| Literature DB >> 26594449 |
Kaoutar Bouayad1, Youssef Kandri Rodi2, Youness Ouzidan2, El Mokhtar Essassi3, Mohamed Saadi4, Lahcen El Ammari4.
Abstract
In the title compound, C17H19ClN4O5, the benzimidazole fused-ring system is essentially planar, the maximum deviation from the mean plane being 0.06 (1) Å. Both oxazolidine rings are nearly planar, the maximum deviations from the mean planes are 0.071 (13) and 0.070 (10) Å. The dihedral angle between the mean planes of the oxazolidine rings is 69.9 (7)°. The benzimidazole mean plane makes the dihedral angles of 43.9 (6) and 45.6 (6)° with the two oxazolidine rings. In the crystal, the mol-ecules are linked together by weak C-H⋯O hydrogen bonds building zigzag tapes running along the c axis. The Cl atom is split over two positions with an occupancy ratio of 0.567 (7):0.433 (7). This means that the reaction yields two isomers, A and B; the A component has the Cl-atom substituent in the 5-position of the benzimidazolone ring and the B component has the Cl atom in the 6-position. The two isomers form the disordered co-crystal, with a nearly half Cl atom in each of them, as indicated by the occupancy ratio. The crystal structure was refined as an inversion twin.Entities:
Keywords: benzimidazol-2-one derivative; crystal structure; hydrogen bonding
Year: 2015 PMID: 26594449 PMCID: PMC4647354 DOI: 10.1107/S2056989015016102
Source DB: PubMed Journal: Acta Crystallogr E Crystallogr Commun
| C17H19ClN4O5 | |
| Mo | |
| Orthorhombic, | Cell parameters from 3701 reflections |
| θ = 1.5–26.4° | |
| µ = 0.25 mm−1 | |
| Block, colourless | |
| 0.35 × 0.31 × 0.26 mm | |
| Bruker X8 APEX diffractometer | 3701 independent reflections |
| Radiation source: fine-focus sealed tube | 1697 reflections with |
| Graphite monochromator | |
| φ and ω scans | θmax = 26.4°, θmin = 1.5° |
| Absorption correction: multi-scan ( | |
| 9588 measured reflections |
| Refinement on | Hydrogen site location: inferred from neighbouring sites |
| Least-squares matrix: full | H-atom parameters constrained |
| (Δ/σ)max < 0.001 | |
| Δρmax = 0.21 e Å−3 | |
| 3701 reflections | Δρmin = −0.16 e Å−3 |
| 255 parameters | Absolute structure: Refined as an inversion twin. |
| 4 restraints | Absolute structure parameter: 0.5 (5) |
