Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807050209/bi2244sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807050209/bi2244Isup2.hkl |
CCDC reference: 667372
Key indicators
- Single-crystal X-ray study
- T = 298 K
- Mean (C-C) = 0.011 Å
- R factor = 0.044
- wR factor = 0.122
- Data-to-parameter ratio = 15.0
checkCIF/PLATON results
No syntax errors found
Alert level B PLAT026_ALERT_3_B Ratio Observed / Unique Reflections too Low .... 32 Perc. PLAT331_ALERT_2_B Small Average Phenyl C-C Dist. C25 -C30 1.36 Ang.
Alert level C GOODF01_ALERT_2_C The least squares goodness of fit parameter lies outside the range 0.80 <> 2.00 Goodness of fit given = 0.792 RINTA01_ALERT_3_C The value of Rint is greater than 0.10 Rint given 0.105 PLAT020_ALERT_3_C The value of Rint is greater than 0.10 ......... 0.10 PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.98 PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for C9 PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for C26 PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for C27 PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C8 PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C10 PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C16 PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C25 PLAT242_ALERT_2_C Check Low Ueq as Compared to Neighbors for C28 PLAT331_ALERT_2_C Small Average Phenyl C-C Dist. C10 -C15 1.37 Ang. PLAT341_ALERT_3_C Low Bond Precision on C-C Bonds (x 1000) Ang ... 11
0 ALERT level A = In general: serious problem 2 ALERT level B = Potentially serious problem 14 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 11 ALERT type 2 Indicator that the structure model may be wrong or deficient 5 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
For related Schiff base structures, see: Qiu, Fang et al. (2006); Qiu, Luo, et al. (2006).
The title compound was synthesized by reaction of equivalent amounts of S-benzyldithiocarbazate (1 mmol, 0.20 g) and 2-bromobenzaldehyde (1 mmol, 0.19 g) in ethanol (20 ml) for 1 h at 373–383 K. Single crystals suitable for X-ray diffraction analysis were obtained by slow evaporation of an ethanol solution.
Atoms H2 and H4 were visible in a difference Fourier map, but were placed in calculated positions (N—H = 0.86 Å) and refined as riding with Uiso(H) = 1.2Ueq(N). All other H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms with C—H distances of 0.93 or 0.97 Å and with Uiso(H) = 1.2Ueq(C). The higher-angle diffraction data were weak, with only 1750 out of 5399 unique reflections observed (I > 2σ(I)) to θmax = 25.0°, and the resulting structure is of relatively low precision.
As an extension of our work on the structural characterization of Schiff-base compounds (Qiu, Fang et al., 2006; Qiu, Luo et al., 2006), we report here the crystal structure of the title compound. The asymmetric unit consists of two independent molecules (Fig. 1), both of which display a "C-shaped" conformation. In both independent molecules, all bond lengths and angles lie within normal ranges: the C7=N1 and C22=N3 bond lengths of 1.272 (7) and 1.257 (7) Å conform to the expected value for a C=N double bond. The bond lengths of 1.324 (6) and 1.338 (7) Å for C8—N2 and C23—N4, respectively, lie between the expected values for a double and single bond, because of conjugation effects in the molecule. The dihedral angle between the two benzene rings in each molecule is 107.9 (6) and 105.1 (6) ° for the two independent molecules, respectively. In the crystal, intermolecular N—H···S interactions are observed.
For related Schiff base structures, see: Qiu, Fang et al. (2006); Qiu, Luo, et al. (2006).
Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1997); software used to prepare material for publication: SHELXTL (Bruker, 1997).
