Acta Cryst. (2008). E64, o2019-o2020 [ doi:10.1107/S1600536808030432 ]
In the title compound, C25H27N2+·Br-·H2O, the benzimidazole unit is essentially planar, with a maximum deviation of 0.020 (6) Å. The benzimidazole unit makes dihedral angles of 83.6 (3) and 81.0 (3)° with the two terminal phenyl rings. The dihedral angle between the phenyl rings is 58.5 (4)°. In the crystal structure, there are C-H
O hydrogen bonds, a C-H
interaction between a phenyl H atom and the phenyl ring of a neighbouring molecule, and a
-
interaction [3.512 (3) Å] between the centroids of the five-membered ring and the benzene ring of the benzimidazole unit of an adjacent molecule.
A solution of 1-(3-phenylpropyl)benzimidazole (4.20 g,17.80 mmol) and Ph(CH2)3Br (2.70 ml, 17.85 mmol) was refluxed in DMF for 4 h. The mixture was then cooled and the volatiles were removed from the filtrate in vacuo. The residue obtained was then crytallized from EtOH/Et2O(1:5) (yield 6.50 g, 84%; m.p. 376–377 K). 1H-NMR (DMSO-d6): δ (p.p.m.) 2.26 (p, CH2, 4H), 2.73 (t, CH2—Ar, 4H), 4.55 (t, CH2—N, 4H), 7.14–8.13 (m, Ar—H, 14H), 9.99 (s, >CH, 1H). 13C-NMR (DMSO-d6): δ 30.5, 32.4, 47.0, 114.2, 126.5, 126.9, 128.7, 131.6, 141.4, 142.7. Analysis calculated for C25H29N2OBr: C 66.23, H 6.40, N 6.18%; found: C 65.99, H 6.13, N 6.10%.
Water H atoms were found in a difference Fourier map and distance restraints [O—H = 0.84 (9) and H···H = 1.37 (9) Å] were used to obtain reasonable values for O–H distances and H—O—H angles, with Uiso(H) = 1.5Ueq(O). Other H atoms were positioned to the ideal geometric positions and refined with a riding model, with C—H = 0.93 and 0.97 Å, and with Uiso = 1.2Ueq(C).
Data collection: X-AREA (Stoe & Cie, 2002); cell refinement: X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
| C25H27N2+·Br−·H2O | F(000) = 944 |
| Mr = 453.40 | Dx = 1.300 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 13886 reflections |
| a = 14.1933 (8) Å | θ = 1.4–28.0° |
| b = 11.4594 (3) Å | µ = 1.79 mm−1 |
| c = 18.3014 (10) Å | T = 295 K |
| β = 128.916 (3)° | Block, colourless |
| V = 2316.1 (2) Å3 | 0.71 × 0.63 × 0.54 mm |
| Z = 4 |
| Stoe IPDS II diffractometer | 5283 independent reflections |
| Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus | 2688 reflections with I > 2σ(I) |
| plane graphite | Rint = 0.071 |
| Detector resolution: 6.67 pixels mm-1 | θmax = 27.6°, θmin = 1.8° |
| ω scans | h = −18→18 |
| Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | k = −13→14 |
| Tmin = 0.363, Tmax = 0.444 | l = −23→23 |