| 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. Refined as a 2-component inversion twin. |
| Occ. (<1) | |||||
| C1 | 0.5061 (11) | 0.6238 (11) | 0.3946 (17) | 0.141 (6) | |
| H1A | 0.5660 | 0.5943 | 0.3660 | 0.169* | |
| H1B | 0.5119 | 0.6955 | 0.3879 | 0.169* | |
| C2 | 0.4284 (10) | 0.5885 (9) | 0.3051 (13) | 0.094 (4) | |
| H2A | 0.3888 | 0.6431 | 0.2737 | 0.113* | |
| H2B | 0.4527 | 0.5523 | 0.2264 | 0.113* | |
| C3 | 0.4066 (8) | 0.5371 (8) | 0.5275 (13) | 0.060 (3) | |
| C4 | 0.2918 (6) | 0.4698 (6) | 0.3603 (12) | 0.068 (3) | |
| H4A | 0.2585 | 0.5066 | 0.2894 | 0.082* | |
| H4B | 0.2501 | 0.4650 | 0.4395 | 0.082* | |
| C5 | 0.3133 (7) | 0.3677 (7) | 0.3089 (10) | 0.074 (3) | |
| H5A | 0.2552 | 0.3394 | 0.2721 | 0.089* | |
| H5B | 0.3582 | 0.3733 | 0.2336 | 0.089* | |
| C6 | 0.4456 (8) | 0.2814 (7) | 0.4386 (11) | 0.058 (3) | |
| C7 | 0.5213 (9) | 0.3189 (9) | 0.3704 (15) | 0.093 (4) | |
| H7 | 0.5100 | 0.3570 | 0.2923 | 0.111* | |
| C8 | 0.6121 (8) | 0.3041 (8) | 0.4091 (11) | 0.093 (3) | |
| H8 | 0.6648 | 0.3351 | 0.3704 | 0.112* | 0.567 (7) |
| C9 | 0.6151 (7) | 0.2357 (7) | 0.5151 (15) | 0.085 (4) | |
| H9 | 0.6762 | 0.2161 | 0.5395 | 0.102* | 0.433 (7) |
| C10 | 0.5401 (8) | 0.1888 (8) | 0.5959 (13) | 0.087 (4) | |
| H10 | 0.5521 | 0.1462 | 0.6692 | 0.104* | |
| C11 | 0.4446 (10) | 0.2151 (7) | 0.5506 (11) | 0.067 (3) | |
| C12 | 0.2912 (5) | 0.2497 (9) | 0.5031 (13) | 0.0513 (14) | |
| C13 | 0.3124 (7) | 0.1304 (6) | 0.6914 (9) | 0.071 (3) | |
| H13A | 0.2538 | 0.1570 | 0.7293 | 0.085* | |
| H13B | 0.3582 | 0.1240 | 0.7654 | 0.085* | |
| C14 | 0.2935 (7) | 0.0280 (6) | 0.6264 (11) | 0.067 (3) | |
| H14A | 0.2558 | −0.0113 | 0.6898 | 0.080* | |
| H14B | 0.2560 | 0.0373 | 0.5437 | 0.080* | |
| C15 | 0.4330 (8) | −0.0839 (8) | 0.6883 (11) | 0.068 (3) | |
| H15A | 0.3959 | −0.1385 | 0.7256 | 0.081* | |
| H15B | 0.4552 | −0.0423 | 0.7632 | 0.081* | |
| C16 | 0.5157 (7) | −0.1221 (8) | 0.6022 (10) | 0.075 (3) | |
| H16A | 0.5743 | −0.0876 | 0.6247 | 0.090* | |
| H16B | 0.5248 | −0.1931 | 0.6146 | 0.090* | |
| C17 | 0.4082 (9) | −0.0368 (8) | 0.4637 (11) | 0.066 (3) | |
| N1 | 0.3770 (6) | 0.5234 (5) | 0.3986 (8) | 0.052 (2) | |
| N2 | 0.3510 (7) | 0.3007 (6) | 0.4064 (9) | 0.064 (2) | |