Fig. 1. The molecular structure of the title compound showing displacement ellipsoids at 30% for non-H atoms. Dashed lines denote N—H···S hydrogen bonds. |
C15H13BrN2S2 | F(000) = 1472 |
Mr = 365.30 | Dx = 1.540 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3876 reflections |
a = 22.465 (6) Å | θ = 4.2–25° |
b = 5.9323 (17) Å | µ = 2.86 mm−1 |
c = 23.668 (7) Å | T = 298 K |
β = 92.432 (5)° | Block, yellow |
V = 3151.4 (16) Å3 | 0.12 × 0.07 × 0.06 mm |
Z = 8 |
Bruker SMART APEX CCD diffractometer | 5399 independent reflections |
Radiation source: fine-focus sealed tube | 1750 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.105 |
ω scans | θmax = 25.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −26→26 |
Tmin = 0.725, Tmax = 0.847 | k = −6→6 |
17549 measured reflections | l = −28→27 |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 0.79 | w = 1/[σ2(Fo2) + (0.0502P)2] where P = (Fo2 + 2Fc2)/3 |
5399 reflections | (Δ/σ)max = 0.001 |
361 parameters | Δρmax = 0.26 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
C15H13BrN2S2 | V = 3151.4 (16) Å3 |
Mr = 365.30 | Z = 8 |
Monoclinic, P21/n | Mo Kα radiation |
a = 22.465 (6) Å | µ = 2.86 mm−1 |
b = 5.9323 (17) Å | T = 298 K |
c = 23.668 (7) Å | 0.12 × 0.07 × 0.06 mm |
β = 92.432 (5)° |
Bruker SMART APEX CCD diffractometer | 5399 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1750 reflections with I > 2σ(I) |
Tmin = 0.725, Tmax = 0.847 | Rint = 0.105 |
17549 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 0.79 | Δρmax = 0.26 e Å−3 |
5399 reflections | Δρmin = −0.31 e Å−3 |
361 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 | ||
Br1 | 0.38156 (4) | 0.81077 (15) | 1.06812 (3) | 0.1124 (4) | |
Br2 | 0.43680 (3) | 1.27449 (14) | 0.61505 (4) | 0.1031 (3) | |
C1 | 0.3175 (3) | 0.7293 (14) | 1.0175 (3) | 0.077 (2) | |
C2 | 0.3203 (3) | 0.5446 (11) | 0.9824 (3) | 0.0654 (18) | |
C3 | 0.2709 (3) | 0.4962 (12) | 0.9467 (3) | 0.083 (2) | |
H3A | 0.2711 | 0.3699 | 0.9234 | 0.099* | |
C4 | 0.2221 (3) | 0.6354 (15) | 0.9459 (3) | 0.102 (3) | |
H4A | 0.1900 | 0.6046 | 0.9210 | 0.123* | |
C5 | 0.2195 (4) | 0.8175 (14) | 0.9808 (3) | 0.101 (3) | |
H5A | 0.1856 | 0.9074 | 0.9811 | 0.122* | |
C6 | 0.2683 (4) | 0.8640 (13) | 1.0155 (3) | 0.098 (2) | |
H6A | 0.2679 | 0.9915 | 1.0383 | 0.117* | |
C7 | 0.3727 (3) | 0.3955 (12) | 0.9836 (3) | 0.0703 (19) | |
H7A | 0.4027 | 0.4135 | 1.0115 | 0.084* | |
C8 | 0.4342 (2) | −0.0640 (12) | 0.9179 (2) | 0.0659 (18) | |
C9 | 0.4007 (3) | −0.3370 (11) | 0.8268 (3) | 0.085 (2) | |
H9A | 0.4418 | −0.3170 | 0.8168 | 0.102* | |
H9B | 0.3984 | −0.4707 | 0.8502 | 0.102* | |
C10 | 0.3617 (3) | −0.3658 (12) | 0.7741 (3) | 0.0601 (17) | |
