20 | 0.0213 (19) | 0.028 (2) | 0.021 (2) | 0.0022 (16) | 0.0011 (16) | 0.0035 (17) |
C21 | 0.0239 (19) | 0.032 (2) | 0.020 (2) | 0.0040 (16) | 0.0048 (17) | 0.0045 (18) |
C22 | 0.0224 (18) | 0.0138 (17) | 0.015 (2) | −0.0001 (14) | 0.0015 (15) | −0.0008 (15) |
C23 | 0.0163 (17) | 0.0182 (18) | 0.019 (2) | −0.0007 (14) | −0.0027 (15) | −0.0016 (16) |
C24 | 0.0214 (19) | 0.031 (2) | 0.024 (2) | 0.0006 (16) | −0.0071 (17) | 0.0011 (18) |
C25 | 0.0187 (19) | 0.035 (2) | 0.036 (3) | −0.0032 (17) | −0.0103 (18) | 0.000 (2) |
C26 | 0.0157 (18) | 0.038 (2) | 0.028 (2) | 0.0009 (16) | 0.0009 (16) | 0.0081 (19) |
C27 | 0.0196 (18) | 0.027 (2) | 0.025 (2) | 0.0007 (15) | 0.0017 (16) | 0.0024 (17) |
C28 | 0.0163 (17) | 0.0173 (17) | 0.019 (2) | −0.0005 (14) | −0.0048 (15) | −0.0011 (15) |
C29 | 0.048 (3) | 0.054 (3) | 0.036 (3) | −0.005 (3) | −0.006 (2) | −0.003 (3) |
C30 | 0.031 (2) | 0.049 (3) | 0.049 (3) | 0.007 (2) | −0.007 (2) | −0.009 (3) |
Cd1—Br4A | 2.5612 (6) | C9—C14 | 1.390 (6) |
Cd1—Br2 | 2.5717 (5) | C9—C10 | 1.389 (5) |
Cd1—Br1 | 2.5898 (5) | C10—C11 | 1.390 (5) |
Cd1—Br3 | 2.6175 (5) | C11—C12 | 1.370 (6) |
Cd1—Br4B | 2.636 (5) | C11—H11 | 0.9500 |
Cd1—Br4C | 2.695 (8) | C12—C13 | 1.413 (6) |
Br4A—Br4C | 0.654 (14) | C12—H12 | 0.9500 |
Br4A—Br4B | 0.768 (8) | C13—C14 | 1.382 (6) |
Br4B—Br4C | 1.338 (16) | C13—H13 | 0.9500 |
S1—C16 | 1.751 (4) | C14—H14 | 0.9500 |
S1—C15 | 1.797 (4) | C15—H15A | 0.9800 |
S2—C2 | 1.755 (4) | C15—H15B | 0.9800 |
S2—C1 | 1.797 (4) | C15—H15C | 0.9800 |
N1—C22 | 1.338 (5) | C16—C17 | 1.389 (6) |
N1—C23 | 1.387 (5) | C16—C21 | 1.400 (6) |
N1—H1N | 0.77 (4) | C17—C18 | 1.384 (5) |
N2—C22 | 1.336 (5) | C17—H17 | 0.9500 |
N2—C28 | 1.397 (4) | C18—C19 | 1.397 (5) |
N2—H2N | 0.84 (5) | C18—H18 | 0.9500 |
N3—C8 | 1.346 (5) | C19—C20 | 1.401 (6) |
N3—C10 | 1.392 (5) | C19—C22 | 1.451 (5) |
N3—H3N | 0.81 (5) | C20—C21 | 1.381 (5) |
N4—C8 | 1.329 (5) | C20—H20 | 0.9500 |
N4—C9 | 1.384 (5) | C21—H21 | 0.9500 |
N4—H4N | 0.84 (5) | C23—C28 | 1.381 (5) |
O1—C30 | 1.435 (5) | C23—C24 | 1.390 (5) |
O1—H1 | 0.8400 | C24—C25 | 1.382 (6) |
C1—H1A | 0.9800 | C24—H24 | 0.9500 |
C1—H1B | 0.9800 | C25—C26 | 1.392 (6) |
C1—H1C | 0.9800 | C25—H25 | 0.9500 |
C2—C3 | 1.395 (6) | C26—C27 | 1.384 (5) |
C2—C7 | 1.401 (5) | C26—H26 | 0.9500 |
C3—C4 | 1.373 (6) | C27—C28 | 1.390 (5) |
C3—H3 | 0.9500 | C27—H27 | 0.9500 |
C4—C5 | 1.398 (5) | C29—C30 | 1.5047 |
C4—H4 | 0.9500 | C29—H29A | 0.9800 |
C5—C6 | 1.396 (5) | C29—H29B | 0.9800 |
C5—C8 | 1.457 (5) | C29—H29C | 0.9800 |