| 18735 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)] = 0.065 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.173 | H atoms treated by a mixture of independent and constrained refinement |
| S = 0.99 | w = 1/[σ2(Fo2) + (0.0827P)2] where P = (Fo2 + 2Fc2)/3 |
| 5283 reflections | (Δ/σ)max < 0.001 |
| 268 parameters | Δρmax = 0.47 e Å−3 |
| 3 restraints | Δρmin = −0.24 e Å−3 |
| C25H27N2+·Br−·H2O | V = 2316.1 (2) Å3 |
| Mr = 453.40 | Z = 4 |
| Monoclinic, P21/c | Mo Kα radiation |
| a = 14.1933 (8) Å | µ = 1.79 mm−1 |
| b = 11.4594 (3) Å | T = 295 K |
| c = 18.3014 (10) Å | 0.71 × 0.63 × 0.54 mm |
| β = 128.916 (3)° |
| Stoe IPDS II diffractometer | 5283 independent reflections |
| Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 2688 reflections with I > 2σ(I) |
| Tmin = 0.363, Tmax = 0.444 | Rint = 0.071 |
| 18735 measured reflections | θmax = 27.6° |
| R[F2 > 2σ(F2)] = 0.065 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.173 | Δρmax = 0.47 e Å−3 |
| S = 0.99 | Δρmin = −0.24 e Å−3 |
| 5283 reflections | Absolute structure: ? |
| 268 parameters | Flack parameter: ? |
| 3 restraints | Rogers parameter: ? |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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 | ||
| N1 | −0.1093 (3) | 0.1691 (3) | 0.9193 (2) | 0.0541 (10) | |
| N2 | −0.1505 (3) | 0.0103 (3) | 0.8391 (2) | 0.0539 (11) | |
| C1 | −0.1415 (3) | 0.0860 (3) | 0.9554 (3) | 0.0514 (11) | |
| C2 | −0.1469 (4) | 0.0912 (4) | 1.0285 (3) | 0.0622 (14) | |
| C3 | −0.1784 (4) | −0.0099 (4) | 1.0477 (3) | 0.0753 (17) | |
| C4 | −0.2034 (4) | −0.1121 (4) | 0.9973 (3) | 0.0742 (17) | |
| C5 | −0.1995 (4) | −0.1173 (3) | 0.9243 (3) | 0.0645 (16) | |
| C6 | −0.1673 (3) | −0.0157 (3) | 0.9049 (3) | 0.0505 (11) | |
| C7 | −0.1159 (4) | 0.1196 (3) | 0.8509 (3) | 0.0587 (12) | |
| C8 | −0.1677 (4) | −0.0701 (4) | 0.7691 (3) | 0.0700 (17) | |
| C9 | −0.3031 (5) | −0.0933 (4) | 0.6894 (3) | 0.0853 (19) | |
| C10 | −0.3233 (6) | −0.1767 (6) | 0.6209 (4) | 0.105 (2) | |
| C11 | −0.4522 (5) | −0.2161 (5) | 0.5455 (4) | 0.0905 (19) | |
| C12 | −0.5522 (5) | −0.1513 (5) | 0.5160 (4) | 0.102 (2) | |
| C13 | −0.6656 (6) | −0.1874 (7) | 0.4419 (4) | 0.107 (3) | |
| C14 | −0.6809 (8) | −0.2866 (8) | 0.3982 (5) | 0.121 (3) | |
| C15 | −0.5849 (10) | −0.3547 (7) | 0.4275 (6) | 0.128 (4) | |
| C16 | −0.4716 (7) | −0.3209 (6) | 0.5006 (6) | 0.113 (3) | |
| C17 | −0.0775 (4) | 0.2925 (3) | 0.9491 (3) | 0.0652 (16) | |
| C18 | −0.1947 (5) | 0.3644 (4) | 0.8951 (4) | 0.0844 (19) | |