| N3 | 0.3503 (6) | 0.1993 (5) | 0.5834 (8) | 0.0473 (19) | |
| N4 | 0.3790 (6) | −0.0276 (6) | 0.5914 (9) | 0.059 (2) | |
| O1 | 0.4858 (6) | 0.5965 (7) | 0.5304 (9) | 0.094 (3) | |
| O2 | 0.3747 (6) | 0.4989 (7) | 0.6326 (8) | 0.094 (3) | |
| O3 | 0.2045 (3) | 0.2489 (6) | 0.4997 (11) | 0.0705 (11) | |
| O4 | 0.3742 (6) | −0.0045 (6) | 0.3617 (8) | 0.096 (3) | |
| O5 | 0.4846 (6) | −0.0991 (6) | 0.4629 (8) | 0.087 (3) | |
| Cl1A | 0.7305 (5) | 0.2867 (5) | 0.4090 (11) | 0.103 (4) | 0.433 (7) |
| Cl1B | 0.7313 (5) | 0.2114 (5) | 0.5813 (11) | 0.140 (4) | 0.567 (7) |
| C1 | 0.139 (13) | 0.160 (14) | 0.123 (13) | −0.094 (11) | 0.019 (12) | 0.004 (12) |
| C2 | 0.131 (13) | 0.087 (10) | 0.064 (8) | −0.026 (9) | 0.012 (9) | 0.007 (7) |
| C3 | 0.053 (8) | 0.066 (7) | 0.060 (7) | −0.007 (5) | −0.007 (6) | −0.006 (6) |
| C4 | 0.067 (9) | 0.056 (7) | 0.082 (8) | −0.004 (5) | −0.033 (6) | 0.012 (6) |
| C5 | 0.104 (10) | 0.066 (8) | 0.053 (6) | −0.031 (6) | −0.025 (7) | 0.003 (6) |
| C6 | 0.040 (7) | 0.060 (6) | 0.074 (8) | −0.013 (6) | 0.008 (6) | −0.028 (6) |
| C7 | 0.070 (8) | 0.105 (9) | 0.103 (8) | −0.019 (7) | 0.012 (7) | −0.040 (7) |
| C8 | 0.076 (8) | 0.106 (9) | 0.097 (7) | −0.015 (6) | 0.012 (6) | −0.010 (6) |
| C9 | 0.047 (5) | 0.071 (8) | 0.137 (11) | 0.024 (5) | −0.028 (8) | −0.047 (7) |
| C10 | 0.099 (10) | 0.077 (7) | 0.084 (7) | 0.048 (8) | −0.036 (7) | −0.051 (6) |
| C11 | 0.099 (11) | 0.044 (5) | 0.058 (7) | 0.009 (6) | −0.012 (7) | −0.020 (6) |
| C12 | 0.070 (4) | 0.041 (3) | 0.043 (3) | −0.013 (7) | 0.002 (7) | −0.003 (2) |
| C13 | 0.120 (11) | 0.045 (6) | 0.047 (5) | 0.003 (6) | 0.021 (6) | 0.008 (5) |
| C14 | 0.102 (10) | 0.046 (6) | 0.052 (6) | 0.018 (6) | 0.018 (6) | 0.007 (5) |
| C15 | 0.083 (9) | 0.063 (8) | 0.056 (6) | 0.014 (6) | −0.006 (6) | 0.013 (6) |
| C16 | 0.089 (8) | 0.082 (7) | 0.055 (6) | 0.023 (6) | −0.013 (6) | −0.007 (6) |
| C17 | 0.079 (10) | 0.080 (8) | 0.038 (6) | 0.000 (7) | 0.006 (7) | −0.003 (6) |
| N1 | 0.075 (6) | 0.037 (5) | 0.042 (4) | −0.019 (4) | 0.000 (5) | −0.004 (4) |
| N2 | 0.090 (7) | 0.048 (5) | 0.055 (5) | −0.005 (5) | 0.005 (6) | −0.007 (4) |
| N3 | 0.054 (5) | 0.041 (5) | 0.047 (4) | 0.003 (4) | 0.001 (4) | 0.010 (4) |