C11 | 0.3642 (3) | −0.2141 (12) | 0.7310 (3) | 0.082 (2) | |
H11A | 0.3881 | −0.0868 | 0.7353 | 0.098* | |
C12 | 0.3316 (4) | −0.2477 (14) | 0.6813 (3) | 0.101 (3) | |
H12A | 0.3339 | −0.1448 | 0.6518 | 0.121* | |
C13 | 0.2960 (3) | −0.4325 (18) | 0.6755 (3) | 0.100 (3) | |
H13A | 0.2736 | −0.4542 | 0.6420 | 0.120* | |
C14 | 0.2928 (3) | −0.5855 (13) | 0.7178 (4) | 0.091 (2) | |
H14A | 0.2681 | −0.7108 | 0.7134 | 0.110* | |
C15 | 0.3257 (3) | −0.5547 (12) | 0.7667 (3) | 0.075 (2) | |
H15A | 0.3241 | −0.6611 | 0.7955 | 0.090* | |
C16 | 0.4832 (3) | 1.1731 (14) | 0.6791 (3) | 0.0723 (19) | |
C17 | 0.5172 (3) | 0.9776 (13) | 0.6768 (3) | 0.075 (2) | |
C18 | 0.5487 (3) | 0.9139 (13) | 0.7264 (3) | 0.095 (2) | |
H18A | 0.5725 | 0.7855 | 0.7268 | 0.114* | |
C19 | 0.5445 (4) | 1.0426 (17) | 0.7755 (3) | 0.109 (3) | |
H19A | 0.5650 | 0.9970 | 0.8085 | 0.131* | |
C20 | 0.5111 (4) | 1.2324 (16) | 0.7760 (3) | 0.106 (3) | |
H20A | 0.5088 | 1.3171 | 0.8088 | 0.128* | |
C21 | 0.4808 (3) | 1.2978 (12) | 0.7275 (4) | 0.092 (2) | |
H21A | 0.4581 | 1.4291 | 0.7274 | 0.110* | |
C22 | 0.5213 (3) | 0.8447 (12) | 0.6253 (3) | 0.071 (2) | |
H22A | 0.4955 | 0.8756 | 0.5946 | 0.085* | |
C23 | 0.5898 (3) | 0.3934 (12) | 0.5621 (2) | 0.0720 (19) | |
C24 | 0.6815 (3) | 0.0966 (11) | 0.5928 (2) | 0.080 (2) | |
H24A | 0.6555 | −0.0333 | 0.5882 | 0.096* | |
H24B | 0.6974 | 0.1321 | 0.5563 | 0.096* | |
C25 | 0.7320 (3) | 0.0452 (14) | 0.6356 (3) | 0.075 (2) | |
C26 | 0.7806 (4) | 0.1761 (14) | 0.6396 (3) | 0.127 (3) | |
H26A | 0.7831 | 0.3018 | 0.6163 | 0.153* | |
C27 | 0.8270 (4) | 0.1273 (18) | 0.6777 (4) | 0.144 (4) | |
H27A | 0.8600 | 0.2217 | 0.6803 | 0.173* | |
C28 | 0.8248 (4) | −0.0578 (18) | 0.7116 (3) | 0.110 (3) | |
H28A | 0.8560 | −0.0904 | 0.7374 | 0.133* | |
C29 | 0.7776 (5) | −0.1902 (14) | 0.7070 (3) | 0.111 (3) | |
H29A | 0.7761 | −0.3192 | 0.7293 | 0.133* | |
C30 | 0.7304 (3) | −0.1405 (13) | 0.6698 (3) | 0.084 (2) | |
H30A | 0.6972 | −0.2341 | 0.6680 | 0.101* | |
N1 | 0.3769 (2) | 0.2421 (10) | 0.9464 (2) | 0.0724 (15) | |
N2 | 0.4263 (2) | 0.1106 (10) | 0.9516 (2) | 0.0770 (16) | |
H2 | 0.4532 | 0.1415 | 0.9774 | 0.092* | |
N3 | 0.5589 (2) | 0.6892 (10) | 0.6216 (2) | 0.0774 (17) | |
N4 | 0.5567 (2) | 0.5759 (10) | 0.5714 (2) | 0.0795 (17) | |
H4 | 0.5329 | 0.6239 | 0.5446 | 0.095* | |
S1 | 0.49163 (8) | −0.2385 (3) | 0.92583 (7) | 0.0950 (7) | |
S2 | 0.37642 (7) | −0.0936 (3) | 0.86578 (7) | 0.0773 (6) | |
S3 | 0.58178 (8) | 0.2452 (3) | 0.50331 (7) | 0.0931 (6) | |
S4 | 0.64041 (7) | 0.3345 (3) | 0.61861 (7) | 0.0773 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.1210 (7) | 0.1233 (8) | 0.0901 (6) | 0.0066 (6) | −0.0297 (5) | −0.0369 (5) |