| C19 | −0.1744 (5) | 0.4916 (4) | 0.9136 (4) | 0.085 (2) | |
| C20 | −0.2942 (5) | 0.5556 (4) | 0.8583 (4) | 0.079 (2) | |
| C21 | −0.3563 (8) | 0.5820 (7) | 0.7649 (5) | 0.126 (3) | |
| C22 | −0.4712 (9) | 0.6297 (8) | 0.7129 (6) | 0.166 (4) | |
| C23 | −0.5191 (7) | 0.6575 (6) | 0.7529 (8) | 0.134 (4) | |
| C24 | −0.4537 (8) | 0.6398 (7) | 0.8464 (8) | 0.132 (4) | |
| C25 | −0.3441 (6) | 0.5865 (5) | 0.8976 (5) | 0.093 (2) | |
| O1 | 0.0138 (8) | 0.3343 (4) | 0.8276 (5) | 0.145 (3) | |
| Br1 | 0.01170 (5) | 0.12751 (4) | 0.69968 (4) | 0.0869 (2) | |
| H2 | −0.13010 | 0.15940 | 1.06230 | 0.0750* | |
| H3 | −0.18330 | −0.01050 | 1.09600 | 0.0900* | |
| H4 | −0.22340 | −0.17910 | 1.01360 | 0.0890* | |
| H5 | −0.21740 | −0.18530 | 0.89000 | 0.0780* | |
| H7 | −0.09830 | 0.15740 | 0.81580 | 0.0700* | |
| H8A | −0.12700 | −0.14330 | 0.79930 | 0.0850* | |
| H8B | −0.13160 | −0.03690 | 0.74310 | 0.0850* | |
| H9A | −0.33960 | −0.12290 | 0.71610 | 0.1020* | |
| H9B | −0.34280 | −0.02040 | 0.65790 | 0.1020* | |
| H10A | −0.27450 | −0.24520 | 0.65450 | 0.1260* | |
| H10B | −0.29360 | −0.14250 | 0.59040 | 0.1260* | |
| H12 | −0.54230 | −0.08240 | 0.54700 | 0.1230* | |
| H13 | −0.73240 | −0.14220 | 0.42180 | 0.1270* | |
| H14 | −0.75850 | −0.30960 | 0.34680 | 0.1460* | |
| H15 | −0.59700 | −0.42500 | 0.39730 | 0.1540* | |
| H16 | −0.40610 | −0.36840 | 0.52080 | 0.1360* | |
| H17A | −0.02540 | 0.32160 | 0.93590 | 0.0780* | |
| H17B | −0.03440 | 0.29890 | 1.01610 | 0.0780* | |
| H18A | −0.24030 | 0.35110 | 0.82840 | 0.1010* | |
| H18B | −0.24350 | 0.33690 | 0.91190 | 0.1010* | |
| H19A | −0.12700 | 0.52050 | 0.89590 | 0.1020* | |
| H19B | −0.12920 | 0.50610 | 0.98010 | 0.1020* | |
| H21 | −0.32100 | 0.56780 | 0.73680 | 0.1510* | |
| H22 | −0.51500 | 0.64220 | 0.64880 | 0.2000* | |
| H23 | −0.59660 | 0.68890 | 0.71770 | 0.1610* | |
| H24 | −0.48460 | 0.66450 | 0.87600 | 0.1580* | |
| H25 | −0.30310 | 0.57120 | 0.96090 | 0.1110* | |
| HW1 | −0.042 (7) | 0.364 (8) | 0.775 (4) | 0.2170* | |
| HW2 | 0.071 (6) | 0.383 (7) | 0.854 (7) | 0.2170* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| N1 | 0.0533 (19) | 0.0500 (15) | 0.0617 (19) | −0.0075 (14) | 0.0374 (17) | −0.0040 (15) |
| N2 | 0.0536 (19) | 0.0543 (17) | 0.0612 (19) | −0.0002 (14) | 0.0396 (17) | −0.0013 (14) |
| C1 | 0.038 (2) | 0.0523 (19) | 0.054 (2) | 0.0024 (16) | 0.0242 (18) | 0.0012 (17) |
| C2 | 0.059 (3) | 0.070 (2) | 0.058 (2) | −0.002 (2) | 0.037 (2) | −0.0056 (19) |
