organic compounds
4-(4-Bromobenzylideneamino)-1-(diphenylaminomethyl)-3-[1-(4-isobutylphenyl)ethyl]-1H-1,2,4-triazole-5(4H)-thione
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri, Mangalore 574 199, India, and cDepartment of Studies in Physics, Mangalore University, Mangalagangotri, Mangalore 574 199, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C34H34BrN5S, the two phenyl rings of the diphenylaminomethyl group are inclined at an angle of 73.86 (8)° and they form dihedral angles of 74.04 (8) and 48.74 (8)° with the triazole ring. Intramolecular C—H⋯S hydrogen bonds generate S(6) and S(5) ring motifs. The is stabilized by weak C—H⋯π interactions.
Related literature
For related literature, see: Dave et al. (2007); Kalluraya et al. (2003, 2004, 2007); Kane et al. (1990). For literature on Mannich bases, see: Kalluraya et al. (2001). For bond-length data, see: Allen et al. (1987). For related literature on hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell APEX2; data reduction: SAINT (Bruker, 2005); 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 and PLATON (Spek, 2003).
Supporting information
10.1107/S1600536808012713/ci2592sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808012713/ci2592Isup2.hkl
The title compound, a Mannich base, was obtained by the aminomethylation of a Schiff base, 4-{[(4-bromophenyl)methylene]amino}-5-[1-(4-isobutylphenyl)ethyl]-3-mercapto- 1,2,4-triazole which was in turn obtained by refluxing 4-amino-3-mercapto-5- [1-(4-isobutylphenyl)ethyl]-1,2,4-triazole (0.01 mol) and 4-bromo benzaldehyde (0.01 mol) in ethanol (30 ml) by adding 2 drops of concentrated sulfuric acid for 3 h. A mixture of the obtained Schiff base (0.01 mol), formaldehyde (40%, 1 ml) and diphenyl amine (0.01 mol) in ethanol (50 ml) was stirred at room temperature for 16 h. The solid product was collected by filtration, washed with ethanol and dried. It was then recrystallized from ethanol. Crystals suitable for X-ray analysis were obtained from an acetone-N,N-dimethylformamide (DMF) (1:3) solution by slow evaporation (yield 68%; m.p. 381–382 K). Analysis (%) for C34H34N5BrS found (calculated): C 65.23 (65.38), H 5.33 (5.44), N 11.21 (11.17).
H atoms were positioned geometrically [C–H = 0.93–0.98 Å] and refined using a riding model, with Uiso(H) = 1.2–1.5Ueq(C). A rotating-group model was used for the methyl groups.
Data collection: APEX2 (Bruker, 2005); cell
APEX2 (Bruker, 2005); data reduction: SAINT (Bruker, 2005); 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) and PLATON (Spek, 2003).Fig. 1. The molecular structure of the title compound, showing 50% probability displacement ellipsoids and the atom-numbering scheme. Dashed lines indicate hydrogen bonds. |
C34H34BrN5S | F(000) = 1296 |
Mr = 624.63 | Dx = 1.405 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 8665 reflections |
