Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807042900/sj2347sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807042900/sj2347Isup2.hkl |
CCDC reference: 635804
The title compound was prepared by the method of Han et al. (2007). Single crystals suitable for X-ray diffraction were obtained by slow evaporation of an ethyl acetate solution at room temperature over a period of one week.
All H-atoms were positioned geometrically and refined using a riding model with d(C—H) = 0.93 Å, Uiso=1.2Ueq (C) for aromatic 0.98 Å, Uiso = 1.2Ueq (C) for CH, and 0.97 Å, Uiso = 1.2Ueq (C) for CH2 atoms.
Recently we have reported the structure of 2-(1H-benzotriazol-1-yl)-1-(4-chlorobenzoyl)ethyl isonicotinate (II) (Han et al., 2007). As part of our ongoing studies of triazole derivatives, the title compound, (I), was synthesized and its structure is presented here.
All bond lengths and angles are within normal ranges (Allen et al., 1987) and are comparable with those in the related compound, (II). The benzotriazole system is essentially planar, with a dihedral angle of 0.32 (2)/% between the triazole ring A (N1—N3/C10/C11) and benzene ring B (C10—C15). The mean plane of the benzotriazole group makes dihedral angles of 62.83 (1) and 51.71 (1)/% with the pyridine ring C (N4/C17—C21) and benzene ring D (C1—C6), respectively. The dihedral angle between the latter two aromatic C and D rings is 65.51 (2)/%.
In the crystal structure, molecules are linked into chains along the b axis by intermolecular C9—H9A···O1 and C15—H15B···O1 hydrogen bonds. C12—H12A···N4 interactions connect the chains into three-dimensional network (Fig. 2). The packing is further stabilized by a C—H···Cg1 (Table 1) interaction, Cg1 is the centroid of the C10···C15 ring. The distance of 3.689 /%A between the centroids of the triazole and pyridine rings with the symmetry code (1/2 - x, -1/2 + y, z) suggests a possible π-π interaction
For a related structure, see: Han et al. (2007). For reference structural data, see: Allen et al. (1987).
Data collection: SMART (Siemens, 1996); cell refinement: SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL (Sheldrick, 1997b) and PLATON (Spek, 2003).
C21H15FN4O3 | F(000) = 1616 |
Mr = 390.37 | Dx = 1.382 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 1484 reflections |
a = 18.475 (2) Å | θ = 2.3–18.3° |
b = 10.3014 (13) Å | µ = 0.10 mm−1 |
c = 19.723 (3) Å | T = 293 K |
V = 3753.7 (8) Å3 | Needle, colourless |
Z = 8 | 0.40 × 0.05 × 0.03 mm |
Siemens SMART 1000 CCD area-detector diffractometer | 3706 independent reflections |
Radiation source: fine-focus sealed tube | 1930 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.073 |
Detector resolution: 8.33 pixels mm-1 | θmax = 26.0°, θmin = 2.1° |
ω scans | h = −22→22 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | k = −12→11 |
Tmin = 0.960, Tmax = 0.997 | l = −24→19 |
19822 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)] = 0.057 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 0.94 | w = 1/[σ2(Fo2) + (0.0656P)2 + 0.9453P] where P = (Fo2 + 2Fc2)/3 |
3706 reflections | (Δ/σ)max < 0.001 |
262 parameters | Δρmax = 0.14 e Å−3 |
0 restraints | Δρmin = −0.14 e Å−3 |
C21H15FN4O3 | V = 3753.7 (8) Å3 |
