
Acta Cryst. (2008). E64, o676 [ doi:10.1107/S1600536808005904 ]
The X-ray crystallographic study of the title compound, C37H41N3O6, at 150 K establishes the N-oxide form of the triazene 1-oxide unit. There is one intramolecular N-H
O hydrogen-bonding interaction and the crystal packing is stabilized by one N-H
O, three C-H
O and three C-H
intermolecular interactions. The dihedral angles between pairs of adjacent benzene rings are 14.9 (3), 56.3 (1) and 56.0 (1)°
The title compound has been synthesized from nitobenzene, p-aminobenzoic acid, hydroquinone, p-hydroxybenzoic acid and n-bromoundecane using standard coupling processes involving multiple steps. The final product was crystallized by slow diffusion of ethanol into the dichloromethane solution of the title compound to yield crystals suitable for x-ray crystallography.
The N-bound H atom was located in a difference Fourier map and its coordinates and isotropic displacement parameter were freely refined. C-bound H atoms were included at calculated positions as riding atoms with C–H set to 0.95 Å for (aromatic), 0.98 Å for (CH3) and 0.99 Å for (CH2) H atoms, with Uiso(H) = 1.2Ueq(C) (1.5Ueq for methyl group). Some low-angle reflections were excluded from the refinement, as they were probably obscured by the beam stop.
Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
| C37H41N3O6 | Z = 2 |
| Mr = 623.73 | F000 = 664 |
| Triclinic, P1 | Dx = 1.254 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation λ = 0.71073 Å |
| a = 5.674 (3) Å | Cell parameters from 5812 reflections |
| b = 12.039 (7) Å | θ = 1.7–25.5º |
| c = 24.931 (15) Å | µ = 0.09 mm−1 |
| α = 101.779 (10)º | T = 150 (2) K |
| β = 92.826 (11)º | Needle, pale yellow |
| γ = 96.565 (10)º | 0.33 × 0.09 × 0.04 mm |
| V = 1651.6 (17) Å3 |
| Bruker SMART APEX CCD area detector diffractometer | 5812 independent reflections |
| Radiation source: fine-focus sealed tube | 3464 reflections with I > 2σ(I) |
| Monochromator: graphite | Rint = 0.072 |
| T = 150(2) K | θmax = 25.5º |
| φ and ω scans | θmin = 1.7º |
| Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −6→6 |
| Tmin = 0.988, Tmax = 0.995 | k = −14→14 |
| 11715 measured reflections | l = −29→30 |
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.096 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.212 | w = 1/[σ2(Fo2) + (0.082P)2 + 0.0843P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.08 | (Δ/σ)max < 0.001 |
| 5812 reflections | Δρmax = 0.31 e Å−3 |
| 420 parameters | Δρmin = −0.31 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
| C37H41N3O6 | γ = 96.565 (10)º |
| Mr = 623.73 | V = 1651.6 (17) Å3 |
| Triclinic, P1 | Z = 2 |
| a = 5.674 (3) Å | Mo Kα |
| b = 12.039 (7) Å | µ = 0.09 mm−1 |
| c = 24.931 (15) Å | T = 150 (2) K |
| α = 101.779 (10)º | 0.33 × 0.09 × 0.04 mm |
| β = 92.826 (11)º |
| Bruker SMART APEX CCD area detector diffractometer | 5812 independent reflections |
| Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3464 reflections with I > 2σ(I) |
| Tmin = 0.988, Tmax = 0.995 | Rint = 0.072 |
| 11715 measured reflections |
| R[F2 > 2σ(F2)] = 0.096 | 420 parameters |
| wR(F2) = 0.212 | H atoms treated by a mixture of independent and constrained refinement |
| S = 1.08 | Δρmax = 0.31 e Å−3 |
| 5812 reflections | Δρmin = −0.31 e Å−3 |
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 | ||
| H3A | 0.607 (9) | 0.051 (4) | 0.963 (2) | 0.052 (16)* | |
| O1 | 0.6978 (5) | −0.0912 (2) | 0.99661 (11) | 0.0257 (7) | |
| O2 | 0.9170 (5) | 0.4217 (2) | 0.78920 (11) | 0.0230 (7) | |
| O3 | 0.5858 (5) | 0.4763 (2) | 0.82795 (11) | 0.0214 (7) | |
| O4 | 0.5943 (5) | 0.8656 (2) | 0.74197 (12) | 0.0266 (8) | |
| O5 | 0.3127 (6) | 0.9292 (2) | 0.79658 (13) | 0.0349 (9) | |
| O6 | 0.5596 (5) | 1.3488 (2) | 0.68317 (11) | 0.0246 (7) | |
| N1 | 0.8297 (6) | −0.0997 (3) | 0.95643 (14) | 0.0217 (9) | |
| N2 | 0.8428 (6) | −0.0295 (3) | 0.92334 (13) | 0.0205 (8) | |
| N3 | 0.6991 (7) | 0.0500 (3) | 0.93561 (15) | 0.0221 (9) | |
| C1 | 0.9117 (9) | −0.2881 (4) | 0.96356 (18) | 0.0310 (12) | |
| H1 | 0.7735 | −0.2954 | 0.9832 | 0.037* | |
| C2 | 1.0507 (10) | −0.3763 (4) | 0.9521 (2) | 0.0403 (14) | |
| H2 | 1.0060 | −0.4459 | 0.9634 | 0.048* | |
| C3 | 1.2551 (9) | −0.3635 (4) | 0.92428 (19) | 0.0358 (12) | |
| H3 | 1.3520 | −0.4235 | 0.9175 | 0.043* | |
| C4 | 1.3173 (8) | −0.2634 (4) | 0.90638 (17) | 0.0297 (11) | |
| H4 | 1.4547 | −0.2557 | 0.8865 | 0.036* | |
| C5 | 1.1826 (8) | −0.1756 (4) | 0.91715 (17) | 0.0257 (11) | |
| H5 | 1.2266 | −0.1063 | 0.9054 | 0.031* | |
| C6 | 0.9815 (7) | −0.1889 (3) | 0.94531 (16) | 0.0185 (10) | |
| C7 | 0.7176 (8) | 0.1385 (3) | 0.90689 (16) | 0.0227 (11) | |
| C8 | 0.8969 (8) | 0.1530 (4) | 0.87256 (18) | 0.0289 (11) | |
| H8 | 1.0138 | 0.1019 | 0.8678 | 0.035* | |
| C9 | 0.9056 (8) | 0.2408 (3) | 0.84549 (18) | 0.0266 (11) | |
| H9 | 1.0287 | 0.2494 | 0.8216 | 0.032* | |
| C10 | 0.7403 (8) | 0.3177 (3) | 0.85173 (16) | 0.0233 (10) | |
| C11 | 0.5577 (8) | 0.3021 (3) | 0.88585 (17) | 0.0241 (11) | |
| H11 | 0.4395 | 0.3525 | 0.8901 | 0.029* | |
| C12 | 0.5485 (8) | 0.2143 (4) | 0.91320 (17) | 0.0263 (11) | |
| H12 | 0.4249 | 0.2050 | 0.9369 | 0.032* | |
| C13 | 0.7644 (7) | 0.4083 (3) | 0.81940 (16) | 0.0167 (9) | |
| C14 | 0.5992 (7) | 0.5729 (3) | 0.80380 (16) | 0.0172 (9) | |
| C15 | 0.7954 (7) | 0.6542 (3) | 0.81402 (16) | 0.0176 (9) | |
| H15 | 0.9327 | 0.6432 | 0.8347 | 0.021* | |
| C16 | 0.7896 (7) | 0.7526 (3) | 0.79363 (16) | 0.0168 (10) | |
| H16 | 0.9236 | 0.8099 | 0.8000 | 0.020* | |
| C17 | 0.5872 (7) | 0.7667 (3) | 0.76399 (17) | 0.0188 (10) | |
| C18 | 0.3911 (7) | 0.6858 (3) | 0.75446 (17) | 0.0190 (10) | |
| H18 | 0.2526 | 0.6974 | 0.7344 | 0.023* | |
| C19 | 0.3974 (7) | 0.5858 (3) | 0.77461 (16) | 0.0198 (10) | |
| H19 | 0.2642 | 0.5280 | 0.7681 | 0.024* | |
