organic compounds
1,1′-[(2-Phenyl-2,3-dihydro-1H-benzimidazole-1,3-diyl)bis(methylene)]bis(1H-benzotriazole)
aDepartamento de Química, Universidad Nacional de Colombia, Ciudad Universitaria, Bogotá, Colombia, bUniversidad Nacional de Colombia, Sede Manizales, Colombia, and cInstitute of Physics ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8, Czech Republic
*Correspondence e-mail: ariverau@unal.edu.co
The imidazole ring in the title compound, C27H22N8, adopts a slight with the C atom carrying the phenyl ring being the flap atom. The phenyl ring is almost perpendicular to the mean plane of the imidazole ring [dihedral angle = 88.90 (7)°]. The (1H-benzotriazol-1-yl)methyl groups bound to the imidazole ring are positioned on the same side of the imidazole ring. The dihedral angle between these benzotriazolyl rings is 17.71 (5)°. The crystal packing is stabilized by a C—H⋯π interaction, which connects the molecules into zigzag chains running along the b axis.
Related literature
For a related structure see: Rivera et al. (2011). For the synthesis of the precursor and the title compound, see: Rivera et al. (2000, 2004). For ring conformations, see: Cremer & Pople (1975).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Agilent, 2010); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SIR2002 (Burla et al., 2003); program(s) used to refine structure: JANA2006 (Petříček et al., 2006); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: JANA2006.
Supporting information
10.1107/S1600536811055486/bt5766sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811055486/bt5766Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811055486/bt5766Isup3.cml
To a solution in methanol (5 ml) of 1,1'-(1H-benzimidazole-1,3(2H)-diyl)bis(methylene)-bis-(1H-benzotriazole) (0.27 mmol) prepared beforehand following previously described procedures (Rivera et al., 2004), was added benzaldehyde (0.27 mmol) dissolved in methanol (1 ml). The reaction mixture was refluxed with stirring for 1 h. The reaction mixture was allowed to stand for 3 h, at which time a white precipitate was formed, it was filtered, washed and dried. Mp = 453–455 K, yield: 19%.
1H NMR (400 MHz, CDCl3) δ (p.p.m.): 5.71 (d, J = 14.4 Hz, 2H, N—CH2—N, benzylic), 5.84 (s, 1H, N—CH—N) 5.84 (d, J = 14.4 Hz, 2H, N—CH2—N, benzylic), 6.85 (m, 2H, H-2 and H-3), 6.93 (m, 2H, H-4 and H-5), 7.03 (m, 2H, H-8 and H-9), 7.27 (m, 2H, H-15 and H-20), 7.37 (m, 5H, H-10, H-13,H-14, H-15, H-18, H-19 and H-20), 7.57 (td, J = 6.8 Hz, J4 = 1.6 Hz, 2H, H-6 and H-7), 7.93 (d, J = 6.4 Hz, 2H, H-12 and H– 17).
All H atoms atoms were positioned geometrically and treated as riding on their parent atoms. The isotropic atomic displacement parameters of hydrogen atoms were set to 1.2×Ueq of the parent atom. As the structure contains only light atoms, Friedel pairs were merged and the
has not been determined.Data collection: CrysAlis PRO (Agilent, 2010); cell