a = 10.9672 (1) Å | θ = 2.2–29.2° |
b = 9.7833 (1) Å | µ = 1.50 mm−1 |
c = 28.6210 (3) Å | T = 100 K |
β = 105.966 (1)° | Block, colourless |
V = 2952.44 (5) Å3 | 0.35 × 0.31 × 0.27 mm |
Z = 4 |
Bruker SMART APEXII CCD area-detector diffractometer | 13248 independent reflections |
Radiation source: fine-focus sealed tube | 7914 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.059 |
ϕ and ω scans | θmax = 35.4°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −17→17 |
Tmin = 0.623, Tmax = 0.684 | k = −15→15 |
55283 measured reflections | l = −46→46 |
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) = 0.098 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0352P)2 + 0.5449P] where P = (Fo2 + 2Fc2)/3 |
13248 reflections | (Δ/σ)max = 0.001 |
372 parameters | Δρmax = 0.46 e Å−3 |
0 restraints | Δρmin = −0.57 e Å−3 |
C34H34BrN5S | V = 2952.44 (5) Å3 |
Mr = 624.63 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 10.9672 (1) Å | µ = 1.50 mm−1 |
b = 9.7833 (1) Å | T = 100 K |
c = 28.6210 (3) Å | 0.35 × 0.31 × 0.27 mm |
β = 105.966 (1)° |
Bruker SMART APEXII CCD area-detector diffractometer | 13248 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 7914 reflections with I > 2σ(I) |
Tmin = 0.623, Tmax = 0.684 | Rint = 0.059 |
55283 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.098 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.46 e Å−3 |
13248 reflections | Δρmin = −0.57 e Å−3 |
372 parameters |
Experimental. The data was collected with the Oxford Cyrosystem Cobra low-temperature attachment. |
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 | 0.543981 (15) | −0.004817 (17) | −0.133261 (6) | 0.02529 (5) | |
S1 | 0.15515 (5) | −0.27622 (4) | 0.091481 (16) | 0.02758 (10) | |
N1 | 0.11707 (12) | −0.00549 (12) | 0.06174 (4) | 0.0177 (2) | |
N2 | 0.01822 (12) | 0.07970 (13) | 0.11283 (5) | 0.0194 (3) | |
N3 | 0.05163 (13) | −0.05530 (13) | 0.12340 (4) | 0.0192 (3) | |
N4 | 0.05997 (13) | −0.03122 (13) | 0.20801 (5) | 0.0213 (3) | |
N5 | 0.16650 (12) | 0.00579 (12) | 0.02217 (4) | 0.0186 (2) | |
C1 | 0.11076 (15) | −0.11338 (15) | 0.09263 (5) | 0.0194 (3) | |
C2 | 0.05841 (14) | 0.10666 (15) | 0.07525 (5) | 0.0176 (3) | |
C3 | 0.25133 (14) | −0.08055 (15) | 0.01851 (5) | 0.0191 (3) | |
H3A | 0.2737 | −0.1521 | 0.0406 | 0.023* | |
C4 | 0.31254 (14) | −0.06601 (15) | −0.02038 (5) | 0.0170 (3) | |
C5 | 0.41316 (15) | −0.15262 (15) | −0.02088 (5) | 0.0193 (3) | |
H5A | 0.4342 | −0.2231 | 0.0017 | 0.023* | |
C6 | 0.48243 (15) | −0.13606 (15) | −0.05424 (5) | 0.0194 (3) | |
H6A | 0.5502 | −0.1935 | −0.0539 | 0.023* | |
C7 | 0.44857 (15) | −0.03203 (15) | −0.08809 (5) | 0.0194 (3) | |
C8 | 0.34706 (15) | 0.05398 (16) | −0.08930 (5) | 0.0202 (3) | |
H8A | 0.3250 | 0.1224 | −0.1127 | 0.024* | |
C9 | 0.27910 (15) | 0.03763 (15) | −0.05571 (5) | 0.0195 (3) | |
H9A | 0.2111 | 0.0951 | −0.0564 | 0.023* | |