| C20 | 0.4459 (8) | 0.9433 (3) | 0.76209 (17) | 0.0239 (10) | |
| C21 | 0.4854 (7) | 1.0462 (3) | 0.73795 (16) | 0.0177 (10) | |
| C22 | 0.6686 (8) | 1.0670 (3) | 0.70587 (18) | 0.0277 (11) | |
| H22 | 0.7747 | 1.0115 | 0.6968 | 0.033* | |
| C23 | 0.7018 (8) | 1.1675 (4) | 0.68634 (17) | 0.0273 (11) | |
| H23 | 0.8302 | 1.1810 | 0.6645 | 0.033* | |
| C24 | 0.5457 (8) | 1.2473 (3) | 0.69914 (17) | 0.0219 (10) | |
| C25 | 0.3546 (8) | 1.2251 (3) | 0.72996 (17) | 0.0226 (10) | |
| H25 | 0.2453 | 1.2793 | 0.7381 | 0.027* | |
| C26 | 0.3238 (8) | 1.1258 (3) | 0.74858 (17) | 0.0226 (10) | |
| H26 | 0.1911 | 1.1106 | 0.7690 | 0.027* | |
| C27 | 0.7669 (8) | 1.3862 (3) | 0.65780 (18) | 0.0249 (11) | |
| H27A | 0.7710 | 1.3379 | 0.6207 | 0.030* | |
| H27B | 0.9127 | 1.3809 | 0.6801 | 0.030* | |
| C28 | 0.7526 (8) | 1.5068 (3) | 0.65407 (18) | 0.0261 (11) | |
| H28A | 0.7516 | 1.5531 | 0.6917 | 0.031* | |
| H28B | 0.5992 | 1.5103 | 0.6342 | 0.031* | |
| C29 | 0.9515 (8) | 1.5615 (3) | 0.62570 (18) | 0.0275 (11) | |
| H29A | 0.9433 | 1.5217 | 0.5866 | 0.033* | |
| H29B | 1.1071 | 1.5531 | 0.6432 | 0.033* | |
| C30 | 0.9318 (8) | 1.6876 (3) | 0.62928 (18) | 0.0287 (11) | |
| H30A | 0.9462 | 1.7262 | 0.6686 | 0.034* | |
| H30B | 0.7706 | 1.6944 | 0.6142 | 0.034* | |
| C31 | 1.1121 (9) | 1.7520 (4) | 0.5999 (2) | 0.0328 (12) | |
| H31A | 1.2744 | 1.7488 | 0.6155 | 0.039* | |
| H31B | 1.1010 | 1.7141 | 0.5605 | 0.039* | |
| C32 | 1.0726 (8) | 1.8755 (4) | 0.60495 (18) | 0.0291 (11) | |
| H32A | 1.0965 | 1.9136 | 0.6443 | 0.035* | |
| H32B | 0.9045 | 1.8774 | 0.5929 | 0.035* | |
| C33 | 1.2298 (9) | 1.9452 (3) | 0.57279 (18) | 0.0304 (12) | |
| H33A | 1.3978 | 1.9488 | 0.5865 | 0.037* | |
| H33B | 1.2138 | 1.9056 | 0.5336 | 0.037* | |
| C34 | 1.1690 (8) | 2.0658 (4) | 0.57715 (18) | 0.0286 (11) | |
| H34A | 1.1843 | 2.1048 | 0.6164 | 0.034* | |
| H34B | 1.0006 | 2.0617 | 0.5636 | 0.034* | |
| C35 | 1.3232 (9) | 2.1382 (4) | 0.54541 (18) | 0.0331 (12) | |
| H35A | 1.4912 | 2.1447 | 0.5597 | 0.040* | |
| H35B | 1.3117 | 2.0985 | 0.5063 | 0.040* | |
| C36 | 1.2542 (9) | 2.2568 (3) | 0.5491 (2) | 0.0367 (13) | |
| H36A | 1.2691 | 2.2969 | 0.5882 | 0.044* | |
| H36B | 1.0850 | 2.2501 | 0.5356 | 0.044* | |
| C37 | 1.4037 (10) | 2.3293 (4) | 0.5165 (2) | 0.0529 (16) | |
| H37A | 1.3981 | 2.2882 | 0.4781 | 0.079* | |
| H37B | 1.5688 | 2.3439 | 0.5322 | 0.079* | |
| H37C | 1.3402 | 2.4021 | 0.5181 | 0.079* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| O1 | 0.0294 (19) | 0.0308 (18) | 0.0201 (16) | 0.0072 (15) | 0.0124 (14) | 0.0086 (14) |
| O2 | 0.0202 (18) | 0.0129 (15) | 0.0377 (18) | 0.0026 (13) | 0.0121 (14) | 0.0070 (13) |
| O3 | 0.0252 (18) | 0.0126 (15) | 0.0298 (17) | 0.0039 (13) | 0.0115 (14) | 0.0098 (13) |
| O4 | 0.0294 (19) | 0.0198 (16) | 0.0383 (18) | 0.0104 (14) | 0.0163 (15) | 0.0166 (14) |
| O5 | 0.033 (2) | 0.0234 (17) | 0.056 (2) | 0.0066 (15) | 0.0228 (17) | 0.0189 (16) |