CrysAlis PRO (Agilent, 2010); data reduction: CrysAlis PRO (Agilent, 2010); program(s) used to solve structure: SIR2002 (Burla et al., 2003); program(s) used to refine structure: JANA2006 (Petříček et al., 2006); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: JANA2006 (Petříček et al., 2006).Fig. 1. A view of (I) with the numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. Packing of the molecules of the title compound view along b axis. |
C27H22N8 | F(000) = 960 |
Mr = 458.5 | Dx = 1.400 Mg m−3 |
Orthorhombic, P212121 | Cu Kα radiation, λ = 1.5418 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 20891 reflections |
a = 9.2721 (2) Å | θ = 3.2–67.0° |
b = 13.6449 (3) Å | µ = 0.70 mm−1 |
c = 17.1883 (4) Å | T = 120 K |
V = 2174.61 (8) Å3 | Prism, colourless |
Z = 4 | 0.38 × 0.25 × 0.18 mm |
Agilent Xcalibur diffractometer with an Atlas (Gemini ultra Cu) detector | 2206 independent reflections |
Radiation source: Enhance Ultra (Cu) X-ray Source | 2149 reflections with I > 3σ(I) |
Mirror monochromator | Rint = 0.030 |
Detector resolution: 10.3784 pixels mm-1 | θmax = 67.1°, θmin = 4.1° |
Rotation method data acquisition using ω scans | h = −11→10 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | k = −16→16 |
Tmin = 0.325, Tmax = 1 | l = −19→17 |
27948 measured reflections |
Refinement on F2 | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.027 | Weighting scheme based on measured s.u.'s w = 1/(σ2(I) + 0.0016I2) |
wR(F2) = 0.080 | (Δ/σ)max = 0.005 |
S = 1.80 | Δρmax = 0.12 e Å−3 |
2206 reflections | Δρmin = −0.12 e Å−3 |
317 parameters | Extinction correction: B-C type 1 Lorentzian isotropic (Becker & Coppens, 1974) |
0 restraints | Extinction coefficient: 2500 (500) |
88 constraints |
C27H22N8 | V = 2174.61 (8) Å3 |
Mr = 458.5 | Z = 4 |
Orthorhombic, P212121 | Cu Kα radiation |
a = 9.2721 (2) Å | µ = 0.70 mm−1 |
b = 13.6449 (3) Å | T = 120 K |
c = 17.1883 (4) Å | 0.38 × 0.25 × 0.18 mm |
Agilent Xcalibur diffractometer with an Atlas (Gemini ultra Cu) detector | 2206 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2010) | 2149 reflections with I > 3σ(I) |
Tmin = 0.325, Tmax = 1 | Rint = 0.030 |
27948 measured reflections |
R[F2 > 2σ(F2)] = 0.027 | 0 restraints |
wR(F2) = 0.080 | H-atom parameters constrained |
S = 1.80 | Δρmax = 0.12 e Å−3 |
2206 reflections | Δρmin = −0.12 e Å−3 |
317 parameters |
Experimental. CrysAlisPro (Agilent, 2010) Empirical absorption correction using spherical harmonics, implemented in SCALE3 ABSPACK scaling algorithm. |
Refinement. The refinement was carried out against all reflections. The conventional R-factor is always based on F. The goodness of fit as well as the weighted R-factor are based on F and F2 for refinement carried out on F and F2, respectively. The threshold expression is used only for calculating R-factors etc. and it is not relevant to the choice of reflections for refinement. The program used for refinement, Jana2006, uses the weighting scheme based on the experimental expectations, see _refine_ls_weighting_details, that does not force S to be one. Therefore the values of S are usually larger than the ones from the SHELX program. |