| C3 | 0.079 (3) | 0.094 (3) | 0.065 (3) | 0.001 (3) | 0.051 (3) | 0.010 (2) |
| C4 | 0.079 (3) | 0.070 (3) | 0.080 (3) | −0.003 (2) | 0.053 (3) | 0.015 (2) |
| C5 | 0.067 (3) | 0.052 (2) | 0.074 (3) | −0.004 (2) | 0.044 (2) | 0.001 (2) |
| C6 | 0.043 (2) | 0.0499 (19) | 0.057 (2) | 0.0042 (16) | 0.0307 (19) | 0.0045 (17) |
| C7 | 0.054 (2) | 0.056 (2) | 0.069 (2) | −0.0047 (19) | 0.040 (2) | 0.004 (2) |
| C8 | 0.078 (3) | 0.071 (3) | 0.074 (3) | −0.004 (2) | 0.054 (3) | −0.010 (2) |
| C9 | 0.087 (4) | 0.080 (3) | 0.066 (3) | 0.013 (3) | 0.037 (3) | −0.004 (2) |
| C10 | 0.100 (4) | 0.116 (4) | 0.101 (4) | 0.011 (4) | 0.064 (4) | −0.021 (4) |
| C11 | 0.071 (3) | 0.088 (3) | 0.089 (4) | −0.002 (3) | 0.039 (3) | −0.016 (3) |
| C12 | 0.078 (4) | 0.099 (4) | 0.089 (4) | 0.008 (3) | 0.033 (3) | −0.010 (3) |
| C13 | 0.075 (4) | 0.133 (5) | 0.091 (4) | −0.012 (4) | 0.042 (4) | 0.015 (4) |
| C14 | 0.116 (6) | 0.141 (6) | 0.084 (4) | −0.059 (5) | 0.052 (4) | −0.009 (4) |
| C15 | 0.158 (8) | 0.116 (5) | 0.138 (6) | −0.047 (6) | 0.106 (7) | −0.041 (5) |
| C16 | 0.108 (5) | 0.099 (4) | 0.152 (6) | −0.006 (4) | 0.091 (5) | −0.020 (4) |
| C17 | 0.068 (3) | 0.050 (2) | 0.078 (3) | −0.0074 (19) | 0.046 (3) | −0.0058 (19) |
| C18 | 0.082 (3) | 0.067 (3) | 0.101 (4) | −0.002 (2) | 0.056 (3) | −0.009 (3) |
| C19 | 0.093 (4) | 0.059 (3) | 0.100 (4) | −0.008 (2) | 0.059 (3) | −0.006 (2) |
| C20 | 0.087 (4) | 0.064 (3) | 0.090 (4) | 0.001 (2) | 0.058 (3) | 0.006 (2) |
| C21 | 0.143 (6) | 0.133 (5) | 0.111 (5) | 0.037 (5) | 0.084 (5) | 0.026 (4) |
| C22 | 0.161 (8) | 0.177 (9) | 0.109 (6) | 0.082 (7) | 0.060 (6) | 0.045 (5) |
| C23 | 0.084 (5) | 0.103 (5) | 0.174 (8) | 0.030 (4) | 0.061 (6) | 0.019 (5) |
| C24 | 0.129 (6) | 0.121 (6) | 0.174 (8) | 0.014 (5) | 0.109 (6) | −0.024 (6) |
| C25 | 0.104 (4) | 0.086 (3) | 0.107 (4) | 0.002 (3) | 0.075 (4) | −0.005 (3) |
| O1 | 0.248 (6) | 0.096 (3) | 0.196 (5) | 0.007 (4) | 0.190 (5) | 0.018 (3) |
| Br1 | 0.1042 (4) | 0.0715 (3) | 0.0851 (4) | −0.0021 (3) | 0.0595 (3) | 0.0094 (2) |
| O1—HW1 | 0.84 (7) | C23—C24 | 1.355 (16) |
| O1—HW2 | 0.84 (11) | C24—C25 | 1.356 (15) |
| N1—C1 | 1.390 (6) | C2—H2 | 0.9300 |
| N1—C7 | 1.323 (6) | C3—H3 | 0.9300 |
| N1—C17 | 1.480 (5) | C4—H4 | 0.9300 |
| N2—C6 | 1.399 (6) | C5—H5 | 0.9300 |
| N2—C8 | 1.469 (6) | C7—H7 | 0.9300 |
| N2—C7 | 1.313 (5) | C8—H8B | 0.9700 |
| C1—C6 | 1.386 (5) | C8—H8A | 0.9700 |
| C1—C2 | 1.389 (7) | C9—H9B | 0.9700 |
| C2—C3 | 1.365 (7) | C9—H9A | 0.9700 |
| C3—C4 | 1.392 (6) | C10—H10A | 0.9700 |