Br2 | 0.0768 (5) | 0.1047 (7) | 0.1263 (7) | 0.0116 (5) | −0.0130 (5) | 0.0037 (5) |
C1 | 0.080 (5) | 0.100 (7) | 0.052 (4) | 0.017 (5) | 0.001 (4) | −0.007 (4) |
C2 | 0.084 (5) | 0.058 (5) | 0.053 (4) | 0.017 (4) | −0.006 (4) | −0.004 (4) |
C3 | 0.083 (5) | 0.091 (6) | 0.072 (5) | 0.005 (5) | −0.016 (4) | −0.027 (4) |
C4 | 0.079 (6) | 0.107 (7) | 0.118 (7) | 0.039 (5) | −0.022 (5) | −0.008 (6) |
C5 | 0.100 (7) | 0.087 (7) | 0.117 (7) | 0.044 (5) | −0.002 (5) | −0.019 (5) |
C6 | 0.112 (7) | 0.096 (7) | 0.083 (6) | 0.020 (6) | −0.004 (5) | −0.027 (5) |
C7 | 0.074 (5) | 0.065 (5) | 0.071 (5) | 0.007 (4) | −0.014 (4) | 0.004 (4) |
C8 | 0.051 (4) | 0.082 (5) | 0.064 (4) | 0.013 (4) | −0.013 (3) | −0.012 (4) |
C9 | 0.074 (5) | 0.084 (5) | 0.095 (5) | 0.026 (4) | −0.018 (4) | −0.022 (4) |
C10 | 0.063 (4) | 0.057 (5) | 0.060 (5) | 0.014 (4) | −0.004 (4) | −0.002 (4) |
C11 | 0.092 (5) | 0.080 (6) | 0.073 (5) | −0.024 (4) | −0.009 (4) | 0.005 (5) |
C12 | 0.129 (7) | 0.091 (7) | 0.082 (6) | 0.004 (6) | −0.005 (5) | 0.018 (5) |
C13 | 0.097 (7) | 0.128 (9) | 0.071 (6) | 0.023 (6) | −0.031 (5) | −0.027 (6) |
C14 | 0.067 (5) | 0.077 (6) | 0.127 (7) | −0.009 (4) | −0.023 (5) | −0.012 (6) |
C15 | 0.084 (5) | 0.057 (6) | 0.084 (6) | −0.001 (4) | −0.001 (4) | 0.013 (4) |
C16 | 0.062 (5) | 0.069 (6) | 0.085 (6) | −0.019 (4) | 0.001 (4) | −0.007 (5) |
C17 | 0.078 (5) | 0.065 (6) | 0.082 (6) | −0.005 (4) | −0.002 (5) | −0.012 (5) |
C18 | 0.103 (6) | 0.090 (6) | 0.091 (6) | 0.022 (5) | −0.018 (5) | −0.011 (5) |
C19 | 0.124 (7) | 0.122 (8) | 0.079 (6) | 0.014 (6) | −0.023 (5) | −0.026 (6) |
C20 | 0.109 (7) | 0.116 (8) | 0.093 (7) | 0.023 (6) | −0.006 (5) | −0.030 (6) |
C21 | 0.072 (5) | 0.083 (6) | 0.121 (7) | 0.000 (4) | 0.003 (5) | −0.010 (6) |
C22 | 0.063 (5) | 0.077 (6) | 0.070 (5) | −0.008 (4) | −0.014 (4) | −0.003 (4) |
C23 | 0.075 (5) | 0.078 (6) | 0.061 (4) | −0.012 (4) | −0.014 (4) | −0.009 (4) |
C24 | 0.087 (5) | 0.079 (5) | 0.073 (5) | 0.001 (4) | −0.008 (4) | −0.013 (4) |
C25 | 0.080 (6) | 0.071 (6) | 0.074 (5) | −0.003 (5) | −0.007 (4) | −0.010 (5) |
C26 | 0.123 (7) | 0.142 (8) | 0.112 (7) | −0.056 (7) | −0.055 (6) | 0.060 (6) |
C27 | 0.107 (7) | 0.183 (11) | 0.138 (8) | −0.075 (7) | −0.055 (6) | 0.060 (7) |
C28 | 0.100 (7) | 0.132 (9) | 0.097 (7) | 0.031 (6) | −0.026 (6) | 0.006 (6) |
C29 | 0.149 (9) | 0.088 (7) | 0.092 (6) | 0.008 (7) | −0.028 (6) | 0.021 (5) |
C30 | 0.090 (6) | 0.056 (6) | 0.106 (6) | −0.011 (4) | 0.004 (5) | −0.005 (5) |
N1 | 0.072 (4) | 0.071 (4) | 0.072 (4) | 0.026 (3) | −0.018 (3) | −0.016 (3) |
N2 | 0.061 (4) | 0.087 (5) | 0.081 (4) | 0.014 (3) | −0.025 (3) | −0.023 (3) |