x | y | z | Uiso*/Ueq | ||
N1 | −0.07910 (16) | −0.13039 (11) | 0.82518 (8) | 0.0261 (4) | |
N2 | 0.05744 (16) | −0.14326 (11) | 0.83819 (8) | 0.0247 (4) | |
N3 | 0.13057 (15) | −0.13457 (9) | 0.76964 (8) | 0.0195 (4) | |
N4 | 0.37643 (15) | −0.06878 (9) | 0.78252 (8) | 0.0189 (4) | |
N5 | 0.40183 (15) | 0.08309 (9) | 0.83954 (8) | 0.0191 (4) | |
N6 | 0.20270 (16) | 0.15999 (10) | 0.90914 (8) | 0.0206 (4) | |
N7 | 0.16374 (17) | 0.16645 (11) | 0.98552 (9) | 0.0267 (5) | |
N8 | 0.02387 (18) | 0.16322 (11) | 0.99042 (9) | 0.0293 (5) | |
C1 | 0.03639 (18) | −0.11614 (10) | 0.71046 (10) | 0.0190 (4) | |
C2 | −0.0979 (2) | −0.11366 (11) | 0.74674 (10) | 0.0211 (5) | |
C3 | −0.2245 (2) | −0.09657 (11) | 0.70390 (10) | 0.0234 (5) | |
C4 | −0.2101 (2) | −0.08297 (12) | 0.62504 (10) | 0.0253 (5) | |
C5 | −0.07273 (19) | −0.08592 (12) | 0.58905 (11) | 0.0251 (5) | |
C6 | 0.0524 (2) | −0.10235 (12) | 0.62995 (10) | 0.0227 (5) | |
C7 | 0.28645 (18) | −0.15303 (11) | 0.76888 (9) | 0.0199 (4) | |
C8 | 0.35676 (18) | −0.01825 (11) | 0.85796 (9) | 0.0179 (4) | |
C9 | 0.39816 (17) | 0.00203 (11) | 0.72380 (10) | 0.0195 (4) | |
C10 | 0.41143 (17) | 0.09406 (11) | 0.75863 (10) | 0.0192 (4) | |
C11 | 0.43808 (18) | 0.17649 (12) | 0.71390 (10) | 0.0246 (5) | |
C12 | 0.45606 (18) | 0.16400 (13) | 0.63336 (11) | 0.0282 (5) | |
C13 | 0.44790 (19) | 0.07213 (14) | 0.59973 (11) | 0.0274 (5) | |
C14 | 0.41670 (17) | −0.01080 (13) | 0.64492 (10) | 0.0228 (5) | |
C15 | 0.44554 (18) | −0.06662 (11) | 0.92129 (9) | 0.0185 (4) | |
C16 | 0.59542 (19) | −0.07058 (11) | 0.91582 (10) | 0.0211 (5) | |
C17 | 0.6749 (2) | −0.11935 (13) | 0.97213 (10) | 0.0248 (5) | |
C18 | 0.6050 (2) | −0.16512 (12) | 1.03365 (10) | 0.0259 (5) | |
C19 | 0.4558 (2) | −0.16208 (13) | 1.03928 (10) | 0.0272 (5) | |
C20 | 0.3761 (2) | −0.11246 (12) | 0.98311 (10) | 0.0238 (5) | |
C21 | 0.35731 (18) | 0.16107 (11) | 0.89023 (10) | 0.0217 (5) | |
C22 | 0.08283 (18) | 0.15079 (11) | 0.86383 (10) | 0.0196 (4) | |
C23 | −0.0315 (2) | 0.15290 (11) | 0.91632 (10) | 0.0234 (5) | |
C24 | −0.1745 (2) | 0.14330 (13) | 0.89103 (11) | 0.0275 (5) | |
C25 | −0.19652 (19) | 0.13049 (12) | 0.81287 (11) | 0.0269 (5) | |
C26 | −0.0803 (2) | 0.12856 (11) | 0.75995 (10) | 0.0241 (5) | |
C27 | 0.06078 (18) | 0.13921 (11) | 0.78313 (10) | 0.0207 (4) | |
H3 | −0.317263 | −0.094484 | 0.728694 | 0.0281* | |
H4 | −0.294358 | −0.071301 | 0.593908 | 0.0303* | |
H5 | −0.066743 | −0.076054 | 0.533849 | 0.0301* | |
H6 | 0.144966 | −0.104274 | 0.605005 | 0.0273* | |
H7a | 0.309239 | −0.203189 | 0.80607 | 0.0239* | |
H7b | 0.312986 | −0.183038 | 0.720437 | 0.0239* | |
H8 | 0.260422 | −0.020574 | 0.878341 | 0.0215* | |
H11 | 0.44408 | 0.240279 | 0.737235 | 0.0295* | |
H12 | 0.474303 | 0.220137 | 0.601173 | 0.0339* | |