Mr = 390.37 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 18.475 (2) Å | µ = 0.10 mm−1 |
b = 10.3014 (13) Å | T = 293 K |
c = 19.723 (3) Å | 0.40 × 0.05 × 0.03 mm |
Siemens SMART 1000 CCD area-detector diffractometer | 3706 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1930 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.997 | Rint = 0.073 |
19822 measured reflections |
R[F2 > 2σ(F2)] = 0.057 | 0 restraints |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 0.94 | Δρmax = 0.14 e Å−3 |
3706 reflections | Δρmin = −0.14 e Å−3 |
262 parameters |
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 | ||
O2 | 0.16082 (10) | 0.45024 (19) | 0.08610 (9) | 0.0548 (5) | |
N1 | 0.30549 (13) | 0.3692 (2) | 0.11244 (11) | 0.0514 (6) | |
C6 | 0.17406 (14) | 0.3606 (3) | 0.27131 (13) | 0.0457 (7) | |
C8 | 0.17486 (15) | 0.3570 (3) | 0.13831 (12) | 0.0496 (7) | |
H8A | 0.1344 | 0.2959 | 0.1415 | 0.060* | |
O1 | 0.20182 (14) | 0.5415 (2) | 0.20452 (10) | 0.0775 (7) | |
F1 | 0.14705 (13) | 0.1940 (2) | 0.45729 (9) | 0.1040 (8) | |
N2 | 0.31636 (15) | 0.4500 (3) | 0.05856 (12) | 0.0663 (7) | |
C7 | 0.18444 (16) | 0.4281 (3) | 0.20601 (13) | 0.0509 (7) | |
C5 | 0.17641 (17) | 0.4344 (3) | 0.32980 (14) | 0.0621 (8) | |
H5A | 0.1847 | 0.5232 | 0.3265 | 0.074* | |
N3 | 0.37415 (16) | 0.5183 (3) | 0.06951 (14) | 0.0735 (8) | |
C1 | 0.16128 (17) | 0.2295 (3) | 0.27654 (14) | 0.0631 (9) | |
H1A | 0.1582 | 0.1790 | 0.2376 | 0.076* | |
C9 | 0.24246 (16) | 0.2864 (3) | 0.11506 (13) | 0.0533 (8) | |
H9A | 0.2520 | 0.2148 | 0.1457 | 0.064* | |
H9B | 0.2339 | 0.2503 | 0.0703 | 0.064* | |
C16 | 0.09670 (18) | 0.5097 (3) | 0.08663 (15) | 0.0611 (8) | |
C4 | 0.16677 (17) | 0.3796 (4) | 0.39278 (15) | 0.0691 (9) | |
H4A | 0.1680 | 0.4298 | 0.4319 | 0.083* | |
O3 | 0.05007 (13) | 0.4850 (3) | 0.12680 (13) | 0.0993 (9) | |
N4 | 0.0783 (2) | 0.7918 (3) | −0.07079 (17) | 0.0912 (10) | |
C10 | 0.35878 (15) | 0.3866 (3) | 0.15918 (14) | 0.0507 (7) | |
C11 | 0.40250 (17) | 0.4819 (3) | 0.13141 (15) | 0.0596 (8) | |
C17 | 0.09210 (16) | 0.6081 (3) | 0.03198 (14) | 0.0571 (8) | |
C3 | 0.15539 (17) | 0.2500 (4) | 0.39558 (14) | 0.0667 (9) | |
C18 | 0.14422 (17) | 0.6214 (3) | −0.01731 (14) | 0.0611 (8) | |
H18A | 0.1853 | 0.5694 | −0.0170 | 0.073* | |
C14 | 0.43413 (19) | 0.3756 (4) | 0.25411 (17) | 0.0789 (11) | |
H14A | 0.4464 | 0.3406 | 0.2960 | 0.095* | |
C2 | 0.1529 (2) | 0.1726 (3) | 0.33972 (16) | 0.0749 (10) | |
H2B | 0.1458 | 0.0836 | 0.3438 | 0.090* | |
C15 | 0.37350 (18) | 0.3308 (3) | 0.22210 (15) | 0.0639 (9) | |
H15B | 0.3440 | 0.2673 | 0.2410 | 0.077* | |
C19 | 0.1344 (2) | 0.7133 (3) | −0.06715 (17) | 0.0773 (10) | |
H19A | 0.1698 | 0.7205 | −0.1005 | 0.093* | |
C12 | 0.46429 (18) | 0.5250 (4) | 0.16520 (17) | 0.0784 (10) | |
H12A | 0.4945 | 0.5877 | 0.1465 | 0.094* | |
C13 | 0.47831 (18) | 0.4714 (4) | 0.22652 (18) | 0.0844 (11) | |
H13A | 0.5185 | 0.4994 | 0.2508 | 0.101* | |
C21 | 0.0339 (2) | 0.6903 (4) | 0.02977 (19) | 0.0869 (12) | |
H21A | −0.0021 | 0.6859 | 0.0627 | 0.104* | |
C20 | 0.0296 (2) | 0.7797 (4) | −0.0222 (2) | 0.0998 (14) | |
H20A | −0.0102 | 0.8350 | −0.0230 | 0.120* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O2 | 0.0634 (13) | 0.0589 (13) | 0.0421 (11) | 0.0086 (10) | 0.0004 (9) | 0.0122 (9) |