| C4—C5 | 1.373 (8) | C10—H10B | 0.9700 |
| C5—C6 | 1.376 (6) | C12—H12 | 0.9300 |
| C8—C9 | 1.539 (8) | C13—H13 | 0.9300 |
| C9—C10 | 1.455 (8) | C14—H14 | 0.9300 |
| C10—C11 | 1.511 (10) | C15—H15 | 0.9300 |
| C11—C12 | 1.376 (11) | C16—H16 | 0.9300 |
| C11—C16 | 1.382 (9) | C17—H17A | 0.9700 |
| C12—C13 | 1.363 (10) | C17—H17B | 0.9700 |
| C13—C14 | 1.327 (12) | C18—H18B | 0.9700 |
| C14—C15 | 1.355 (17) | C18—H18A | 0.9700 |
| C15—C16 | 1.350 (15) | C19—H19B | 0.9700 |
| C17—C18 | 1.535 (9) | C19—H19A | 0.9700 |
| C18—C19 | 1.483 (7) | C21—H21 | 0.9300 |
| C19—C20 | 1.514 (10) | C22—H22 | 0.9300 |
| C20—C25 | 1.336 (12) | C23—H23 | 0.9300 |
| C20—C21 | 1.377 (9) | C24—H24 | 0.9300 |
| C21—C22 | 1.384 (16) | C25—H25 | 0.9300 |
| C22—C23 | 1.313 (19) | ||
| Br1···O1 | 3.318 (8) | HW2···Br1iii | 2.96 (8) |
| Br1···O1i | 3.383 (5) | HW2···H8Biii | 2.5800 |
| Br1···HW1i | 3.04 (9) | H3···Br1iv | 3.2000 |
| Br1···H17Bii | 3.1100 | H5···C8 | 3.0200 |
| Br1···H8Aiii | 3.0900 | H5···C20vi | 3.0900 |
| Br1···H3iv | 3.2000 | H5···H9A | 2.5900 |
| Br1···HW2i | 2.96 (8) | H7···O1 | 2.5000 |
| Br1···H8B | 3.2200 | H7···H17A | 2.5700 |
| Br1···H2ii | 3.1600 | H7···H8B | 2.4800 |
| Br1···H13v | 3.1000 | H8A···H10A | 2.4100 |
| O1···C17 | 3.236 (13) | H8A···Br1i | 3.0900 |
| O1···Br1iii | 3.383 (5) | H8A···C5 | 3.0600 |
| O1···C7 | 3.257 (10) | H8B···H10B | 2.5500 |
| O1···Br1 | 3.318 (8) | H8B···HW2i | 2.5800 |
| O1···H17A | 2.3800 | H8B···H7 | 2.4800 |
| O1···H7 | 2.5000 | H8B···Br1 | 3.2200 |
| N1···N2 | 2.175 (5) | H9A···C5 | 2.9900 |
| N2···N1 | 2.175 (5) | H9A···C12 | 2.9600 |
| C1···C6iv | 3.509 (7) | H9A···H5 | 2.5900 |
| C2···C8iv | 3.597 (7) | H9A···C6 | 2.9700 |
| C3···C7iv | 3.568 (9) | H9B···C13v | 3.0500 |
| C4···C7iv | 3.528 (8) | H9B···C12 | 2.8500 |
| C5···C9 | 3.574 (7) | H9B···H12 | 2.3300 |
| C6···C1iv | 3.509 (7) | H10A···H8A | 2.4100 |
| C7···O1 | 3.257 (10) | H10A···H16 | 2.3900 |
| C7···C3iv | 3.568 (9) | H10B···H25ii | 2.4300 |
| C7···C4iv | 3.528 (8) | H10B···H8B | 2.5500 |
| C8···C2iv | 3.597 (7) | H12···H9B | 2.3300 |
| C9···C5 | 3.574 (7) | H12···C25vii | 3.0700 |
| C17···O1 | 3.236 (13) | H12···C9 | 2.6900 |
| C1···H18B | 3.0900 | H13···Br1v | 3.1000 |
| C2···H17B | 2.9500 | H14···HW1v | 2.3300 |
| C5···H9A | 2.9900 | H15···H21v | 2.5400 |
| C5···H8A | 3.0600 | H16···H10A | 2.3900 |
| C6···H9A | 2.9700 | H17A···O1 | 2.3800 |
| C7···H18A | 3.0700 | H17A···H19A | 2.5500 |
| C8···H5 | 3.0200 | H17A···H7 | 2.5700 |
| C9···H12 | 2.6900 | H17B···C2 | 2.9500 |