H13 | 0.463773 | 0.065014 | 0.544828 | 0.0328* | |
H14 | 0.408525 | −0.074498 | 0.621619 | 0.0273* | |
H16 | 0.643668 | −0.039498 | 0.873004 | 0.0254* | |
H17 | 0.778212 | −0.121475 | 0.968596 | 0.0297* | |
H18 | 0.660142 | −0.199046 | 1.072481 | 0.0311* | |
H19 | 0.407706 | −0.19407 | 1.081737 | 0.0327* | |
H20 | 0.272852 | −0.109849 | 0.98703 | 0.0285* | |
H21a | 0.382104 | 0.222943 | 0.867254 | 0.026* | |
H21b | 0.412579 | 0.158613 | 0.937415 | 0.026* | |
H24 | −0.253694 | 0.145605 | 0.926964 | 0.0329* | |
H25 | −0.293096 | 0.122668 | 0.79372 | 0.0323* | |
H26 | −0.100448 | 0.119452 | 0.70565 | 0.0289* | |
H27 | 0.139283 | 0.138788 | 0.746718 | 0.0248* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0243 (8) | 0.0316 (7) | 0.0223 (7) | −0.0027 (6) | 0.0026 (6) | 0.0007 (6) |
N2 | 0.0248 (8) | 0.0270 (7) | 0.0224 (7) | −0.0032 (6) | 0.0002 (6) | 0.0027 (6) |
N3 | 0.0199 (7) | 0.0200 (6) | 0.0186 (7) | −0.0020 (6) | 0.0001 (5) | 0.0009 (5) |
N4 | 0.0206 (7) | 0.0187 (6) | 0.0173 (7) | −0.0004 (5) | −0.0010 (6) | 0.0001 (5) |
N5 | 0.0205 (7) | 0.0163 (6) | 0.0203 (7) | 0.0005 (5) | −0.0014 (5) | −0.0007 (5) |
N6 | 0.0235 (7) | 0.0204 (6) | 0.0178 (7) | 0.0026 (5) | −0.0010 (6) | −0.0020 (5) |
N7 | 0.0334 (9) | 0.0276 (7) | 0.0192 (7) | 0.0056 (6) | 0.0003 (6) | −0.0024 (6) |
N8 | 0.0333 (9) | 0.0311 (7) | 0.0236 (8) | 0.0049 (6) | 0.0041 (6) | 0.0020 (6) |
C1 | 0.0212 (8) | 0.0136 (6) | 0.0224 (8) | −0.0009 (6) | −0.0026 (7) | −0.0005 (6) |
C2 | 0.0228 (9) | 0.0170 (7) | 0.0234 (8) | −0.0018 (6) | 0.0003 (7) | −0.0004 (6) |
C3 | 0.0198 (8) | 0.0211 (7) | 0.0295 (9) | −0.0005 (6) | 0.0009 (7) | −0.0011 (6) |
C4 | 0.0252 (9) | 0.0223 (8) | 0.0283 (9) | 0.0014 (7) | −0.0043 (7) | 0.0013 (7) |
C5 | 0.0262 (10) | 0.0260 (8) | 0.0231 (9) | 0.0004 (7) | −0.0014 (7) | 0.0018 (7) |
C6 | 0.0237 (9) | 0.0219 (7) | 0.0227 (9) | 0.0000 (6) | 0.0014 (7) | 0.0000 (6) |
C7 | 0.0194 (8) | 0.0164 (7) | 0.0238 (8) | −0.0003 (6) | −0.0029 (6) | −0.0006 (6) |
C8 | 0.0173 (8) | 0.0181 (7) | 0.0184 (8) | −0.0003 (6) | 0.0009 (6) | −0.0001 (6) |
C9 | 0.0138 (7) | 0.0228 (7) | 0.0219 (8) | 0.0008 (6) | −0.0004 (6) | 0.0034 (6) |
C10 | 0.0139 (8) | 0.0224 (7) | 0.0214 (8) | 0.0009 (6) | −0.0010 (6) | 0.0018 (6) |
C11 | 0.0205 (8) | 0.0224 (7) | 0.0308 (9) | −0.0013 (6) | −0.0019 (7) | 0.0059 (7) |
C12 | 0.0205 (9) | 0.0334 (9) | 0.0309 (10) | −0.0033 (7) | −0.0016 (7) | 0.0129 (7) |
C13 | 0.0192 (9) | 0.0414 (9) | 0.0215 (9) | 0.0009 (7) | 0.0000 (7) | 0.0062 (7) |
C14 | 0.0175 (8) | 0.0306 (8) | 0.0202 (8) | 0.0016 (7) | −0.0008 (6) | 0.0007 (7) |
C15 | 0.0237 (8) | 0.0162 (7) | 0.0157 (8) | 0.0006 (6) | −0.0007 (6) | −0.0013 (6) |
C16 | 0.0240 (9) | 0.0207 (7) | 0.0188 (8) | −0.0019 (6) | 0.0023 (7) | 0.0000 (6) |
C17 | 0.0234 (9) | 0.0271 (8) | 0.0238 (9) | 0.0027 (6) | −0.0037 (7) | −0.0041 (7) |
C18 | 0.0354 (10) | 0.0241 (7) | 0.0183 (8) | 0.0046 (7) | −0.0045 (7) | 0.0007 (6) |
C19 | 0.0358 (10) | 0.0257 (8) | 0.0202 (8) | −0.0025 (7) | 0.0033 (7) | 0.0032 (7) |