C10 | 0.04978 (14) | 0.24247 (15) | 0.05043 (5) | 0.0196 (3) | |
H10A | 0.0236 | 0.2270 | 0.0152 | 0.023* | |
C11 | 0.17723 (14) | 0.31489 (14) | 0.06341 (5) | 0.0181 (3) | |
C12 | 0.21998 (15) | 0.37842 (15) | 0.02736 (5) | 0.0203 (3) | |
H12A | 0.1743 | 0.3683 | −0.0050 | 0.024* | |
C13 | 0.32967 (16) | 0.45656 (16) | 0.03905 (6) | 0.0220 (3) | |
H13A | 0.3565 | 0.4979 | 0.0143 | 0.026* | |
C14 | 0.40058 (15) | 0.47425 (15) | 0.08733 (6) | 0.0198 (3) | |
C15 | 0.35851 (15) | 0.40810 (16) | 0.12319 (6) | 0.0218 (3) | |
H15A | 0.4047 | 0.4170 | 0.1556 | 0.026* | |
C16 | 0.24913 (15) | 0.32926 (16) | 0.11149 (5) | 0.0208 (3) | |
H16A | 0.2235 | 0.2855 | 0.1361 | 0.025* | |
C17 | −0.05057 (16) | 0.33197 (16) | 0.06350 (6) | 0.0258 (3) | |
H17A | −0.1306 | 0.2851 | 0.0550 | 0.039* | |
H17B | −0.0586 | 0.4165 | 0.0459 | 0.039* | |
H17C | −0.0254 | 0.3504 | 0.0978 | 0.039* | |
C18 | 0.51856 (15) | 0.56133 (16) | 0.09975 (6) | 0.0228 (3) | |
H18A | 0.5288 | 0.6009 | 0.1317 | 0.027* | |
H18B | 0.5065 | 0.6360 | 0.0766 | 0.027* | |
C19 | 0.64115 (15) | 0.48568 (15) | 0.09976 (5) | 0.0193 (3) | |
H19A | 0.6274 | 0.4395 | 0.0683 | 0.023* | |
C20 | 0.74986 (16) | 0.58645 (16) | 0.10501 (6) | 0.0262 (3) | |
H20A | 0.7281 | 0.6517 | 0.0790 | 0.039* | |
H20B | 0.8250 | 0.5380 | 0.1038 | 0.039* | |
H20C | 0.7650 | 0.6332 | 0.1356 | 0.039* | |
C21 | 0.67544 (15) | 0.37717 (16) | 0.13955 (6) | 0.0227 (3) | |
H21A | 0.7493 | 0.3281 | 0.1371 | 0.034* | |
H21B | 0.6059 | 0.3147 | 0.1357 | 0.034* | |
H21C | 0.6927 | 0.4204 | 0.1708 | 0.034* | |
C22 | 0.02950 (16) | −0.12061 (16) | 0.16644 (5) | 0.0224 (3) | |
H22A | −0.0588 | −0.1475 | 0.1593 | 0.027* | |
H22B | 0.0808 | −0.2026 | 0.1740 | 0.027* | |
C23 | 0.18209 (15) | 0.02413 (15) | 0.22580 (5) | 0.0196 (3) | |
C24 | 0.29008 (16) | −0.04544 (17) | 0.22172 (6) | 0.0227 (3) | |
H24A | 0.2821 | −0.1297 | 0.2061 | 0.027* | |
C25 | 0.40981 (16) | 0.01206 (17) | 0.24111 (6) | 0.0258 (3) | |
H25A | 0.4816 | −0.0355 | 0.2391 | 0.031* | |
C26 | 0.42321 (16) | 0.13885 (18) | 0.26334 (6) | 0.0275 (4) | |
H26A | 0.5032 | 0.1768 | 0.2761 | 0.033* | |
C27 | 0.31547 (17) | 0.20828 (17) | 0.26626 (6) | 0.0275 (4) | |
H27A | 0.3236 | 0.2940 | 0.2808 | 0.033* | |
C28 | 0.19685 (15) | 0.15264 (16) | 0.24802 (6) | 0.0231 (3) | |
H28A | 0.1258 | 0.2009 | 0.2505 | 0.028* | |
C29 | −0.03703 (14) | 0.00563 (15) | 0.22995 (5) | 0.0183 (3) | |
C30 | −0.14889 (15) | 0.06584 (17) | 0.20375 (6) | 0.0234 (3) | |
H30A | −0.1623 | 0.0840 | 0.1708 | 0.028* | |
C31 | −0.24132 (15) | 0.09931 (17) | 0.22671 (6) | 0.0252 (3) | |
H31A | −0.3170 | 0.1389 | 0.2090 | 0.030* | |
C32 | −0.22099 (15) | 0.07391 (16) | 0.27591 (6) | 0.0238 (3) | |
H32A | −0.2830 | 0.0962 | 0.2912 | 0.029* | |
C33 | −0.10801 (15) | 0.01518 (15) | 0.30232 (6) | 0.0222 (3) | |
H33A | −0.0938 | −0.0006 | 0.3354 | 0.027* | |