C6—C7 | 1.369 (6) | C30—H30A | 0.9900 |
C6—H6 | 0.9500 | C30—H30B | 0.9900 |
C7—H7 | 0.9500 | ||
Br4A—Cd1—Br2 | 111.87 (4) | C11—C10—N3 | 131.9 (4) |
Br4A—Cd1—Br1 | 111.00 (2) | C12—C11—C10 | 116.2 (4) |
Br2—Cd1—Br1 | 110.162 (19) | C12—C11—H11 | 121.9 |
Br4A—Cd1—Br3 | 108.88 (4) | C10—C11—H11 | 121.9 |
Br2—Cd1—Br3 | 107.605 (16) | C11—C12—C13 | 122.5 (4) |
Br1—Cd1—Br3 | 107.142 (17) | C11—C12—H12 | 118.8 |
Br4A—Cd1—Br4B | 16.92 (16) | C13—C12—H12 | 118.8 |
Br2—Cd1—Br4B | 96.01 (16) | C14—C13—C12 | 120.8 (4) |
Br1—Cd1—Br4B | 113.60 (11) | C14—C13—H13 | 119.6 |
Br3—Cd1—Br4B | 121.39 (17) | C12—C13—H13 | 119.6 |
Br4A—Cd1—Br4C | 14.0 (3) | C13—C14—C9 | 116.8 (4) |
Br2—Cd1—Br4C | 118.01 (18) | C13—C14—H14 | 121.6 |
Br1—Cd1—Br4C | 116.9 (2) | C9—C14—H14 | 121.6 |
Br3—Cd1—Br4C | 94.9 (3) | S1—C15—H15A | 109.5 |
Br4B—Cd1—Br4C | 29.0 (3) | S1—C15—H15B | 109.5 |
Br4C—Br4A—Br4B | 140.2 (8) | H15A—C15—H15B | 109.5 |
Br4C—Br4A—Cd1 | 94.7 (6) | S1—C15—H15C | 109.5 |
Br4B—Br4A—Cd1 | 87.1 (4) | H15A—C15—H15C | 109.5 |
Br4A—Br4B—Br4C | 18.3 (5) | H15B—C15—H15C | 109.5 |
Br4A—Br4B—Cd1 | 76.0 (4) | C17—C16—C21 | 119.1 (3) |
Br4C—Br4B—Cd1 | 77.9 (4) | C17—C16—S1 | 124.9 (3) |
Br4A—Br4C—Br4B | 21.6 (5) | C21—C16—S1 | 116.0 (3) |
Br4A—Br4C—Cd1 | 71.3 (6) | C18—C17—C16 | 120.6 (4) |
Br4B—Br4C—Cd1 | 73.0 (5) | C18—C17—H17 | 119.7 |
C16—S1—C15 | 103.9 (2) | C16—C17—H17 | 119.7 |
C2—S2—C1 | 103.4 (2) | C17—C18—C19 | 120.3 (4) |
C22—N1—C23 | 109.4 (3) | C17—C18—H18 | 119.9 |
C22—N1—H1N | 127 (3) | C19—C18—H18 | 119.9 |
C23—N1—H1N | 124 (3) | C18—C19—C20 | 119.2 (3) |
C22—N2—C28 | 109.4 (3) | C18—C19—C22 | 120.6 (4) |
C22—N2—H2N | 127 (3) | C20—C19—C22 | 120.1 (4) |
C28—N2—H2N | 124 (3) | C21—C20—C19 | 120.1 (4) |
C8—N3—C10 | 109.1 (3) | C21—C20—H20 | 120.0 |
C8—N3—H3N | 126 (4) | C19—C20—H20 | 120.0 |
C10—N3—H3N | 125 (4) | C20—C21—C16 | 120.6 (4) |
C8—N4—C9 | 109.6 (3) | C20—C21—H21 | 119.7 |
C8—N4—H4N | 122 (3) | C16—C21—H21 | 119.7 |
C9—N4—H4N | 128 (3) | N2—C22—N1 | 108.4 (3) |
C30—O1—H1 | 109.5 | N2—C22—C19 | 126.3 (4) |
S2—C1—H1A | 109.5 | N1—C22—C19 | 125.3 (4) |
S2—C1—H1B | 109.5 | C28—C23—N1 | 106.8 (3) |
H1A—C1—H1B | 109.5 | C28—C23—C24 | 122.0 (4) |
S2—C1—H1C | 109.5 | N1—C23—C24 | 131.2 (4) |
H1A—C1—H1C | 109.5 | C25—C24—C23 | 115.7 (4) |
H1B—C1—H1C | 109.5 | C25—C24—H24 | 122.1 |
C3—C2—C7 | 119.5 (4) | C23—C24—H24 | 122.1 |
C3—C2—S2 | 124.2 (3) | C24—C25—C26 | 122.3 (4) |
C7—C2—S2 | 116.3 (3) | C24—C25—H25 | 118.9 |
C4—C3—C2 | 119.9 (3) | C26—C25—H25 | 118.9 |
C4—C3—H3 | 120.0 | C27—C26—C25 | 122.0 (4) |