C20 | 0.0232 (9) | 0.0250 (8) | 0.0231 (9) | −0.0011 (7) | 0.0033 (7) | −0.0005 (6) |
C21 | 0.0211 (8) | 0.0197 (7) | 0.0241 (8) | 0.0000 (6) | −0.0030 (7) | −0.0037 (6) |
C22 | 0.0208 (8) | 0.0149 (6) | 0.0230 (8) | 0.0020 (6) | −0.0009 (7) | 0.0014 (6) |
C23 | 0.0285 (9) | 0.0180 (7) | 0.0236 (8) | 0.0034 (6) | 0.0033 (7) | 0.0028 (6) |
C24 | 0.0233 (9) | 0.0228 (8) | 0.0362 (10) | 0.0025 (7) | 0.0078 (7) | 0.0054 (7) |
C25 | 0.0213 (9) | 0.0203 (7) | 0.0392 (11) | 0.0000 (7) | −0.0026 (7) | 0.0057 (7) |
C26 | 0.0263 (9) | 0.0187 (7) | 0.0273 (9) | 0.0013 (7) | −0.0039 (7) | 0.0009 (6) |
C27 | 0.0213 (8) | 0.0195 (7) | 0.0212 (8) | 0.0018 (6) | 0.0003 (7) | −0.0002 (6) |
N1—N2 | 1.298 (2) | C10—C11 | 1.385 (2) |
N1—C2 | 1.379 (2) | C11—C12 | 1.405 (3) |
N2—N3 | 1.365 (2) | C11—H11 | 0.96 |
N3—C1 | 1.364 (2) | C12—C13 | 1.382 (3) |
N3—C7 | 1.467 (2) | C12—H12 | 0.96 |
N4—C7 | 1.440 (2) | C13—C14 | 1.403 (3) |
N4—C8 | 1.480 (2) | C13—H13 | 0.96 |
N4—C9 | 1.412 (2) | C14—H14 | 0.96 |
N5—C8 | 1.479 (2) | C15—C16 | 1.394 (2) |
N5—C10 | 1.402 (2) | C15—C20 | 1.391 (2) |
N5—C21 | 1.436 (2) | C16—C17 | 1.387 (2) |
N6—N7 | 1.364 (2) | C16—H16 | 0.96 |
N6—C21 | 1.470 (2) | C17—C18 | 1.389 (2) |
N6—C22 | 1.363 (2) | C17—H17 | 0.96 |
N7—N8 | 1.300 (2) | C18—C19 | 1.387 (3) |
N8—C23 | 1.380 (2) | C18—H18 | 0.96 |
C1—C2 | 1.393 (2) | C19—C20 | 1.392 (2) |
C1—C6 | 1.404 (2) | C19—H19 | 0.96 |
C2—C3 | 1.405 (3) | C20—H20 | 0.96 |
C3—C4 | 1.375 (3) | C21—H21a | 0.96 |
C3—H3 | 0.96 | C21—H21b | 0.96 |
C4—C5 | 1.417 (3) | C22—C23 | 1.392 (2) |
C4—H4 | 0.96 | C22—C27 | 1.411 (2) |
C5—C6 | 1.375 (3) | C23—C24 | 1.402 (3) |
C5—H5 | 0.96 | C24—C25 | 1.370 (3) |
C6—H6 | 0.96 | C24—H24 | 0.96 |
C7—H7a | 0.96 | C25—C26 | 1.411 (3) |
C7—H7b | 0.96 | C25—H25 | 0.96 |
C8—C15 | 1.516 (2) | C26—C27 | 1.375 (2) |
C8—H8 | 0.96 | C26—H26 | 0.96 |
C9—C10 | 1.397 (2) | C27—H27 | 0.96 |
C9—C14 | 1.378 (2) | ||
N2—N1—C2 | 108.32 (14) | C10—C11—H11 | 120.9899 |
N1—N2—N3 | 108.92 (13) | C12—C11—H11 | 120.9894 |
N2—N3—C1 | 109.99 (14) | C11—C12—C13 | 121.04 (17) |
N2—N3—C7 | 118.83 (13) | C11—C12—H12 | 119.4794 |
C1—N3—C7 | 130.98 (14) | C13—C12—H12 | 119.4802 |
C7—N4—C8 | 116.31 (13) | C12—C13—C14 | 120.74 (17) |
C7—N4—C9 | 120.85 (13) | C12—C13—H13 | 119.6288 |
C8—N4—C9 | 108.98 (12) | C14—C13—H13 | 119.6289 |
C8—N5—C10 | 109.28 (12) | C9—C14—C13 | 117.92 (16) |
C8—N5—C21 | 118.80 (13) | C9—C14—H14 | 121.0407 |
C10—N5—C21 | 122.76 (13) | C13—C14—H14 | 121.0413 |
N7—N6—C21 | 118.06 (14) | C8—C15—C16 | 120.64 (14) |
N7—N6—C22 | 109.87 (14) | C8—C15—C20 | 119.52 (15) |
C21—N6—C22 | 132.05 (14) | C16—C15—C20 | 119.73 (15) |
N6—N7—N8 | 108.92 (14) | C15—C16—C17 | 120.10 (15) |
N7—N8—C23 | 108.32 (15) | C15—C16—H16 | 119.9515 |
N3—C1—C2 | 104.06 (14) | C17—C16—H16 | 119.9514 |
N3—C1—C6 | 133.79 (16) | C16—C17—C18 | 119.92 (17) |
C2—C1—C6 | 122.15 (16) | C16—C17—H17 | 120.0389 |
N1—C2—C1 | 108.71 (15) | C18—C17—H17 | 120.0394 |