| O6 | 0.0303 (19) | 0.0099 (15) | 0.0358 (17) | −0.0013 (13) | 0.0065 (15) | 0.0115 (13) |
| N1 | 0.023 (2) | 0.0153 (19) | 0.025 (2) | 0.0037 (16) | 0.0046 (17) | −0.0024 (16) |
| N2 | 0.027 (2) | 0.0101 (18) | 0.027 (2) | 0.0056 (16) | 0.0115 (17) | 0.0065 (16) |
| N3 | 0.025 (2) | 0.020 (2) | 0.025 (2) | 0.0096 (17) | 0.0082 (18) | 0.0086 (17) |
| C1 | 0.045 (3) | 0.022 (3) | 0.029 (3) | 0.010 (2) | 0.007 (2) | 0.008 (2) |
| C2 | 0.061 (4) | 0.027 (3) | 0.049 (3) | 0.029 (3) | 0.018 (3) | 0.028 (2) |
| C3 | 0.035 (3) | 0.032 (3) | 0.043 (3) | 0.021 (2) | 0.000 (2) | 0.006 (2) |
| C4 | 0.029 (3) | 0.028 (3) | 0.028 (3) | 0.003 (2) | 0.002 (2) | −0.003 (2) |
| C5 | 0.021 (3) | 0.022 (2) | 0.029 (2) | 0.003 (2) | 0.001 (2) | −0.007 (2) |
| C6 | 0.015 (2) | 0.015 (2) | 0.024 (2) | −0.0011 (18) | 0.0017 (19) | 0.0015 (18) |
| C7 | 0.030 (3) | 0.016 (2) | 0.019 (2) | −0.004 (2) | 0.004 (2) | −0.0008 (19) |
| C8 | 0.026 (3) | 0.023 (2) | 0.045 (3) | 0.011 (2) | 0.009 (2) | 0.018 (2) |
| C9 | 0.024 (3) | 0.025 (3) | 0.035 (3) | 0.004 (2) | 0.013 (2) | 0.012 (2) |
| C10 | 0.027 (3) | 0.017 (2) | 0.023 (2) | −0.005 (2) | 0.000 (2) | 0.0015 (19) |
| C11 | 0.021 (3) | 0.022 (2) | 0.035 (3) | 0.009 (2) | 0.014 (2) | 0.013 (2) |
| C12 | 0.029 (3) | 0.030 (3) | 0.024 (2) | 0.008 (2) | 0.012 (2) | 0.012 (2) |
| C13 | 0.015 (2) | 0.011 (2) | 0.022 (2) | 0.0009 (18) | 0.0038 (19) | −0.0020 (18) |
| C14 | 0.018 (2) | 0.010 (2) | 0.024 (2) | −0.0005 (18) | 0.0022 (19) | 0.0087 (18) |
| C15 | 0.014 (2) | 0.015 (2) | 0.024 (2) | 0.0005 (18) | −0.0001 (18) | 0.0059 (18) |
| C16 | 0.006 (2) | 0.011 (2) | 0.030 (2) | −0.0058 (17) | 0.0013 (18) | 0.0000 (18) |
| C17 | 0.014 (2) | 0.016 (2) | 0.027 (2) | 0.0025 (18) | 0.0104 (19) | 0.0034 (19) |
| C18 | 0.010 (2) | 0.015 (2) | 0.033 (2) | 0.0012 (18) | 0.0071 (19) | 0.0068 (19) |
| C19 | 0.014 (2) | 0.008 (2) | 0.034 (2) | −0.0077 (17) | 0.004 (2) | −0.0001 (19) |
| C20 | 0.022 (3) | 0.021 (2) | 0.028 (2) | 0.001 (2) | 0.003 (2) | 0.006 (2) |
| C21 | 0.016 (2) | 0.0035 (19) | 0.032 (2) | −0.0044 (17) | −0.0011 (19) | 0.0044 (18) |
| C22 | 0.031 (3) | 0.014 (2) | 0.041 (3) | 0.002 (2) | 0.010 (2) | 0.011 (2) |
| C23 | 0.025 (3) | 0.028 (3) | 0.029 (3) | 0.003 (2) | 0.008 (2) | 0.004 (2) |
| C24 | 0.025 (3) | 0.016 (2) | 0.026 (2) | 0.000 (2) | 0.008 (2) | 0.0074 (19) |
| C25 | 0.021 (3) | 0.010 (2) | 0.035 (3) | 0.0000 (19) | 0.002 (2) | 0.0002 (19) |
| C26 | 0.017 (2) | 0.020 (2) | 0.030 (2) | −0.0018 (19) | 0.009 (2) | 0.005 (2) |
| C27 | 0.032 (3) | 0.015 (2) | 0.029 (2) | 0.000 (2) | 0.012 (2) | 0.0089 (19) |
| C28 | 0.027 (3) | 0.022 (2) | 0.031 (3) | 0.007 (2) | 0.010 (2) | 0.006 (2) |
| C29 | 0.032 (3) | 0.026 (3) | 0.025 (2) | 0.001 (2) | 0.004 (2) | 0.007 (2) |
| C30 | 0.029 (3) | 0.022 (3) | 0.037 (3) | 0.002 (2) | 0.005 (2) | 0.012 (2) |
| C31 | 0.034 (3) | 0.027 (3) | 0.041 (3) | 0.005 (2) | 0.007 (2) | 0.012 (2) |