C2—C3—H3 | 120.0 | C27—C26—H26 | 119.0 |
C3—C4—C5 | 121.0 (4) | C25—C26—H26 | 119.0 |
C3—C4—H4 | 119.5 | C28—C27—C26 | 115.5 (4) |
C5—C4—H4 | 119.5 | C28—C27—H27 | 122.2 |
C6—C5—C4 | 118.6 (4) | C26—C27—H27 | 122.2 |
C6—C5—C8 | 121.3 (3) | C23—C28—C27 | 122.5 (3) |
C4—C5—C8 | 120.1 (4) | C23—C28—N2 | 106.1 (3) |
C7—C6—C5 | 120.9 (3) | C27—C28—N2 | 131.4 (4) |
C7—C6—H6 | 119.5 | C30—C29—H29A | 109.5 |
C5—C6—H6 | 119.5 | C30—C29—H29B | 109.5 |
C6—C7—C2 | 120.1 (4) | H29A—C29—H29B | 109.5 |
C6—C7—H7 | 120.0 | C30—C29—H29C | 109.5 |
C2—C7—H7 | 120.0 | H29A—C29—H29C | 109.5 |
N4—C8—N3 | 108.6 (3) | H29B—C29—H29C | 109.5 |
N4—C8—C5 | 126.0 (3) | O1—C30—C29 | 108.9 (2) |
N3—C8—C5 | 125.4 (4) | O1—C30—H30A | 109.9 |
N4—C9—C14 | 131.7 (4) | C29—C30—H30A | 109.9 |
N4—C9—C10 | 106.7 (3) | O1—C30—H30B | 109.9 |
C14—C9—C10 | 121.6 (4) | C29—C30—H30B | 109.9 |
C9—C10—C11 | 122.1 (4) | H30A—C30—H30B | 108.3 |
C9—C10—N3 | 106.0 (3) | ||
Br2—Cd1—Br4A—Br4C | 118.8 (7) | C8—N4—C9—C14 | 178.9 (4) |
Br1—Cd1—Br4A—Br4C | −117.7 (7) | C8—N4—C9—C10 | −0.2 (4) |
Br3—Cd1—Br4A—Br4C | 0.0 (7) | N4—C9—C10—C11 | 178.3 (3) |
Br4B—Cd1—Br4A—Br4C | 140.1 (8) | C14—C9—C10—C11 | −1.0 (6) |
Br2—Cd1—Br4A—Br4B | −21.3 (4) | N4—C9—C10—N3 | −0.2 (4) |
Br1—Cd1—Br4A—Br4B | 102.2 (4) | C14—C9—C10—N3 | −179.4 (4) |
Br3—Cd1—Br4A—Br4B | −140.1 (4) | C8—N3—C10—C9 | 0.6 (4) |
Br4C—Cd1—Br4A—Br4B | −140.1 (8) | C8—N3—C10—C11 | −177.7 (4) |
Cd1—Br4A—Br4B—Br4C | 93.9 (10) | C9—C10—C11—C12 | 0.1 (6) |
Br4C—Br4A—Br4B—Cd1 | −93.9 (10) | N3—C10—C11—C12 | 178.1 (4) |
Br2—Cd1—Br4B—Br4A | 160.2 (4) | C10—C11—C12—C13 | 0.8 (6) |
Br1—Cd1—Br4B—Br4A | −84.7 (4) | C11—C12—C13—C14 | −0.8 (6) |
Br3—Cd1—Br4B—Br4A | 45.3 (4) | C12—C13—C14—C9 | −0.1 (6) |
Br4C—Cd1—Br4B—Br4A | 18.6 (5) | N4—C9—C14—C13 | −178.1 (4) |
Br4A—Cd1—Br4B—Br4C | −18.6 (5) | C10—C9—C14—C13 | 0.9 (6) |
Br2—Cd1—Br4B—Br4C | 141.6 (4) | C15—S1—C16—C17 | −1.4 (4) |
Br1—Cd1—Br4B—Br4C | −103.3 (4) | C15—S1—C16—C21 | 178.5 (3) |
Br3—Cd1—Br4B—Br4C | 26.7 (5) | C21—C16—C17—C18 | 0.0 (6) |
Cd1—Br4A—Br4C—Br4B | −91.1 (9) | S1—C16—C17—C18 | 179.9 (3) |
Br4B—Br4A—Br4C—Cd1 | 91.1 (9) | C16—C17—C18—C19 | 0.4 (6) |
Cd1—Br4B—Br4C—Br4A | 81.9 (10) | C17—C18—C19—C20 | −0.6 (6) |
Br4A—Br4B—Br4C—Cd1 | −81.9 (10) | C17—C18—C19—C22 | −178.8 (3) |
Br2—Cd1—Br4C—Br4A | −67.1 (7) | C18—C19—C20—C21 | 0.3 (6) |
Br1—Cd1—Br4C—Br4A | 68.0 (7) | C22—C19—C20—C21 | 178.6 (4) |
Br3—Cd1—Br4C—Br4A | −180.0 (7) | C19—C20—C21—C16 | 0.1 (6) |
Br4B—Cd1—Br4C—Br4A | −22.6 (5) | C17—C16—C21—C20 | −0.3 (6) |
Br4A—Cd1—Br4C—Br4B | 22.6 (5) | S1—C16—C21—C20 | 179.8 (3) |