| C11···H22vi | 3.0200 | H17B···H2 | 2.5600 |
| C11···H24ii | 2.9000 | H17B···Br1x | 3.1100 |
| C12···H9A | 2.9600 | H18A···C21 | 2.9400 |
| C12···H9B | 2.8500 | H18A···C7 | 3.0700 |
| C13···H9Bv | 3.0500 | H18B···C1 | 3.0900 |
| C15···H24ii | 3.0600 | H19A···H17A | 2.5500 |
| C16···H24ii | 2.8100 | H19A···H21 | 2.5100 |
| C17···H2 | 3.0200 | H19B···H25 | 2.3800 |
| C18···H23vii | 3.0700 | H21···H15v | 2.5400 |
| C20···H5viii | 3.0900 | H21···H19A | 2.5100 |
| C21···H18A | 2.9400 | H22···C11viii | 3.0200 |
| C25···H12ix | 3.0700 | H23···C18ix | 3.0700 |
| HW1···H14v | 2.3300 | H24···C11x | 2.9000 |
| HW1···Br1iii | 3.04 (9) | H24···C16x | 2.8100 |
| H2···Br1x | 3.1600 | H24···C15x | 3.0600 |
| H2···H17B | 2.5600 | H25···H10Bx | 2.4300 |
| H2···C17 | 3.0200 | H25···H19B | 2.3800 |
| HW1—O1—HW2 | 105 (9) | N2—C8—H8A | 109.00 |
| C1—N1—C7 | 107.9 (3) | C9—C8—H8A | 109.00 |
| C1—N1—C17 | 126.5 (4) | C9—C8—H8B | 109.00 |
| C7—N1—C17 | 125.6 (4) | N2—C8—H8B | 109.00 |
| C6—N2—C7 | 108.1 (4) | H8A—C8—H8B | 108.00 |
| C6—N2—C8 | 126.3 (4) | C8—C9—H9B | 109.00 |
| C7—N2—C8 | 125.6 (4) | C10—C9—H9A | 109.00 |
| N1—C1—C6 | 106.7 (4) | C10—C9—H9B | 109.00 |
| C2—C1—C6 | 121.8 (4) | H9A—C9—H9B | 108.00 |
| N1—C1—C2 | 131.5 (4) | C8—C9—H9A | 109.00 |
| C1—C2—C3 | 115.9 (4) | C9—C10—H10A | 108.00 |
| C2—C3—C4 | 122.1 (5) | C9—C10—H10B | 108.00 |
| C3—C4—C5 | 122.2 (5) | C11—C10—H10B | 108.00 |
| C4—C5—C6 | 115.9 (4) | H10A—C10—H10B | 107.00 |
| N2—C6—C1 | 106.2 (4) | C11—C10—H10A | 108.00 |
| C1—C6—C5 | 122.1 (4) | C11—C12—H12 | 120.00 |
| N2—C6—C5 | 131.8 (4) | C13—C12—H12 | 120.00 |
| N1—C7—N2 | 111.2 (5) | C12—C13—H13 | 120.00 |
| N2—C8—C9 | 111.1 (5) | C14—C13—H13 | 120.00 |
| C8—C9—C10 | 112.5 (6) | C15—C14—H14 | 120.00 |
| C9—C10—C11 | 117.0 (7) | C13—C14—H14 | 120.00 |
| C10—C11—C12 | 123.8 (6) | C16—C15—H15 | 120.00 |
| C12—C11—C16 | 117.7 (7) | C14—C15—H15 | 120.00 |
| C10—C11—C16 | 118.5 (8) | C11—C16—H16 | 120.00 |
| C11—C12—C13 | 120.6 (6) | C15—C16—H16 | 120.00 |
| C12—C13—C14 | 120.2 (9) | N1—C17—H17B | 110.00 |
| C13—C14—C15 | 120.8 (9) | C18—C17—H17A | 110.00 |
| C14—C15—C16 | 120.2 (8) | N1—C17—H17A | 110.00 |
| C11—C16—C15 | 120.5 (9) | H17A—C17—H17B | 108.00 |
| N1—C17—C18 | 108.6 (4) | C18—C17—H17B | 110.00 |
| C17—C18—C19 | 113.8 (5) | C17—C18—H18A | 109.00 |
| C18—C19—C20 | 110.4 (6) | C17—C18—H18B | 109.00 |
| C19—C20—C21 | 120.7 (8) | C19—C18—H18B | 109.00 |
| C19—C20—C25 | 121.4 (6) | H18A—C18—H18B | 108.00 |
| C21—C20—C25 | 117.9 (8) | C19—C18—H18A | 109.00 |