| C32 | 0.029 (3) | 0.032 (3) | 0.028 (2) | 0.003 (2) | 0.010 (2) | 0.011 (2) |
| C33 | 0.037 (3) | 0.020 (2) | 0.033 (3) | −0.006 (2) | 0.008 (2) | 0.005 (2) |
| C34 | 0.018 (3) | 0.030 (3) | 0.036 (3) | −0.010 (2) | −0.003 (2) | 0.010 (2) |
| C35 | 0.041 (3) | 0.030 (3) | 0.029 (3) | −0.002 (2) | 0.005 (2) | 0.011 (2) |
| C36 | 0.046 (3) | 0.015 (2) | 0.046 (3) | −0.013 (2) | −0.004 (3) | 0.009 (2) |
| C37 | 0.073 (4) | 0.031 (3) | 0.055 (4) | −0.013 (3) | −0.011 (3) | 0.024 (3) |
| O1—N1 | 1.274 (4) | C19—H19 | 0.9500 |
| O2—C13 | 1.193 (4) | C20—C21 | 1.484 (6) |
| O3—C13 | 1.372 (5) | C21—C22 | 1.373 (5) |
| O3—C14 | 1.410 (4) | C21—C26 | 1.397 (6) |
| O4—C20 | 1.366 (5) | C22—C23 | 1.391 (6) |
| O4—C17 | 1.407 (5) | C22—H22 | 0.9500 |
| O5—C20 | 1.197 (5) | C23—C24 | 1.381 (6) |
| O6—C24 | 1.356 (5) | C23—H23 | 0.9500 |
| O6—C27 | 1.433 (5) | C24—C25 | 1.392 (5) |
| N1—N2 | 1.295 (4) | C25—C26 | 1.365 (6) |
| N1—C6 | 1.444 (5) | C25—H25 | 0.9500 |
| N2—N3 | 1.326 (5) | C26—H26 | 0.9500 |
| N3—C7 | 1.397 (5) | C27—C28 | 1.485 (6) |
| N3—H3A | 0.89 (5) | C27—H27A | 0.9900 |
| C1—C2 | 1.385 (6) | C27—H27B | 0.9900 |
| C1—C6 | 1.386 (6) | C28—C29 | 1.518 (6) |
| C1—H1 | 0.9500 | C28—H28A | 0.9900 |
| C2—C3 | 1.390 (6) | C28—H28B | 0.9900 |
| C2—H2 | 0.9500 | C29—C30 | 1.520 (6) |
| C3—C4 | 1.384 (6) | C29—H29A | 0.9900 |
| C3—H3 | 0.9500 | C29—H29B | 0.9900 |
| C4—C5 | 1.365 (6) | C30—C31 | 1.520 (6) |
| C4—H4 | 0.9500 | C30—H30A | 0.9900 |
| C5—C6 | 1.379 (5) | C30—H30B | 0.9900 |
| C5—H5 | 0.9500 | C31—C32 | 1.509 (6) |
| C7—C8 | 1.380 (6) | C31—H31A | 0.9900 |
| C7—C12 | 1.391 (6) | C31—H31B | 0.9900 |
| C8—C9 | 1.363 (6) | C32—C33 | 1.522 (5) |
| C8—H8 | 0.9500 | C32—H32A | 0.9900 |
| C9—C10 | 1.384 (6) | C32—H32B | 0.9900 |
| C9—H9 | 0.9500 | C33—C34 | 1.514 (6) |
| C10—C11 | 1.393 (5) | C33—H33A | 0.9900 |
| C10—C13 | 1.482 (6) | C33—H33B | 0.9900 |
| C11—C12 | 1.368 (6) | C34—C35 | 1.525 (6) |
| C11—H11 | 0.9500 | C34—H34A | 0.9900 |
| C12—H12 | 0.9500 | C34—H34B | 0.9900 |
| C14—C19 | 1.367 (6) | C35—C36 | 1.510 (6) |
| C14—C15 | 1.373 (6) | C35—H35A | 0.9900 |
| C15—C16 | 1.384 (5) | C35—H35B | 0.9900 |
| C15—H15 | 0.9500 | C36—C37 | 1.527 (6) |
| C16—C17 | 1.381 (6) | C36—H36A | 0.9900 |
| C16—H16 | 0.9500 | C36—H36B | 0.9900 |
| C17—C18 | 1.369 (6) | C37—H37A | 0.9800 |
| C18—C19 | 1.399 (5) | C37—H37B | 0.9800 |
| C18—H18 | 0.9500 | C37—H37C | 0.9800 |
| C13—O3—C14 | 117.5 (3) | C24—C23—H23 | 120.4 |
| C20—O4—C17 | 117.0 (3) | C22—C23—H23 | 120.4 |
| C24—O6—C27 | 119.1 (3) | O6—C24—C23 | 125.0 (4) |
| O1—N1—N2 | 123.7 (3) | O6—C24—C25 | 115.1 (4) |
| O1—N1—C6 | 121.5 (3) | C23—C24—C25 | 119.9 (4) |
| N2—N1—C6 | 114.9 (3) | C26—C25—C24 | 120.2 (4) |
| N1—N2—N3 | 111.9 (3) | C26—C25—H25 | 119.9 |
| N2—N3—C7 | 117.2 (4) | C24—C25—H25 | 119.9 |
| N2—N3—H3A | 121 (3) | C25—C26—C21 | 120.6 (4) |
| C7—N3—H3A | 122 (3) | C25—C26—H26 | 119.7 |