N1—C2—C3 | 130.20 (16) | C17—C18—C19 | 120.36 (16) |
C1—C2—C3 | 121.09 (15) | C17—C18—H18 | 119.8197 |
C2—C3—C4 | 117.25 (16) | C19—C18—H18 | 119.819 |
C2—C3—H3 | 121.3774 | C18—C19—C20 | 119.71 (16) |
C4—C3—H3 | 121.3773 | C18—C19—H19 | 120.1465 |
C3—C4—C5 | 120.93 (17) | C20—C19—H19 | 120.1462 |
C3—C4—H4 | 119.5339 | C15—C20—C19 | 120.18 (17) |
C5—C4—H4 | 119.5344 | C15—C20—H20 | 119.9089 |
C4—C5—C6 | 122.70 (17) | C19—C20—H20 | 119.9072 |
C4—C5—H5 | 118.6524 | N5—C21—N6 | 114.03 (13) |
C6—C5—H5 | 118.6526 | N5—C21—H21a | 109.4706 |
C1—C6—C5 | 115.89 (16) | N5—C21—H21b | 109.4714 |
C1—C6—H6 | 122.0553 | N6—C21—H21a | 109.4709 |
C5—C6—H6 | 122.0541 | N6—C21—H21b | 109.4714 |
N3—C7—N4 | 115.62 (12) | H21a—C21—H21b | 104.4982 |
N3—C7—H7a | 109.4709 | N6—C22—C23 | 104.40 (14) |
N3—C7—H7b | 109.471 | N6—C22—C27 | 133.65 (16) |
N4—C7—H7a | 109.4713 | C23—C22—C27 | 121.94 (16) |
N4—C7—H7b | 109.4716 | N8—C23—C22 | 108.49 (16) |
H7a—C7—H7b | 102.5346 | N8—C23—C24 | 130.34 (17) |
N4—C8—N5 | 102.31 (12) | C22—C23—C24 | 121.16 (16) |
N4—C8—C15 | 111.06 (12) | C23—C24—C25 | 117.19 (17) |
N4—C8—H8 | 114.7756 | C23—C24—H24 | 121.4053 |
N5—C8—C15 | 114.04 (13) | C25—C24—H24 | 121.4053 |
N5—C8—H8 | 111.8387 | C24—C25—C26 | 121.39 (17) |
C15—C8—H8 | 103.2226 | C24—C25—H25 | 119.3049 |
N4—C9—C10 | 108.75 (14) | C26—C25—H25 | 119.3045 |
N4—C9—C14 | 129.38 (15) | C25—C26—C27 | 122.55 (16) |
C10—C9—C14 | 121.67 (15) | C25—C26—H26 | 118.7268 |
N5—C10—C9 | 108.88 (13) | C27—C26—H26 | 118.7256 |
N5—C10—C11 | 130.47 (15) | C22—C27—C26 | 115.76 (15) |
C9—C10—C11 | 120.54 (15) | C22—C27—H27 | 122.1215 |
C10—C11—C12 | 118.02 (16) | C26—C27—H27 | 122.1225 |
Cg6 is the centroid of the C15–C20 aromatic ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C12—H12···Cg6i | 0.96 | 2.61 | 3.5597 (19) | 169 |
Symmetry code: (i) x+3/2, −y+1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C27H22N8 |
Mr | 458.5 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 120 |
a, b, c (Å) | 9.2721 (2), 13.6449 (3), 17.1883 (4) |
V (Å3) | 2174.61 (8) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 0.70 |
Crystal size (mm) | 0.38 × 0.25 × 0.18 |
Data collection | |
Diffractometer | Agilent Xcalibur diffractometer with an Atlas (Gemini ultra Cu) detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2010) |
Tmin, Tmax | 0.325, 1 |
No. of measured, independent and observed [I > 3σ(I)] reflections | 27948, 2206, 2149 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.597 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.027, 0.080, 1.80 |
No. of reflections | 2206 |
No. of parameters | 317 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.12, −0.12 |
Computer programs: CrysAlis PRO (Agilent, 2010), SIR2002 (Burla et al., 2003), JANA2006 (Petříček et al., 2006), DIAMOND (Brandenburg & Putz, 2005).
Cg6 is the centroid of the C15–C20 aromatic ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C12—H12···Cg6i | 0.96 | 2.61 | 3.5597 (19) | 169 |