C34 | −0.01663 (15) | −0.01996 (15) | 0.27969 (6) | 0.0207 (3) | |
H34A | 0.0585 | −0.0606 | 0.2974 | 0.025* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.02348 (8) | 0.03478 (9) | 0.01983 (7) | 0.00250 (7) | 0.00969 (6) | 0.00190 (7) |
S1 | 0.0432 (3) | 0.01778 (18) | 0.0276 (2) | 0.00609 (17) | 0.01949 (19) | 0.00226 (15) |
N1 | 0.0210 (6) | 0.0184 (6) | 0.0148 (5) | 0.0036 (5) | 0.0069 (5) | 0.0005 (5) |
N2 | 0.0205 (6) | 0.0183 (6) | 0.0200 (6) | 0.0040 (5) | 0.0064 (5) | 0.0002 (5) |
N3 | 0.0237 (6) | 0.0183 (6) | 0.0171 (6) | 0.0025 (5) | 0.0079 (5) | 0.0003 (5) |
N4 | 0.0200 (6) | 0.0272 (7) | 0.0181 (6) | −0.0008 (5) | 0.0076 (5) | −0.0047 (5) |
N5 | 0.0207 (6) | 0.0199 (6) | 0.0161 (5) | −0.0001 (5) | 0.0066 (5) | −0.0017 (5) |
C1 | 0.0221 (7) | 0.0199 (7) | 0.0168 (7) | 0.0015 (6) | 0.0067 (6) | −0.0008 (5) |
C2 | 0.0165 (7) | 0.0195 (7) | 0.0168 (6) | 0.0023 (5) | 0.0044 (6) | −0.0018 (5) |
C3 | 0.0225 (7) | 0.0192 (7) | 0.0156 (6) | 0.0008 (6) | 0.0052 (6) | 0.0002 (5) |
C4 | 0.0188 (7) | 0.0173 (7) | 0.0144 (6) | −0.0004 (5) | 0.0037 (5) | −0.0014 (5) |
C5 | 0.0251 (8) | 0.0165 (7) | 0.0160 (6) | 0.0018 (6) | 0.0053 (6) | −0.0006 (5) |
C6 | 0.0208 (7) | 0.0178 (7) | 0.0193 (7) | 0.0025 (6) | 0.0051 (6) | −0.0032 (5) |
C7 | 0.0209 (7) | 0.0231 (7) | 0.0146 (6) | −0.0007 (6) | 0.0056 (6) | −0.0030 (5) |
C8 | 0.0215 (7) | 0.0212 (7) | 0.0170 (7) | 0.0027 (6) | 0.0037 (6) | 0.0018 (6) |
C9 | 0.0197 (7) | 0.0206 (7) | 0.0175 (7) | 0.0033 (6) | 0.0040 (6) | −0.0008 (5) |
C10 | 0.0209 (7) | 0.0191 (7) | 0.0178 (7) | 0.0040 (6) | 0.0036 (6) | 0.0001 (5) |
C11 | 0.0206 (7) | 0.0151 (6) | 0.0191 (7) | 0.0051 (5) | 0.0062 (6) | 0.0004 (5) |
C12 | 0.0242 (7) | 0.0200 (7) | 0.0151 (6) | 0.0052 (6) | 0.0028 (6) | 0.0019 (5) |
C13 | 0.0256 (8) | 0.0210 (7) | 0.0200 (7) | 0.0043 (6) | 0.0075 (6) | 0.0048 (6) |
C14 | 0.0222 (7) | 0.0162 (7) | 0.0212 (7) | 0.0043 (5) | 0.0061 (6) | 0.0011 (5) |
C15 | 0.0239 (8) | 0.0240 (8) | 0.0172 (7) | 0.0031 (6) | 0.0052 (6) | −0.0019 (6) |
C16 | 0.0245 (8) | 0.0220 (7) | 0.0175 (7) | 0.0024 (6) | 0.0088 (6) | 0.0013 (6) |
C17 | 0.0220 (8) | 0.0230 (8) | 0.0317 (9) | 0.0060 (6) | 0.0059 (7) | 0.0004 (7) |
C18 | 0.0265 (8) | 0.0180 (7) | 0.0239 (8) | 0.0008 (6) | 0.0068 (6) | 0.0011 (6) |
C19 | 0.0242 (7) | 0.0185 (7) | 0.0163 (6) | −0.0004 (6) | 0.0074 (6) | −0.0008 (5) |
C20 | 0.0297 (9) | 0.0208 (8) | 0.0320 (9) | 0.0001 (7) | 0.0151 (7) | 0.0009 (7) |
C21 | 0.0251 (8) | 0.0213 (7) | 0.0213 (7) | 0.0005 (6) | 0.0059 (6) | 0.0012 (6) |
C22 | 0.0266 (8) | 0.0234 (8) | 0.0191 (7) | −0.0006 (6) | 0.0099 (6) | −0.0016 (6) |
C23 | 0.0218 (7) | 0.0220 (8) | 0.0164 (6) | 0.0015 (6) | 0.0074 (6) | 0.0027 (5) |
C24 | 0.0265 (8) | 0.0241 (7) | 0.0201 (7) | 0.0031 (6) | 0.0108 (6) | 0.0007 (6) |
C25 | 0.0218 (7) | 0.0350 (9) | 0.0231 (7) | 0.0051 (7) | 0.0106 (6) | 0.0053 (7) |