| C2—C1—C6 | 117.6 (4) | C21—C26—H26 | 119.7 |
| C2—C1—H1 | 121.2 | O6—C27—C28 | 107.1 (3) |
| C6—C1—H1 | 121.2 | O6—C27—H27A | 110.3 |
| C1—C2—C3 | 120.5 (4) | C28—C27—H27A | 110.3 |
| C1—C2—H2 | 119.7 | O6—C27—H27B | 110.3 |
| C3—C2—H2 | 119.7 | C28—C27—H27B | 110.3 |
| C4—C3—C2 | 119.9 (4) | H27A—C27—H27B | 108.6 |
| C4—C3—H3 | 120.0 | C27—C28—C29 | 115.6 (4) |
| C2—C3—H3 | 120.0 | C27—C28—H28A | 108.4 |
| C5—C4—C3 | 120.4 (4) | C29—C28—H28A | 108.4 |
| C5—C4—H4 | 119.8 | C27—C28—H28B | 108.4 |
| C3—C4—H4 | 119.8 | C29—C28—H28B | 108.4 |
| C4—C5—C6 | 119.0 (4) | H28A—C28—H28B | 107.4 |
| C4—C5—H5 | 120.5 | C28—C29—C30 | 110.8 (4) |
| C6—C5—H5 | 120.5 | C28—C29—H29A | 109.5 |
| C5—C6—C1 | 122.4 (4) | C30—C29—H29A | 109.5 |
| C5—C6—N1 | 121.1 (4) | C28—C29—H29B | 109.5 |
| C1—C6—N1 | 116.5 (4) | C30—C29—H29B | 109.5 |
| C8—C7—C12 | 119.1 (4) | H29A—C29—H29B | 108.1 |
| C8—C7—N3 | 122.3 (4) | C29—C30—C31 | 116.6 (4) |
| C12—C7—N3 | 118.6 (4) | C29—C30—H30A | 108.1 |
| C9—C8—C7 | 119.7 (4) | C31—C30—H30A | 108.1 |
| C9—C8—H8 | 120.1 | C29—C30—H30B | 108.1 |
| C7—C8—H8 | 120.1 | C31—C30—H30B | 108.1 |
| C8—C9—C10 | 122.0 (4) | H30A—C30—H30B | 107.3 |
| C8—C9—H9 | 119.0 | C32—C31—C30 | 112.1 (4) |
| C10—C9—H9 | 119.0 | C32—C31—H31A | 109.2 |
| C9—C10—C11 | 118.3 (4) | C30—C31—H31A | 109.2 |
| C9—C10—C13 | 117.2 (4) | C32—C31—H31B | 109.2 |
| C11—C10—C13 | 124.4 (4) | C30—C31—H31B | 109.2 |
| C12—C11—C10 | 120.0 (4) | H31A—C31—H31B | 107.9 |
| C12—C11—H11 | 120.0 | C31—C32—C33 | 116.4 (4) |
| C10—C11—H11 | 120.0 | C31—C32—H32A | 108.2 |
| C11—C12—C7 | 121.0 (4) | C33—C32—H32A | 108.2 |
| C11—C12—H12 | 119.5 | C31—C32—H32B | 108.2 |
| C7—C12—H12 | 119.5 | C33—C32—H32B | 108.2 |
| O2—C13—O3 | 123.2 (4) | H32A—C32—H32B | 107.3 |
| O2—C13—C10 | 125.4 (4) | C34—C33—C32 | 113.2 (4) |
| O3—C13—C10 | 111.4 (3) | C34—C33—H33A | 108.9 |
| C19—C14—C15 | 122.5 (4) | C32—C33—H33A | 108.9 |
| C19—C14—O3 | 115.9 (3) | C34—C33—H33B | 108.9 |
| C15—C14—O3 | 121.3 (4) | C32—C33—H33B | 108.9 |
| C14—C15—C16 | 118.8 (4) | H33A—C33—H33B | 107.7 |
| C14—C15—H15 | 120.6 | C33—C34—C35 | 114.7 (4) |
| C16—C15—H15 | 120.6 | C33—C34—H34A | 108.6 |
| C17—C16—C15 | 119.4 (4) | C35—C34—H34A | 108.6 |
| C17—C16—H16 | 120.3 | C33—C34—H34B | 108.6 |
| C15—C16—H16 | 120.3 | C35—C34—H34B | 108.6 |
| C18—C17—C16 | 121.6 (4) | H34A—C34—H34B | 107.6 |
| C18—C17—O4 | 121.3 (4) | C36—C35—C34 | 113.5 (4) |
| C16—C17—O4 | 117.1 (4) | C36—C35—H35A | 108.9 |
| C17—C18—C19 | 119.2 (4) | C34—C35—H35A | 108.9 |
| C17—C18—H18 | 120.4 | C36—C35—H35B | 108.9 |
| C19—C18—H18 | 120.4 | C34—C35—H35B | 108.9 |
| C14—C19—C18 | 118.6 (4) | H35A—C35—H35B | 107.7 |
| C14—C19—H19 | 120.7 | C35—C36—C37 | 114.0 (4) |
| C18—C19—H19 | 120.7 | C35—C36—H36A | 108.7 |
| O5—C20—O4 | 122.6 (4) | C37—C36—H36A | 108.7 |
| O5—C20—C21 | 126.5 (4) | C35—C36—H36B | 108.7 |
| O4—C20—C21 | 110.8 (3) | C37—C36—H36B | 108.7 |