Symmetry code: (i) x+3/2, −y+1/2, −z+1. |
Acknowledgements
We acknowledge the Dirección de Investigaciones, Sede Bogotá (DIB) de la Universidad Nacional de Colombia, for financial support of this work, as well as the Institutional research plan No. AVOZ10100521 of the Institute of Physics and the Praemium Academiae project of the Academy of Sciences of the Czech Republic.
References
Agilent (2010). CrysAlis PRO. Agilent Technologies, Yarnton, England. Google Scholar
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Considerable work from our laboratory has been concerned with the synthesis of benzotriazol-1-ylmethyl groups attached to imidazolidine-like nitrogen atoms in heterocyclic aminals. The title compound (I) was synthesized via route modified from that reported (Rivera et al., 2000) by reaction of 1,1'-(1H-benzimidazole-1,3(2H)-diyl)bis(methylene)-bis-(1H-benzotriazole) with benzaldehyde. The whole procedure is a two-step method with a good overall yield. The starting compound was prepared according to literature procedure (Rivera et al., 2004). The structure of this precursor, whose structure we reported previously (Rivera et al., 2011), showed that the compound exists in a conformation in which the benzotriazol-1-ylmethyl moieties arranged in anti disposition with respect to benzimidazolidine ring. In the title compound, the presence of a phenyl substituent on the central carbon of the benzimidazolidine ring may influence the pendant substituent to occupy a syn conformation.
Although the molecule potentially exhibits mirror symmetry, in the crystalline state the spatial disposition of two 1H-benzotriazol-1-yl)methyl units are not perfectly identical (Figure 1). However, the measured bond lengths and angles are extremely close and consequently only mean values will be cited in this discussion. The interatomic distances and angles of title compound (I) are comparable with a related structure (Rivera et al., 2011). The imidazole ring is an envelope conformation with the central C8 atom being the flap atom as seen in the puckering parameters Q(2) = 0.1259 (16) Å and ϕ2 = 41.2 (7) ° (Cremer & Pople, 1975). With reference to this plane, the phenyl ring lies to one side of the plane and is almost perpendicular to the mean plane of the heterocyclic ring, with a dihedral angle of 88.898 (66)°. The (1H-benzotriazol-1-yl)methyl groups bound to the central heterocyclic ring are almost syn as seen in the C7—N4···N5—C21 torsion angle of 9.91 (37)°. This is contrary to what is observed in the related structure (Rivera et al., 2011), where the two (benzotriazol-1-yl)methyl groups are located in an anti position with respect to the benzimidazoline moiety. In the title compund the dihedral angle between these benzotriazolyl rings is 17.712 (47)°.
In benzimidazoline ring occurs H12···Cg6 = 2.61 (5) Å, which connect the molecules into a chain along the b axis (Figure 2), Cg6 is the centroid of ring C15—C20.