N3 | 0.071 (4) | 0.081 (5) | 0.080 (4) | 0.004 (3) | −0.004 (3) | −0.010 (4) |
N4 | 0.088 (4) | 0.082 (5) | 0.067 (4) | 0.009 (4) | −0.021 (3) | −0.016 (4) |
S1 | 0.0782 (13) | 0.1111 (17) | 0.0922 (14) | 0.0329 (12) | −0.0366 (11) | −0.0305 (12) |
S2 | 0.0734 (12) | 0.0855 (14) | 0.0711 (11) | 0.0169 (10) | −0.0206 (9) | −0.0137 (10) |
S3 | 0.0904 (13) | 0.1104 (17) | 0.0763 (12) | 0.0126 (12) | −0.0227 (10) | −0.0276 (12) |
S4 | 0.0794 (12) | 0.0836 (14) | 0.0674 (11) | −0.0011 (10) | −0.0161 (9) | −0.0111 (10) |
Br1—C1 | 1.895 (7) | C16—C17 | 1.391 (8) |
Br2—C16 | 1.901 (7) | C17—C18 | 1.397 (8) |
C1—C6 | 1.363 (8) | C17—C22 | 1.457 (8) |
C1—C2 | 1.379 (8) | C18—C19 | 1.397 (8) |
C2—C3 | 1.396 (7) | C18—H18A | 0.930 |
C2—C7 | 1.471 (8) | C19—C20 | 1.353 (9) |
C3—C4 | 1.372 (8) | C19—H19A | 0.930 |
C3—H3A | 0.930 | C20—C21 | 1.366 (9) |
C4—C5 | 1.362 (9) | C20—H20A | 0.930 |
C4—H4A | 0.930 | C21—H21A | 0.930 |
C5—C6 | 1.370 (8) | C22—N3 | 1.257 (7) |
C5—H5A | 0.930 | C22—H22A | 0.930 |
C6—H6A | 0.930 | C23—N4 | 1.338 (7) |
C7—N1 | 1.272 (7) | C23—S3 | 1.650 (6) |
C7—H7A | 0.930 | C23—S4 | 1.752 (6) |
C8—N2 | 1.324 (6) | C24—C25 | 1.520 (8) |
C8—S1 | 1.659 (6) | C24—S4 | 1.808 (6) |
C8—S2 | 1.761 (5) | C24—H24A | 0.970 |
C9—C10 | 1.502 (7) | C24—H24B | 0.970 |
C9—S2 | 1.810 (6) | C25—C26 | 1.339 (8) |
C9—H9A | 0.970 | C25—C30 | 1.369 (8) |
C9—H9B | 0.970 | C26—C27 | 1.381 (9) |
C10—C11 | 1.363 (8) | C26—H26A | 0.930 |
C10—C15 | 1.389 (8) | C27—C28 | 1.361 (10) |
C11—C12 | 1.373 (9) | C27—H27A | 0.930 |
C11—H11A | 0.930 | C28—C29 | 1.320 (10) |
C12—C13 | 1.360 (9) | C28—H28A | 0.930 |
C12—H12A | 0.930 | C29—C30 | 1.381 (9) |
C13—C14 | 1.356 (9) | C29—H29A | 0.930 |
C13—H13A | 0.930 | C30—H30A | 0.930 |
C14—C15 | 1.359 (8) | N1—N2 | 1.359 (6) |
C14—H14A | 0.930 | N2—H2 | 0.860 |
C15—H15A | 0.930 | N3—N4 | 1.364 (6) |
C16—C21 | 1.366 (8) | N4—H4 | 0.860 |
C6—C1—C2 | 120.1 (6) | C18—C17—C22 | 120.6 (7) |
C6—C1—Br1 | 117.8 (6) | C17—C18—C19 | 120.1 (7) |
C2—C1—Br1 | 122.1 (6) | C17—C18—H18A | 119.9 |
C1—C2—C3 | 118.2 (6) | C19—C18—H18A | 119.9 |
C1—C2—C7 | 121.5 (7) | C20—C19—C18 | 121.2 (8) |
C3—C2—C7 | 120.2 (6) | C20—C19—H19A | 119.4 |
C4—C3—C2 | 119.9 (7) | C18—C19—H19A | 119.4 |
C4—C3—H3A | 120.0 | C19—C20—C21 | 119.2 (8) |
C2—C3—H3A | 120.0 | C19—C20—H20A | 120.4 |
C5—C4—C3 | 121.6 (7) | C21—C20—H20A | 120.4 |
C5—C4—H4A | 119.2 | C20—C21—C16 | 120.9 (7) |
C3—C4—H4A | 119.2 | C20—C21—H21A | 119.5 |
C4—C5—C6 | 117.9 (7) | C16—C21—H21A | 119.5 |
C4—C5—H5A | 121.0 | N3—C22—C17 | 121.5 (7) |
C6—C5—H5A | 121.0 | N3—C22—H22A | 119.2 |
C1—C6—C5 | 122.1 (7) | C17—C22—H22A | 119.2 |
C1—C6—H6A | 119.0 | N4—C23—S3 | 121.8 (5) |