| C22—C21—C26 | 118.6 (4) | H36A—C36—H36B | 107.6 |
| C22—C21—C20 | 124.1 (4) | C36—C37—H37A | 109.5 |
| C26—C21—C20 | 117.2 (4) | C36—C37—H37B | 109.5 |
| C21—C22—C23 | 121.3 (4) | H37A—C37—H37B | 109.5 |
| C21—C22—H22 | 119.3 | C36—C37—H37C | 109.5 |
| C23—C22—H22 | 119.3 | H37A—C37—H37C | 109.5 |
| C24—C23—C22 | 119.1 (4) | H37B—C37—H37C | 109.5 |
| O1—N1—N2—N3 | −1.5 (5) | C15—C16—C17—C18 | 0.3 (6) |
| C6—N1—N2—N3 | 179.8 (3) | C15—C16—C17—O4 | −177.1 (3) |
| N1—N2—N3—C7 | 172.8 (3) | C20—O4—C17—C18 | 67.9 (5) |
| C6—C1—C2—C3 | 1.2 (7) | C20—O4—C17—C16 | −114.7 (4) |
| C1—C2—C3—C4 | −1.8 (8) | C16—C17—C18—C19 | −0.9 (6) |
| C2—C3—C4—C5 | 1.7 (7) | O4—C17—C18—C19 | 176.4 (3) |
| C3—C4—C5—C6 | −1.1 (7) | C15—C14—C19—C18 | 0.0 (6) |
| C4—C5—C6—C1 | 0.5 (7) | O3—C14—C19—C18 | 173.5 (3) |
| C4—C5—C6—N1 | −178.3 (4) | C17—C18—C19—C14 | 0.7 (6) |
| C2—C1—C6—C5 | −0.6 (7) | C17—O4—C20—O5 | −0.6 (6) |
| C2—C1—C6—N1 | 178.3 (4) | C17—O4—C20—C21 | 176.0 (3) |
| O1—N1—C6—C5 | −155.3 (4) | O5—C20—C21—C22 | 168.0 (5) |
| N2—N1—C6—C5 | 23.4 (6) | O4—C20—C21—C22 | −8.5 (6) |
| O1—N1—C6—C1 | 25.8 (6) | O5—C20—C21—C26 | −12.5 (7) |
| N2—N1—C6—C1 | −155.5 (4) | O4—C20—C21—C26 | 171.1 (4) |
| N2—N3—C7—C8 | −8.6 (6) | C26—C21—C22—C23 | 3.2 (6) |
| N2—N3—C7—C12 | 171.3 (4) | C20—C21—C22—C23 | −177.3 (4) |
| C12—C7—C8—C9 | 0.0 (7) | C21—C22—C23—C24 | −0.6 (7) |
| N3—C7—C8—C9 | 179.9 (4) | C27—O6—C24—C23 | −9.4 (6) |
| C7—C8—C9—C10 | 0.7 (7) | C27—O6—C24—C25 | 171.6 (4) |
| C8—C9—C10—C11 | −1.5 (7) | C22—C23—C24—O6 | 179.3 (4) |
| C8—C9—C10—C13 | −178.8 (4) | C22—C23—C24—C25 | −1.7 (7) |
| C9—C10—C11—C12 | 1.6 (6) | O6—C24—C25—C26 | −179.6 (4) |
| C13—C10—C11—C12 | 178.7 (4) | C23—C24—C25—C26 | 1.4 (6) |
| C10—C11—C12—C7 | −1.0 (7) | C24—C25—C26—C21 | 1.2 (6) |
| C8—C7—C12—C11 | 0.2 (7) | C22—C21—C26—C25 | −3.5 (6) |
| N3—C7—C12—C11 | −179.7 (4) | C20—C21—C26—C25 | 176.9 (4) |
| C14—O3—C13—O2 | −6.4 (5) | C24—O6—C27—C28 | −170.1 (4) |
| C14—O3—C13—C10 | 174.1 (3) | O6—C27—C28—C29 | −177.2 (4) |
| C9—C10—C13—O2 | −1.4 (6) | C27—C28—C29—C30 | −174.4 (4) |
| C11—C10—C13—O2 | −178.5 (4) | C28—C29—C30—C31 | −176.8 (4) |
| C9—C10—C13—O3 | 178.0 (4) | C29—C30—C31—C32 | 178.6 (4) |
| C11—C10—C13—O3 | 0.9 (6) | C30—C31—C32—C33 | −174.8 (4) |
| C13—O3—C14—C19 | 130.4 (4) | C31—C32—C33—C34 | 176.4 (4) |
| C13—O3—C14—C15 | −56.0 (5) | C32—C33—C34—C35 | 180.0 (4) |
| C19—C14—C15—C16 | −0.6 (6) | C33—C34—C35—C36 | 178.3 (4) |
| O3—C14—C15—C16 | −173.7 (3) | C34—C35—C36—C37 | −178.7 (4) |
| C14—C15—C16—C17 | 0.4 (6) |
| D—H···A | D—H | H···A | D···A | D—H···A |
| N3—H3A···O1 | 0.88 (5) | 2.16 (5) | 2.501 (5) | 103 (4) |
| N3—H3A···O1i | 0.88 (5) | 2.10 (5) | 2.909 (5) | 153 (5) |
| C12—H12···O1i | 0.95 | 2.44 | 3.225 (6) | 140 |
| C16—H16···O5ii | 0.95 | 2.51 | 3.436 (5) | 166 |
| C19—H19···O2iii | 0.95 | 2.37 | 3.260 (5) | 157 |
| C4—H4···Cg3iv | 0.95 | 2.71 | 3.486 (5) | 139 |
| C15—H15···Cg1v | 0.95 | 2.60 | 3.342 (5) | 135 |