C26 | 0.0216 (8) | 0.0352 (9) | 0.0270 (8) | −0.0035 (7) | 0.0088 (7) | 0.0029 (7) |
C27 | 0.0297 (9) | 0.0237 (8) | 0.0301 (9) | −0.0030 (7) | 0.0101 (7) | 0.0006 (7) |
C28 | 0.0218 (7) | 0.0215 (8) | 0.0278 (8) | 0.0019 (6) | 0.0102 (7) | 0.0033 (6) |
C29 | 0.0196 (6) | 0.0181 (7) | 0.0179 (6) | 0.0001 (6) | 0.0062 (5) | −0.0011 (6) |
C30 | 0.0260 (8) | 0.0258 (8) | 0.0171 (7) | 0.0016 (7) | 0.0038 (6) | 0.0019 (6) |
C31 | 0.0194 (7) | 0.0266 (8) | 0.0280 (8) | 0.0029 (6) | 0.0035 (6) | 0.0025 (7) |
C32 | 0.0200 (7) | 0.0243 (8) | 0.0299 (8) | 0.0005 (6) | 0.0116 (6) | −0.0030 (7) |
C33 | 0.0254 (8) | 0.0246 (8) | 0.0182 (7) | −0.0008 (6) | 0.0087 (6) | 0.0004 (6) |
C34 | 0.0203 (7) | 0.0231 (8) | 0.0180 (7) | 0.0030 (6) | 0.0042 (6) | 0.0020 (6) |
Br1—C7 | 1.8925 (16) | C17—H17A | 0.96 |
S1—C1 | 1.6688 (15) | C17—H17B | 0.96 |
N1—C2 | 1.3800 (19) | C17—H17C | 0.96 |
N1—N5 | 1.3879 (18) | C18—C19 | 1.535 (2) |
N1—C1 | 1.3907 (19) | C18—H18A | 0.97 |
N2—C2 | 1.2968 (19) | C18—H18B | 0.97 |
N2—N3 | 1.3818 (18) | C19—C20 | 1.522 (2) |
N3—C1 | 1.354 (2) | C19—C21 | 1.526 (2) |
N3—C22 | 1.466 (2) | C19—H19A | 0.98 |
N4—C23 | 1.404 (2) | C20—H20A | 0.96 |
N4—C29 | 1.422 (2) | C20—H20B | 0.96 |
N4—C22 | 1.4399 (19) | C20—H20C | 0.96 |
N5—C3 | 1.2821 (19) | C21—H21A | 0.96 |
C2—C10 | 1.497 (2) | C21—H21B | 0.96 |
C3—C4 | 1.456 (2) | C21—H21C | 0.96 |
C3—H3A | 0.93 | C22—H22A | 0.97 |
C4—C5 | 1.395 (2) | C22—H22B | 0.97 |
C4—C9 | 1.408 (2) | C23—C28 | 1.398 (2) |
C5—C6 | 1.383 (2) | C23—C24 | 1.398 (2) |
C5—H5A | 0.93 | C24—C25 | 1.396 (2) |
C6—C7 | 1.384 (2) | C24—H24A | 0.93 |
C6—H6A | 0.93 | C25—C26 | 1.383 (2) |
C7—C8 | 1.388 (2) | C25—H25A | 0.93 |
C8—C9 | 1.378 (2) | C26—C27 | 1.385 (2) |
C8—H8A | 0.93 | C26—H26A | 0.93 |
C9—H9A | 0.93 | C27—C28 | 1.374 (2) |
C10—C11 | 1.519 (2) | C27—H27A | 0.93 |
C10—C17 | 1.531 (2) | C28—H28A | 0.93 |
C10—H10A | 0.98 | C29—C30 | 1.381 (2) |
C11—C12 | 1.392 (2) | C29—C34 | 1.402 (2) |
C11—C16 | 1.392 (2) | C30—C31 | 1.390 (2) |
C12—C13 | 1.386 (2) | C30—H30A | 0.93 |
C12—H12A | 0.93 | C31—C32 | 1.386 (2) |
C13—C14 | 1.397 (2) | C31—H31A | 0.93 |
C13—H13A | 0.93 | C32—C33 | 1.386 (2) |
C14—C15 | 1.395 (2) | C32—H32A | 0.93 |
C14—C18 | 1.508 (2) | C33—C34 | 1.378 (2) |
C15—C16 | 1.387 (2) | C33—H33A | 0.93 |
C15—H15A | 0.93 | C34—H34A | 0.93 |
C16—H16A | 0.93 | ||
C2—N1—N5 | 118.83 (12) | H17B—C17—H17C | 109.5 |
C2—N1—C1 | 108.47 (13) | C14—C18—C19 | 114.99 (13) |
N5—N1—C1 | 132.69 (12) | C14—C18—H18A | 108.5 |
C2—N2—N3 | 104.23 (12) | C19—C18—H18A | 108.5 |
C1—N3—N2 | 113.84 (12) | C14—C18—H18B | 108.5 |
C1—N3—C22 | 125.69 (13) | C19—C18—H18B | 108.5 |
N2—N3—C22 | 120.35 (12) | H18A—C18—H18B | 107.5 |
C23—N4—C29 | 119.80 (12) | C20—C19—C21 | 110.56 (13) |
C23—N4—C22 | 121.01 (13) | C20—C19—C18 | 110.48 (12) |
C29—N4—C22 | 119.14 (13) | C21—C19—C18 | 111.82 (13) |