| C20—C21—C22 | 120.0 (10) | C18—C19—H19B | 110.00 |
| C21—C22—C23 | 120.8 (9) | C20—C19—H19A | 110.00 |
| C22—C23—C24 | 118.9 (12) | C20—C19—H19B | 110.00 |
| C23—C24—C25 | 121.2 (12) | H19A—C19—H19B | 108.00 |
| C20—C25—C24 | 120.9 (8) | C18—C19—H19A | 110.00 |
| C3—C2—H2 | 122.00 | C22—C21—H21 | 120.00 |
| C1—C2—H2 | 122.00 | C20—C21—H21 | 120.00 |
| C2—C3—H3 | 119.00 | C21—C22—H22 | 120.00 |
| C4—C3—H3 | 119.00 | C23—C22—H22 | 120.00 |
| C5—C4—H4 | 119.00 | C24—C23—H23 | 120.00 |
| C3—C4—H4 | 119.00 | C22—C23—H23 | 121.00 |
| C4—C5—H5 | 122.00 | C23—C24—H24 | 119.00 |
| C6—C5—H5 | 122.00 | C25—C24—H24 | 119.00 |
| N2—C7—H7 | 124.00 | C20—C25—H25 | 119.00 |
| N1—C7—H7 | 124.00 | C24—C25—H25 | 120.00 |
| C7—N1—C1—C2 | 178.3 (6) | C4—C5—C6—C1 | −0.6 (8) |
| C17—N1—C1—C2 | −3.8 (8) | N2—C8—C9—C10 | −177.5 (5) |
| C7—N1—C1—C6 | 0.2 (5) | C8—C9—C10—C11 | 173.4 (5) |
| C17—N1—C1—C6 | 178.1 (4) | C9—C10—C11—C12 | 24.9 (9) |
| C1—N1—C7—N2 | 0.3 (6) | C9—C10—C11—C16 | −157.8 (7) |
| C17—N1—C7—N2 | −177.7 (4) | C10—C11—C12—C13 | 174.1 (7) |
| C1—N1—C17—C18 | −85.3 (5) | C12—C11—C16—C15 | 3.1 (13) |
| C7—N1—C17—C18 | 92.3 (7) | C16—C11—C12—C13 | −3.2 (11) |
| C6—N2—C8—C9 | 72.9 (5) | C10—C11—C16—C15 | −174.4 (9) |
| C7—N2—C8—C9 | −107.4 (6) | C11—C12—C13—C14 | 1.0 (12) |
| C7—N2—C6—C5 | −177.9 (6) | C12—C13—C14—C15 | 1.4 (14) |
| C8—N2—C6—C5 | 1.8 (9) | C13—C14—C15—C16 | −1.5 (17) |
| C7—N2—C6—C1 | 0.6 (5) | C14—C15—C16—C11 | −0.8 (16) |
| C8—N2—C6—C1 | −179.7 (4) | N1—C17—C18—C19 | −175.7 (5) |
| C6—N2—C7—N1 | −0.6 (6) | C17—C18—C19—C20 | −179.6 (5) |
| C8—N2—C7—N1 | 179.7 (4) | C18—C19—C20—C21 | −81.0 (8) |
| N1—C1—C2—C3 | −177.6 (5) | C18—C19—C20—C25 | 97.9 (7) |
| C2—C1—C6—C5 | −0.1 (8) | C19—C20—C21—C22 | 173.4 (7) |
| N1—C1—C6—C5 | 178.3 (5) | C25—C20—C21—C22 | −5.5 (11) |
| C6—C1—C2—C3 | 0.4 (8) | C19—C20—C25—C24 | −177.4 (7) |
| C2—C1—C6—N2 | −178.8 (5) | C21—C20—C25—C24 | 1.5 (10) |
| N1—C1—C6—N2 | −0.5 (5) | C20—C21—C22—C23 | 4.6 (14) |
| C1—C2—C3—C4 | 0.1 (8) | C21—C22—C23—C24 | 0.6 (14) |
| C2—C3—C4—C5 | −0.9 (9) | C22—C23—C24—C25 | −4.8 (14) |
| C3—C4—C5—C6 | 1.1 (8) | C23—C24—C25—C20 | 3.8 (13) |
| C4—C5—C6—N2 | 177.8 (5) |
| Symmetry codes: (i) −x, y−1/2, −z+3/2; (ii) x, −y+1/2, z−1/2; (iii) −x, y+1/2, −z+3/2; (iv) −x, −y, −z+2; (v) −x−1, −y, −z+1; (vi) x, y−1, z; (vii) −x−1, y−1/2, −z+3/2; (viii) x, y+1, z; (ix) −x−1, y+1/2, −z+3/2; (x) x, −y+1/2, z+1/2. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C7—H7···O1 | 0.93 | 2.50 | 3.257 (10) | 139 |
| C17—H17A···O1 | 0.97 | 2.38 | 3.236 (13) | 148 |