C5—C6—H6A | 119.0 | N4—C23—S4 | 112.6 (5) |
N1—C7—C2 | 119.9 (6) | S3—C23—S4 | 125.6 (5) |
N1—C7—H7A | 120.0 | C25—C24—S4 | 108.0 (4) |
C2—C7—H7A | 120.0 | C25—C24—H24A | 110.1 |
N2—C8—S1 | 122.9 (5) | S4—C24—H24A | 110.1 |
N2—C8—S2 | 112.8 (4) | C25—C24—H24B | 110.1 |
S1—C8—S2 | 124.3 (4) | S4—C24—H24B | 110.1 |
C10—C9—S2 | 109.7 (4) | H24A—C24—H24B | 108.4 |
C10—C9—H9A | 109.7 | C26—C25—C30 | 117.9 (7) |
S2—C9—H9A | 109.7 | C26—C25—C24 | 120.9 (8) |
C10—C9—H9B | 109.7 | C30—C25—C24 | 121.2 (7) |
S2—C9—H9B | 109.7 | C25—C26—C27 | 121.0 (8) |
H9A—C9—H9B | 108.2 | C25—C26—H26A | 119.5 |
C11—C10—C15 | 118.7 (6) | C27—C26—H26A | 119.5 |
C11—C10—C9 | 120.3 (7) | C28—C27—C26 | 120.6 (8) |
C15—C10—C9 | 120.8 (7) | C28—C27—H27A | 119.7 |
C10—C11—C12 | 120.5 (7) | C26—C27—H27A | 119.7 |
C10—C11—H11A | 119.7 | C29—C28—C27 | 118.8 (8) |
C12—C11—H11A | 119.7 | C29—C28—H28A | 120.6 |
C13—C12—C11 | 119.5 (7) | C27—C28—H28A | 120.6 |
C13—C12—H12A | 120.2 | C28—C29—C30 | 121.1 (8) |
C11—C12—H12A | 120.2 | C28—C29—H29A | 119.4 |
C14—C13—C12 | 121.0 (8) | C30—C29—H29A | 119.4 |
C14—C13—H13A | 119.5 | C25—C30—C29 | 120.7 (7) |
C12—C13—H13A | 119.5 | C25—C30—H30A | 119.7 |
C13—C14—C15 | 119.6 (7) | C29—C30—H30A | 119.7 |
C13—C14—H14A | 120.2 | C7—N1—N2 | 115.6 (5) |
C15—C14—H14A | 120.2 | C8—N2—N1 | 121.6 (5) |
C14—C15—C10 | 120.6 (6) | C8—N2—H2 | 119.2 |
C14—C15—H15A | 119.7 | N1—N2—H2 | 119.2 |
C10—C15—H15A | 119.7 | C22—N3—N4 | 115.0 (6) |
C21—C16—C17 | 121.7 (7) | C23—N4—N3 | 122.8 (6) |
C21—C16—Br2 | 117.2 (7) | C23—N4—H4 | 118.6 |
C17—C16—Br2 | 121.1 (6) | N3—N4—H4 | 118.6 |
C16—C17—C18 | 116.9 (7) | C8—S2—C9 | 102.0 (3) |
C16—C17—C22 | 122.5 (7) | C23—S4—C24 | 102.8 (3) |
C6—C1—C2—C3 | −2.4 (10) | C18—C19—C20—C21 | 0.4 (13) |
Br1—C1—C2—C3 | 179.6 (5) | C19—C20—C21—C16 | 0.8 (12) |
C6—C1—C2—C7 | −179.9 (6) | C17—C16—C21—C20 | −1.1 (11) |
Br1—C1—C2—C7 | 2.1 (9) | Br2—C16—C21—C20 | 177.7 (6) |
C1—C2—C3—C4 | 2.1 (10) | C16—C17—C22—N3 | 169.0 (6) |
C7—C2—C3—C4 | 179.7 (6) | C18—C17—C22—N3 | −10.0 (10) |
C2—C3—C4—C5 | −2.3 (12) | S4—C24—C25—C26 | −75.2 (8) |
C3—C4—C5—C6 | 2.6 (13) | S4—C24—C25—C30 | 107.2 (6) |
C2—C1—C6—C5 | 2.8 (11) | C30—C25—C26—C27 | −1.1 (13) |
Br1—C1—C6—C5 | −179.1 (6) | C24—C25—C26—C27 | −178.8 (7) |
C4—C5—C6—C1 | −2.8 (12) | C25—C26—C27—C28 | 1.1 (15) |
C1—C2—C7—N1 | −172.1 (6) | C26—C27—C28—C29 | 0.3 (15) |
C3—C2—C7—N1 | 10.5 (10) | C27—C28—C29—C30 | −1.6 (14) |
S2—C9—C10—C11 | 68.9 (7) | C26—C25—C30—C29 | −0.2 (11) |
S2—C9—C10—C15 | −115.6 (6) | C24—C25—C30—C29 | 177.5 (6) |
C15—C10—C11—C12 | 0.0 (10) | C28—C29—C30—C25 | 1.6 (13) |
C9—C10—C11—C12 | 175.6 (6) | C2—C7—N1—N2 | −178.9 (5) |
C10—C11—C12—C13 | 0.9 (11) | S1—C8—N2—N1 | −175.6 (5) |