C3—N5—N1 | 118.00 (12) | C20—C19—H19A | 107.9 |
N3—C1—N1 | 102.21 (12) | C21—C19—H19A | 107.9 |
N3—C1—S1 | 127.43 (12) | C18—C19—H19A | 107.9 |
N1—C1—S1 | 130.26 (12) | C19—C20—H20A | 109.5 |
N2—C2—N1 | 111.21 (13) | C19—C20—H20B | 109.5 |
N2—C2—C10 | 125.62 (13) | H20A—C20—H20B | 109.5 |
N1—C2—C10 | 123.10 (13) | C19—C20—H20C | 109.5 |
N5—C3—C4 | 119.71 (13) | H20A—C20—H20C | 109.5 |
N5—C3—H3A | 120.1 | H20B—C20—H20C | 109.5 |
C4—C3—H3A | 120.1 | C19—C21—H21A | 109.5 |
C5—C4—C9 | 118.73 (14) | C19—C21—H21B | 109.5 |
C5—C4—C3 | 118.76 (13) | H21A—C21—H21B | 109.5 |
C9—C4—C3 | 122.39 (14) | C19—C21—H21C | 109.5 |
C6—C5—C4 | 121.49 (14) | H21A—C21—H21C | 109.5 |
C6—C5—H5A | 119.3 | H21B—C21—H21C | 109.5 |
C4—C5—H5A | 119.3 | N4—C22—N3 | 112.04 (13) |
C5—C6—C7 | 118.48 (14) | N4—C22—H22A | 109.2 |
C5—C6—H6A | 120.8 | N3—C22—H22A | 109.2 |
C7—C6—H6A | 120.8 | N4—C22—H22B | 109.2 |
C6—C7—C8 | 121.48 (15) | N3—C22—H22B | 109.2 |
C6—C7—Br1 | 119.31 (12) | H22A—C22—H22B | 107.9 |
C8—C7—Br1 | 119.20 (12) | C28—C23—C24 | 118.75 (15) |
C9—C8—C7 | 119.73 (14) | C28—C23—N4 | 119.42 (14) |
C9—C8—H8A | 120.1 | C24—C23—N4 | 121.83 (14) |
C7—C8—H8A | 120.1 | C25—C24—C23 | 119.77 (15) |
C8—C9—C4 | 120.05 (14) | C25—C24—H24A | 120.1 |
C8—C9—H9A | 120.0 | C23—C24—H24A | 120.1 |
C4—C9—H9A | 120.0 | C26—C25—C24 | 120.90 (16) |
C2—C10—C11 | 111.34 (12) | C26—C25—H25A | 119.5 |
C2—C10—C17 | 110.33 (13) | C24—C25—H25A | 119.5 |
C11—C10—C17 | 110.39 (12) | C25—C26—C27 | 118.88 (16) |
C2—C10—H10A | 108.2 | C25—C26—H26A | 120.6 |
C11—C10—H10A | 108.2 | C27—C26—H26A | 120.6 |
C17—C10—H10A | 108.2 | C28—C27—C26 | 121.13 (16) |
C12—C11—C16 | 118.23 (14) | C28—C27—H27A | 119.4 |
C12—C11—C10 | 120.12 (13) | C26—C27—H27A | 119.4 |
C16—C11—C10 | 121.44 (14) | C27—C28—C23 | 120.54 (15) |
C13—C12—C11 | 120.94 (14) | C27—C28—H28A | 119.7 |
C13—C12—H12A | 119.5 | C23—C28—H28A | 119.7 |
C11—C12—H12A | 119.5 | C30—C29—C34 | 119.83 (14) |
C12—C13—C14 | 121.13 (15) | C30—C29—N4 | 121.92 (14) |
C12—C13—H13A | 119.4 | C34—C29—N4 | 118.25 (13) |
C14—C13—H13A | 119.4 | C29—C30—C31 | 119.85 (14) |
C15—C14—C13 | 117.60 (15) | C29—C30—H30A | 120.1 |
C15—C14—C18 | 121.65 (14) | C31—C30—H30A | 120.1 |
C13—C14—C18 | 120.75 (14) | C32—C31—C30 | 120.24 (15) |
C16—C15—C14 | 121.29 (14) | C32—C31—H31A | 119.9 |
C16—C15—H15A | 119.4 | C30—C31—H31A | 119.9 |
C14—C15—H15A | 119.4 | C31—C32—C33 | 119.87 (15) |
C15—C16—C11 | 120.77 (15) | C31—C32—H32A | 120.1 |
C15—C16—H16A | 119.6 | C33—C32—H32A | 120.1 |
C11—C16—H16A | 119.6 | C34—C33—C32 | 120.24 (15) |
C10—C17—H17A | 109.5 | C34—C33—H33A | 119.9 |
C10—C17—H17B | 109.5 | C32—C33—H33A | 119.9 |
H17A—C17—H17B | 109.5 | C33—C34—C29 | 119.96 (14) |
C10—C17—H17C | 109.5 | C33—C34—H34A | 120.0 |
H17A—C17—H17C | 109.5 | C29—C34—H34A | 120.0 |
C2—N2—N3—C1 | −0.72 (16) | C11—C12—C13—C14 | −0.1 (2) |
C2—N2—N3—C22 | 175.64 (13) | C12—C13—C14—C15 | 1.3 (2) |