| C24—H24···Cg1x | 0.93 | 2.84 | 3.771 (14) | 176 |
| Symmetry codes: (x) x, −y+1/2, z+1/2. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C7—H7···O1 | 0.93 | 2.50 | 3.257 (10) | 139 |
| C17—H17A···O1 | 0.97 | 2.38 | 3.236 (13) | 148 |
| C24—H24···Cg1i | 0.93 | 2.84 | 3.771 (14) | 176 |
| Symmetry codes: (i) x, −y+1/2, z+1/2. |
The authors acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDS II diffractometer (purchased under grant F.279 of the University Research Fund). HK and ÜY thank İnönü University Research Fund (Directed project BAPB-2008/60) for financial support ofthis study.
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Benzimidazole and related heterocyclic compounds have been extensively investigated because of their versatile pharmacological activity. They are also present in various naturally occurring drugs such as omeprazole, astemizole andemedastine difumarate (Sakai et al., 1989). Substituted benzimidazole moieties are estabilished pharmacophores in parasitic chemotheraphy. In some previous papers (Küçükbay et al., 2001, 2003, 2004), we reported the synthesis and antimicrobial activity of some benzimidazole derivatives. The objective of this study was to elucidate the crystal structure of the title compound, (I).
In the title molecule (I) (Fig. 1), the values of the geometric parameters are comparable with those of previously reported structures (Akkurt et al., 2004, 2005, 2007; Pınar et al., 2006; Yıldırım et al., 2005; Karaca et al., 2005). The benzimidazole unit (N1/N2/C1–C7) is essentially planar, with a maximum deviation of 0.020 (6) Å for C7 from the least-squares plane defined by the nine constituent atoms. The benzimidazole unit makes the dihedral angles of 83.6 (3) and 81.0 (3)° with the two terminal phenyl rings (C11–C16) and (C20–C25), respectively. The dihedral angle between the phenyl rings is 58.5 (4)°.
Molecular conformation is stabilized by intramolecular C—H···O hydrogen bonding interactions. The molecular packing (Fig. 2) is stabilized by a C—H···π interaction between a phenyl H atom and the phenyl ring of neighbouring molecules, with a C24—H24···Cg1ii separation of 2.84 Å [Table 1; Cg1 is the C11–C16 phenyl ring, symmetry code: (ii) x, -y + 1/2, z + 1/2]. In the crystal packing, there is also a π–π interaction with a distance of 3.512 (3) Å between the centroids of the five-membered ring (N1/N2/C1/C6/C7) (centroid Cg2) and the benzene ring (C1–C6) (centroid Cg3) of the benzimidazole unit of the adjacent molecule.