Br2—Cd1—Br4C—Br4B | −44.5 (5) | C28—N2—C22—N1 | −0.6 (4) |
Br1—Cd1—Br4C—Br4B | 90.6 (4) | C28—N2—C22—C19 | −179.7 (3) |
Br3—Cd1—Br4C—Br4B | −157.4 (4) | C23—N1—C22—N2 | 0.8 (4) |
C1—S2—C2—C3 | 1.6 (4) | C23—N1—C22—C19 | 179.9 (3) |
C1—S2—C2—C7 | −178.1 (3) | C18—C19—C22—N2 | 9.0 (6) |
C7—C2—C3—C4 | −0.6 (6) | C20—C19—C22—N2 | −169.2 (4) |
S2—C2—C3—C4 | 179.7 (3) | C18—C19—C22—N1 | −169.9 (4) |
C2—C3—C4—C5 | 1.0 (6) | C20—C19—C22—N1 | 11.8 (6) |
C3—C4—C5—C6 | −0.9 (6) | C22—N1—C23—C28 | −0.7 (4) |
C3—C4—C5—C8 | 178.5 (3) | C22—N1—C23—C24 | 179.1 (4) |
C4—C5—C6—C7 | 0.4 (6) | C28—C23—C24—C25 | 0.4 (6) |
C8—C5—C6—C7 | −179.0 (4) | N1—C23—C24—C25 | −179.4 (4) |
C5—C6—C7—C2 | 0.0 (6) | C23—C24—C25—C26 | −0.1 (6) |
C3—C2—C7—C6 | 0.1 (6) | C24—C25—C26—C27 | −0.2 (7) |
S2—C2—C7—C6 | 179.8 (3) | C25—C26—C27—C28 | 0.1 (6) |
C9—N4—C8—N3 | 0.6 (4) | N1—C23—C28—C27 | 179.3 (3) |
C9—N4—C8—C5 | −178.4 (4) | C24—C23—C28—C27 | −0.5 (6) |
C10—N3—C8—N4 | −0.8 (4) | N1—C23—C28—N2 | 0.3 (4) |
C10—N3—C8—C5 | 178.3 (3) | C24—C23—C28—N2 | −179.5 (4) |
C6—C5—C8—N4 | 179.6 (4) | C26—C27—C28—C23 | 0.2 (6) |
C4—C5—C8—N4 | 0.2 (6) | C26—C27—C28—N2 | 178.9 (4) |
C6—C5—C8—N3 | 0.8 (6) | C22—N2—C28—C23 | 0.2 (4) |
C4—C5—C8—N3 | −178.6 (4) | C22—N2—C28—C27 | −178.7 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···Br3 | 0.79 (7) | 2.51 (7) | 3.272 (5) | 164 (5) |
N2—H2N···Br2i | 0.81 (7) | 2.50 (7) | 3.267 (4) | 160 (5) |
N4—H4N···O1ii | 0.83 (7) | 1.88 (7) | 2.679 (6) | 161 (6) |
C4—H4···O1ii | 0.95 | 2.55 | 3.464 (8) | 160 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x+1/2, y, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | (C14H13N2S)2[CdBr4]·C2H6O |
Mr | 960.76 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 123 |
a, b, c (Å) | 22.1321 (15), 13.8746 (10), 22.2594 (16) |
V (Å3) | 6835.3 (8) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 5.47 |
Crystal size (mm) | 0.20 × 0.18 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.408, 0.439 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 93968, 7467, 5951 |
Rint | 0.084 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.079, 0.79 |
No. of reflections | 7467 |
No. of parameters | 407 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
w = 1/[σ2(Fo2) + (0.0318P)2 + 49.2262P] where P = (Fo2 + 2Fc2)/3 | |
Δρmax, Δρmin (e Å−3) | 0.87, −0.69 |
Computer programs: SMART (Bruker, 1998), SAINT-Plus (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and CAMERON (Watkin et al., 1996), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···Br3 | 0.79 (7) | 2.51 (7) | 3.272 (5) | 164 (5) |