C11—C12—C13—C14 | −0.8 (12) | S2—C8—N2—N1 | 2.7 (8) |
C12—C13—C14—C15 | −0.3 (12) | C7—N1—N2—C8 | 175.6 (6) |
C13—C14—C15—C10 | 1.3 (11) | C17—C22—N3—N4 | 178.6 (5) |
C11—C10—C15—C14 | −1.2 (10) | S3—C23—N4—N3 | 174.1 (4) |
C9—C10—C15—C14 | −176.7 (6) | S4—C23—N4—N3 | −5.5 (8) |
C21—C16—C17—C18 | 0.2 (10) | C22—N3—N4—C23 | −173.9 (6) |
Br2—C16—C17—C18 | −178.5 (5) | N2—C8—S2—C9 | 178.8 (5) |
C21—C16—C17—C22 | −178.8 (6) | S1—C8—S2—C9 | −2.9 (5) |
Br2—C16—C17—C22 | 2.5 (9) | C10—C9—S2—C8 | −170.6 (5) |
C16—C17—C18—C19 | 0.9 (10) | N4—C23—S4—C24 | −176.3 (5) |
C22—C17—C18—C19 | 180.0 (7) | S3—C23—S4—C24 | 4.1 (5) |
C17—C18—C19—C20 | −1.2 (12) | C25—C24—S4—C23 | 173.6 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4···S3i | 0.86 | 2.88 | 3.669 (5) | 154 |
N2—H2···S1ii | 0.86 | 2.62 | 3.455 (5) | 164 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C15H13BrN2S2 |
Mr | 365.30 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 298 |
a, b, c (Å) | 22.465 (6), 5.9323 (17), 23.668 (7) |
β (°) | 92.432 (5) |
V (Å3) | 3151.4 (16) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 2.86 |
Crystal size (mm) | 0.12 × 0.07 × 0.06 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.725, 0.847 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17549, 5399, 1750 |
Rint | 0.105 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.122, 0.79 |
No. of reflections | 5399 |
No. of parameters | 361 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.31 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4···S3i | 0.86 | 2.88 | 3.669 (5) | 153.9 |
N2—H2···S1ii | 0.86 | 2.62 | 3.455 (5) | 163.5 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y, −z+2. |
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As an extension of our work on the structural characterization of Schiff-base compounds (Qiu, Fang et al., 2006; Qiu, Luo et al., 2006), we report here the crystal structure of the title compound. The asymmetric unit consists of two independent molecules (Fig. 1), both of which display a "C-shaped" conformation. In both independent molecules, all bond lengths and angles lie within normal ranges: the C7=N1 and C22=N3 bond lengths of 1.272 (7) and 1.257 (7) Å conform to the expected value for a C=N double bond. The bond lengths of 1.324 (6) and 1.338 (7) Å for C8—N2 and C23—N4, respectively, lie between the expected values for a double and single bond, because of conjugation effects in the molecule. The dihedral angle between the two benzene rings in each molecule is 107.9 (6) and 105.1 (6) ° for the two independent molecules, respectively. In the crystal, intermolecular N—H···S interactions are observed.