C2—N1—N5—C3 | 159.63 (14) | C12—C13—C14—C18 | −178.97 (14) |
C1—N1—N5—C3 | −21.9 (2) | C13—C14—C15—C16 | −1.0 (2) |
N2—N3—C1—N1 | 1.58 (16) | C18—C14—C15—C16 | 179.34 (14) |
C22—N3—C1—N1 | −174.54 (13) | C14—C15—C16—C11 | −0.6 (2) |
N2—N3—C1—S1 | −175.19 (11) | C12—C11—C16—C15 | 1.8 (2) |
C22—N3—C1—S1 | 8.7 (2) | C10—C11—C16—C15 | −173.02 (14) |
C2—N1—C1—N3 | −1.81 (15) | C15—C14—C18—C19 | 91.60 (18) |
N5—N1—C1—N3 | 179.61 (14) | C13—C14—C18—C19 | −88.07 (18) |
C2—N1—C1—S1 | 174.83 (12) | C14—C18—C19—C20 | 171.34 (13) |
N5—N1—C1—S1 | −3.7 (3) | C14—C18—C19—C21 | −65.06 (17) |
N3—N2—C2—N1 | −0.53 (15) | C23—N4—C22—N3 | −58.20 (18) |
N3—N2—C2—C10 | −177.61 (13) | C29—N4—C22—N3 | 119.16 (15) |
N5—N1—C2—N2 | −179.65 (12) | C1—N3—C22—N4 | 134.71 (15) |
C1—N1—C2—N2 | 1.54 (17) | N2—N3—C22—N4 | −41.18 (18) |
N5—N1—C2—C10 | −2.5 (2) | C29—N4—C23—C28 | −28.3 (2) |
C1—N1—C2—C10 | 178.71 (13) | C22—N4—C23—C28 | 149.07 (15) |
N1—N5—C3—C4 | −175.35 (12) | C29—N4—C23—C24 | 152.09 (15) |
N5—C3—C4—C5 | 173.71 (14) | C22—N4—C23—C24 | −30.6 (2) |
N5—C3—C4—C9 | −2.3 (2) | C28—C23—C24—C25 | 2.1 (2) |
C9—C4—C5—C6 | 2.0 (2) | N4—C23—C24—C25 | −178.29 (14) |
C3—C4—C5—C6 | −174.15 (14) | C23—C24—C25—C26 | −1.6 (2) |
C4—C5—C6—C7 | −1.0 (2) | C24—C25—C26—C27 | 0.2 (2) |
C5—C6—C7—C8 | −0.5 (2) | C25—C26—C27—C28 | 0.7 (3) |
C5—C6—C7—Br1 | 178.70 (11) | C26—C27—C28—C23 | −0.2 (3) |
C6—C7—C8—C9 | 1.0 (2) | C24—C23—C28—C27 | −1.2 (2) |
Br1—C7—C8—C9 | −178.16 (11) | N4—C23—C28—C27 | 179.18 (15) |
C7—C8—C9—C4 | −0.1 (2) | C23—N4—C29—C30 | 121.59 (16) |
C5—C4—C9—C8 | −1.4 (2) | C22—N4—C29—C30 | −55.8 (2) |
C3—C4—C9—C8 | 174.57 (14) | C23—N4—C29—C34 | −58.07 (19) |
N2—C2—C10—C11 | 103.74 (17) | C22—N4—C29—C34 | 124.55 (15) |
N1—C2—C10—C11 | −73.02 (18) | C34—C29—C30—C31 | −0.7 (2) |
N2—C2—C10—C17 | −19.2 (2) | N4—C29—C30—C31 | 179.60 (14) |
N1—C2—C10—C17 | 164.05 (13) | C29—C30—C31—C32 | 0.7 (2) |
C2—C10—C11—C12 | 135.56 (14) | C30—C31—C32—C33 | 0.1 (2) |
C17—C10—C11—C12 | −101.54 (16) | C31—C32—C33—C34 | −1.0 (2) |
C2—C10—C11—C16 | −49.71 (19) | C32—C33—C34—C29 | 1.0 (2) |
C17—C10—C11—C16 | 73.20 (17) | C30—C29—C34—C33 | −0.1 (2) |
C16—C11—C12—C13 | −1.5 (2) | N4—C29—C34—C33 | 179.55 (14) |
C10—C11—C12—C13 | 173.45 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···S1 | 0.93 | 2.52 | 3.217 (2) | 132 |
C22—H22B···S1 | 0.97 | 2.80 | 3.232 (2) | 108 |
C6—H6A···Cg1i | 0.93 | 2.81 | 3.717 (2) | 165 |
C21—H21C···Cg2ii | 0.96 | 2.89 | 3.829 (2) | 168 |
Symmetry codes: (i) −x+1, −y, −z; (ii) −x+1, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C34H34BrN5S |
Mr | 624.63 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 10.9672 (1), 9.7833 (1), 28.6210 (3) |
β (°) | 105.966 (1) |
V (Å3) | 2952.44 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.50 |