N2—H2N···Br2i | 0.81 (7) | 2.50 (7) | 3.267 (4) | 160 (5) |
N4—H4N···O1ii | 0.83 (7) | 1.88 (7) | 2.679 (6) | 161 (6) |
C4—H4···O1ii | 0.950 | 2.554 | 3.464 (8) | 160 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x+1/2, y, −z+1/2. |
Acknowledgements
NSB is thankful to the University Grants Commission (UGC), India, for financial assistance and Department of Science and Technology, (DST), India, for the data collection facility under the IRHPA–DST program. MNM thanks the M. S. Ramaiah Institute of Technology, Bangalore, for their support and encouragement.
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Benzimidazole derivatives are effective against the human cytomegalo virus (HCMV) (Zhu et al., 2000) and are also efficient selective neuropeptide Y Y1 receptor antagonists (Zarrinmayeh et al., 1998). In addition, benzimidazole derivatives exhibit a number of important pharmacological properties, such as antihistaminic, anti-ulcerative, antiallergic and antipyretic. The described methods for the synthesis of benzimidazoles make use of solid-phase synthesis via o-nitroanilines (Preston et al., 1974; Huang et al., 1999) or the condensation of o-phenylenediamines with carboxylic acid derivatives, aldehydes and aryl halides. The benzimidazole derivative has been used as a ligand for complexation with cadmium metal to give the above metal complex. In the title compound, as shown in Fig. 1, there are two cation,one tetrabormocadmate(II) anion and an ethanol molecule in the asymmetric unit. One of the coordinated bromine atom Br4 of the anion is disordered over three sites (Br4A/Br4B/Br4C) with site occupancy factors 0.83, 0,11 and 0.06 resulting in one major and two minor components.The CdII atom has a distorted tetrahedral geometry, coordinating with four terminal bromine atoms with the bond lengths in the range 2.5616 (7)Å to 2.6177 (6) Å. The Br—Cd—Br bond angles are between 111.37 (3)° and 107.14 (2)°, The benzimidazole and thiomethyl phenyl rings are virtually planar and inclined at an dihedral angle 5.19 (2)°. The molecular structure is primarly stablised by intramolecular N—H···Br interactions. The bond lengths and angles for the benzimidazole moiety of the molecule are in good agreement, within experimental errors, with those observed in other benzimidazole derivatives (Ziaulla et al., 2011). Further, the crystal structure is stabilized by intermolecular N—H···O, C—H···O and N—H···Br hydrogen bonds.