| N4 | 0.079 (7) | 0.059 (6) | 0.040 (4) | 0.004 (5) | 0.015 (5) | 0.013 (4) |
| O1 | 0.096 (7) | 0.120 (7) | 0.064 (5) | −0.036 (6) | −0.001 (5) | −0.019 (5) |
| O2 | 0.097 (7) | 0.135 (7) | 0.051 (5) | −0.013 (5) | 0.005 (4) | 0.012 (5) |
| O3 | 0.055 (3) | 0.068 (2) | 0.090 (3) | −0.008 (5) | 0.002 (7) | −0.0005 (19) |
| O4 | 0.098 (7) | 0.151 (8) | 0.038 (4) | 0.031 (5) | 0.003 (4) | 0.019 (5) |
| O5 | 0.082 (6) | 0.113 (7) | 0.066 (5) | 0.037 (5) | 0.015 (5) | −0.008 (5) |
| Cl1A | 0.067 (6) | 0.075 (5) | 0.166 (8) | −0.006 (4) | 0.006 (5) | 0.010 (5) |
| Cl1B | 0.071 (5) | 0.123 (5) | 0.226 (9) | 0.038 (4) | −0.040 (5) | 0.020 (6) |
| C1—O1 | 1.401 (15) | C9—Cl1A | 2.042 (15) |
| C1—C2 | 1.475 (17) | C9—H9 | 0.9300 |
| C1—H1A | 0.9700 | C10—C11 | 1.456 (15) |
| C1—H1B | 0.9700 | C10—H10 | 0.9300 |
| C2—N1 | 1.454 (13) | C11—N3 | 1.379 (14) |
| C2—H2A | 0.9700 | C12—O3 | 1.219 (6) |
| C2—H2B | 0.9700 | C12—N3 | 1.326 (12) |
| C3—O2 | 1.230 (14) | C12—N2 | 1.436 (13) |
| C3—N1 | 1.334 (14) | C13—N3 | 1.499 (11) |
| C3—O1 | 1.369 (12) | C13—C14 | 1.538 (12) |
| C4—N1 | 1.447 (11) | C13—H13A | 0.9700 |
| C4—C5 | 1.491 (12) | C13—H13B | 0.9700 |
| C4—H4A | 0.9700 | C14—N4 | 1.455 (11) |
| C4—H4B | 0.9700 | C14—H14A | 0.9700 |
| C5—N2 | 1.411 (12) | C14—H14B | 0.9700 |
| C5—H5A | 0.9700 | C15—N4 | 1.428 (12) |
| C5—H5B | 0.9700 | C15—C16 | 1.522 (13) |
| C6—C7 | 1.352 (16) | C15—H15A | 0.9700 |
| C6—N2 | 1.391 (13) | C15—H15B | 0.9700 |
| C6—C11 | 1.408 (8) | C16—O5 | 1.458 (11) |
| C7—C8 | 1.345 (10) | C16—H16A | 0.9700 |
| C7—H7 | 0.9300 | C16—H16B | 0.9700 |
| C8—C9 | 1.383 (11) | C17—O4 | 1.183 (14) |
| C8—Cl1A | 1.680 (13) | C17—N4 | 1.315 (14) |
| C8—H8 | 0.9300 | C17—O5 | 1.362 (13) |
| C9—C10 | 1.458 (10) | Cl1A—Cl1B | 1.959 (6) |
| C9—Cl1B | 1.786 (10) | ||
| O1—C1—C2 | 108.8 (11) | N3—C11—C6 | 106.6 (12) |
| O1—C1—H1A | 109.9 | N3—C11—C10 | 141.1 (11) |
| C2—C1—H1A | 109.9 | C6—C11—C10 | 112.2 (14) |
| O1—C1—H1B | 109.9 | O3—C12—N3 | 129.7 (12) |
| C2—C1—H1B | 109.9 | O3—C12—N2 | 124.8 (12) |
| H1A—C1—H1B | 108.3 | N3—C12—N2 | 105.3 (5) |
| N1—C2—C1 | 101.1 (10) | N3—C13—C14 | 109.0 (7) |
| N1—C2—H2A | 111.6 | N3—C13—H13A | 109.9 |
| C1—C2—H2A | 111.6 | C14—C13—H13A | 109.9 |
| N1—C2—H2B | 111.6 | N3—C13—H13B | 109.9 |