Crystal size (mm) | 0.35 × 0.31 × 0.27 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.623, 0.684 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 55283, 13248, 7914 |
Rint | 0.059 |
(sin θ/λ)max (Å−1) | 0.815 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.098, 1.02 |
No. of reflections | 13248 |
No. of parameters | 372 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.46, −0.57 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···S1 | 0.93 | 2.52 | 3.217 (2) | 132 |
C22—H22B···S1 | 0.97 | 2.80 | 3.232 (2) | 108 |
C6—H6A···Cg1i | 0.93 | 2.81 | 3.717 (2) | 165 |
C21—H21C···Cg2ii | 0.96 | 2.89 | 3.829 (2) | 168 |
Symmetry codes: (i) −x+1, −y, −z; (ii) −x+1, y+1/2, −z+1/2. |
Footnotes
‡Permanent address: Department of Physics, Karunya University, Karunya Nagar, Coimbatore 641 114, India.
Acknowledgements
HKF and SRJ thank the Malaysian Government and Universiti Sains Malaysia for the Science Fund grant No. 305/PFIZIK/613312. SRJ thanks Universiti Sains Malaysia for a post-doctoral research fellowship.
References
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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.
Nitrogen-containing heterocyclic molecules constitute the largest portion of chemical entities, which are part of many natural products, fine chemicals, and biologically active pharmaceuticals vital for enhancing the quality of life (Kalluraya et al. 2003, 2007; Kane et al., 1990). Mannich bases are a class of heterocycles, which have attracted significant interest in medicinal chemistry (Kalluraya et al., 2004). Among the Mannich bases, 1,2,4-triazole derivatives have attracted considerable attention because of their wide variety of biological activities, such as antineoplastic, analgesic and antibiotic activity (Dave et al., 2007). Mannich bases are obtained by condensing an amine, formaldehyde and a compound containing active hydrogen atom (Kalluraya et al., 2001). It is interesting to note that the reaction is highly regioselective and furnishes only the N-Mannich base and none of the S-Mannich derivatives, though the intermediate Schiff bases can exist in the thiol-thione tautomeric equilibrium. In view of these impressive array of properties exhibited by Mannich bases, the crystal structure of the title compound is reported here.
Bond lengths and angles in the title compound have normal values (Allen et al., 1987). The triazole ring is planar with a maximium deviation of 0.010 (2) Å for atom C1. The planes through the C4—C9, C11—C16, C23—C28 and C29—C34 rings form dihedral angles of 25.10 (8), 81.35 (8), 74.04 (8) and 48.74 (8)°, respectively, with the the triazole ring. Weak C—H···S hydrogen bonds generating S(6) and S(5) ring motifs (Bernstein et al.,(1995) are observed in the molecular structure.
The crystal packing is stabilized by weak C—H···π interactions involving the C11–C16 (centroid Cg1) and C23–C28 (centroid Cg2) rings (Table 1).