| C28—H28A···Cg3v | 0.99 | 2.69 | 3.642 (5) | 161 |
| Symmetry codes: (i) −x+1, −y, −z+2; (ii) x+1, y, z; (iii) x−1, y, z; (iv) x−1, y+1, z; (v) x, y−1, z. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| N3—H3A···O1 | 0.88 (5) | 2.16 (5) | 2.501 (5) | 103 (4) |
| N3—H3A···O1i | 0.88 (5) | 2.10 (5) | 2.909 (5) | 153 (5) |
| C12—H12···O1i | 0.95 | 2.44 | 3.225 (6) | 140 |
| C16—H16···O5ii | 0.95 | 2.51 | 3.436 (5) | 166 |
| C19—H19···O2iii | 0.95 | 2.37 | 3.260 (5) | 157 |
| C4—H4···Cg3iv | 0.95 | 2.71 | 3.486 (5) | 139 |
| C15—H15···Cg1v | 0.95 | 2.60 | 3.342 (5) | 135 |
| C28—H28A···Cg3v | 0.99 | 2.69 | 3.642 (5) | 161 |
| Symmetry codes: (i) −x+1, −y, −z+2; (ii) x+1, y, z; (iii) x−1, y, z; (iv) x−1, y+1, z; (v) x, y−1, z. |
Financial support (SR/S1/IC-08/2007) from the DST, Government of India, is gratefully acknowledged. We thank the CSIR (India) for the award of a fellowship (PD) and the UGC (New Delhi) for the Special Assistance Programme to our Department. We also thank Professor A. Ramanan, IIT Delhi, for the X-ray crystallographic data collection.
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Triazene-1-oxides are well known for their chelating ability (Ciunik et al., 2002 & Hörner et al., 2002), antitumour activity (Wilman, 1988) and also for initiating radical polymerization (Rapta et al., 1996). In this communication the molecular structure of a triazene-1-oxide derivative has been reported. The molecular structure of the title compound, (I), has been shown in Figure 1, with the atom-numbering scheme. The planar phenyl moiety and trigonal planar geometry of the triazene N3 atom strongly suggest a resonance interaction extending over the C6, N1, N2 and N3 atoms. The N1—N2 and N2—N3 distances are in good agreement with the reported values of other triazene-1-oxides (Samanta et al., 1997; Vaughan et al., 1992). The shorter length of N1—N2 indicates its double-bond character and the longer N2—N3 distance is still shorter than a pure single-bond. The deviation of O1 from the molecular plane causes conjugation between N1—C6 to be less effective and is reflected in the longer N1—C6 than N3—C7 distance. There is an intramolecular N–H···O interaction within the triazene-1-oxide moiety (Figure 1, Table 1). The intramolecular hydrogen bondings result almost planar conformation of the triazene fragment of the molecule. The molecular packing of (I) has been shown in Figure 2. The intermolecular hydrogen bonding causes dimer formation of (I) (Figure 3). The crystal packing is stabilized by intermolecular one N–H···O (Figure 3, Table 1), three C–H···O (Figure 3, Figure 4, Table 1)and three C–H···π (Figure 5, Table 1) interactions (Das et al., 2005). The intermolecular hydrogen bonding and intermolecular C—H··· π interactions makes the phenyltriazene-1-oxide fragments of (I) in layer arrangement (Figure 2) in the molecular assembly.