| C1—C2—H2B | 111.6 | C14—C13—H13B | 109.9 |
| H2A—C2—H2B | 109.4 | H13A—C13—H13B | 108.3 |
| O2—C3—N1 | 127.6 (10) | N4—C14—C13 | 114.4 (8) |
| O2—C3—O1 | 121.5 (11) | N4—C14—H14A | 108.7 |
| N1—C3—O1 | 110.7 (11) | C13—C14—H14A | 108.7 |
| N1—C4—C5 | 112.2 (8) | N4—C14—H14B | 108.7 |
| N1—C4—H4A | 109.2 | C13—C14—H14B | 108.7 |
| C5—C4—H4A | 109.2 | H14A—C14—H14B | 107.6 |
| N1—C4—H4B | 109.2 | N4—C15—C16 | 102.8 (8) |
| C5—C4—H4B | 109.2 | N4—C15—H15A | 111.2 |
| H4A—C4—H4B | 107.9 | C16—C15—H15A | 111.2 |
| N2—C5—C4 | 115.9 (8) | N4—C15—H15B | 111.2 |
| N2—C5—H5A | 108.3 | C16—C15—H15B | 111.2 |
| C4—C5—H5A | 108.3 | H15A—C15—H15B | 109.1 |
| N2—C5—H5B | 108.3 | O5—C16—C15 | 102.2 (8) |
| C4—C5—H5B | 108.3 | O5—C16—H16A | 111.3 |
| H5A—C5—H5B | 107.4 | C15—C16—H16A | 111.3 |
| C7—C6—N2 | 124.9 (12) | O5—C16—H16B | 111.3 |
| C7—C6—C11 | 128.7 (15) | C15—C16—H16B | 111.3 |
| N2—C6—C11 | 106.4 (12) | H16A—C16—H16B | 109.2 |
| C8—C7—C6 | 123.6 (14) | O4—C17—N4 | 129.3 (12) |
| C8—C7—H7 | 118.2 | O4—C17—O5 | 122.5 (11) |
| C6—C7—H7 | 118.2 | N4—C17—O5 | 108.0 (10) |
| C7—C8—C9 | 109.6 (11) | C3—N1—C4 | 124.7 (9) |
| C7—C8—Cl1A | 163.7 (10) | C3—N1—C2 | 110.5 (9) |
| C9—C8—Cl1A | 83.0 (9) | C4—N1—C2 | 123.4 (9) |
| C7—C8—H8 | 125.2 | C6—N2—C5 | 129.0 (10) |
| C9—C8—H8 | 125.2 | C6—N2—C12 | 108.8 (9) |
| Cl1A—C8—H8 | 43.4 | C5—N2—C12 | 121.7 (10) |
| C8—C9—C10 | 131.9 (10) | C12—N3—C11 | 112.8 (8) |
| C8—C9—Cl1B | 114.8 (10) | C12—N3—C13 | 120.4 (9) |
| C10—C9—Cl1B | 112.8 (9) | C11—N3—C13 | 126.7 (9) |
| C8—C9—Cl1A | 54.8 (8) | C17—N4—C15 | 114.1 (10) |
| C10—C9—Cl1A | 172.8 (7) | C17—N4—C14 | 121.8 (10) |
| Cl1B—C9—Cl1A | 61.2 (4) | C15—N4—C14 | 123.8 (8) |
| C8—C9—H9 | 114.0 | C3—O1—C1 | 107.4 (10) |
| C10—C9—H9 | 114.0 | C17—O5—C16 | 111.2 (8) |
| Cl1B—C9—H9 | 8.4 | C8—Cl1A—Cl1B | 94.4 (5) |
| Cl1A—C9—H9 | 59.3 | C8—Cl1A—C9 | 42.2 (4) |
| C11—C10—C9 | 113.4 (10) | Cl1B—Cl1A—C9 | 53.0 (4) |
| C11—C10—H10 | 123.3 | C9—Cl1B—Cl1A | 65.9 (6) |
| C9—C10—H10 | 123.3 |
| H··· | ||||
| C4—H4 | 0.97 | 2.42 | 3.247 (13) | 143 |
| C14—H14 | 0.97 | 2.48 | 3.315 (13) | 144 |
Hydrogen-bond geometry (, )
|
|
| H |
|
|
|---|---|---|---|---|
| C4H4 | 0.97 | 2.42 | 3.247(13) | 143 |
| C14H14 | 0.97 | 2.48 | 3.315(13) | 144 |
Symmetry codes: (i) ; (ii) .