N1 | 0.0660 (16) | 0.0480 (15) | 0.0402 (14) | 0.0042 (12) | −0.0008 (12) | 0.0070 (11) |
C6 | 0.0536 (17) | 0.0422 (18) | 0.0414 (16) | 0.0001 (13) | −0.0018 (12) | 0.0060 (13) |
C8 | 0.0675 (19) | 0.0447 (17) | 0.0368 (16) | −0.0024 (14) | −0.0034 (13) | 0.0077 (13) |
O1 | 0.137 (2) | 0.0401 (13) | 0.0549 (13) | −0.0157 (14) | 0.0077 (13) | 0.0036 (10) |
F1 | 0.1483 (19) | 0.1130 (18) | 0.0508 (12) | −0.0085 (15) | 0.0038 (12) | 0.0284 (11) |
N2 | 0.0780 (18) | 0.075 (2) | 0.0454 (15) | 0.0038 (16) | 0.0014 (13) | 0.0197 (14) |
C7 | 0.0677 (19) | 0.0369 (18) | 0.0483 (18) | 0.0003 (15) | 0.0013 (14) | 0.0045 (13) |
C5 | 0.091 (2) | 0.0508 (19) | 0.0440 (18) | −0.0044 (17) | −0.0018 (16) | −0.0043 (15) |
N3 | 0.0739 (18) | 0.083 (2) | 0.0630 (18) | −0.0079 (17) | 0.0051 (15) | 0.0218 (15) |
C1 | 0.098 (2) | 0.050 (2) | 0.0415 (17) | −0.0105 (17) | 0.0004 (16) | 0.0020 (14) |
C9 | 0.073 (2) | 0.0443 (18) | 0.0424 (16) | 0.0017 (15) | −0.0057 (14) | −0.0009 (13) |
C16 | 0.062 (2) | 0.071 (2) | 0.0502 (19) | 0.0072 (18) | −0.0022 (16) | 0.0056 (16) |
C4 | 0.090 (2) | 0.073 (3) | 0.0442 (19) | 0.001 (2) | −0.0027 (16) | −0.0060 (17) |
O3 | 0.0814 (16) | 0.130 (2) | 0.0862 (18) | 0.0203 (16) | 0.0256 (15) | 0.0442 (16) |
N4 | 0.110 (3) | 0.086 (2) | 0.077 (2) | 0.019 (2) | −0.015 (2) | 0.0247 (18) |
C10 | 0.0622 (18) | 0.0475 (18) | 0.0425 (16) | 0.0096 (15) | 0.0003 (14) | 0.0016 (13) |
C11 | 0.0651 (19) | 0.069 (2) | 0.0453 (18) | −0.0006 (17) | 0.0068 (16) | 0.0102 (16) |
C17 | 0.0650 (19) | 0.061 (2) | 0.0454 (17) | 0.0086 (17) | −0.0085 (15) | 0.0043 (15) |
C3 | 0.082 (2) | 0.083 (3) | 0.0350 (18) | −0.001 (2) | 0.0016 (15) | 0.0171 (18) |
C18 | 0.068 (2) | 0.063 (2) | 0.0514 (19) | 0.0053 (17) | −0.0052 (16) | 0.0065 (16) |
C14 | 0.075 (2) | 0.106 (3) | 0.056 (2) | −0.002 (2) | −0.0099 (18) | 0.017 (2) |
C2 | 0.118 (3) | 0.052 (2) | 0.054 (2) | −0.013 (2) | 0.0018 (19) | 0.0131 (17) |
C15 | 0.072 (2) | 0.069 (2) | 0.0512 (19) | −0.0052 (18) | −0.0030 (16) | 0.0142 (16) |
C19 | 0.097 (3) | 0.075 (3) | 0.060 (2) | 0.005 (2) | −0.0071 (19) | 0.0194 (19) |
C12 | 0.068 (2) | 0.101 (3) | 0.066 (2) | −0.018 (2) | 0.0084 (18) | 0.013 (2) |
C13 | 0.065 (2) | 0.120 (3) | 0.068 (2) | −0.018 (2) | −0.0033 (18) | 0.006 (2) |
C21 | 0.081 (3) | 0.103 (3) | 0.077 (3) | 0.031 (2) | −0.0013 (19) | 0.020 (2) |
C20 | 0.101 (3) | 0.104 (3) | 0.095 (3) | 0.047 (3) | −0.016 (3) | 0.021 (3) |
O2—C16 | 1.334 (3) | C4—H4A | 0.9300 |
O2—C8 | 1.431 (3) | N4—C19 | 1.316 (4) |
N1—C10 | 1.361 (3) | N4—C20 | 1.321 (5) |
N1—N2 | 1.365 (3) | C10—C11 | 1.385 (4) |
N1—C9 | 1.444 (4) | C10—C15 | 1.394 (4) |
C6—C1 | 1.374 (4) | C11—C12 | 1.394 (4) |
C6—C5 | 1.382 (4) | C17—C21 | 1.370 (4) |
C6—C7 | 1.476 (4) | C17—C18 | 1.375 (4) |
C8—C9 | 1.517 (4) | C3—C2 | 1.361 (4) |
C8—C7 | 1.533 (4) | C18—C19 | 1.377 (4) |
C8—H8A | 0.9800 | C18—H18A | 0.9300 |
O1—C7 | 1.212 (3) | C14—C15 | 1.366 (4) |
F1—C3 | 1.356 (3) | C14—C13 | 1.392 (5) |
N2—N3 | 1.297 (3) | C14—H14A | 0.9300 |
C5—C4 | 1.376 (4) | C2—H2B | 0.9300 |
C5—H5A | 0.9300 | C15—H15B | 0.9300 |
N3—C11 | 1.380 (4) | C19—H19A | 0.9300 |
C1—C2 | 1.386 (4) | C12—C13 | 1.354 (4) |
C1—H1A | 0.9300 | C12—H12A | 0.9300 |
C9—H9A | 0.9700 | C13—H13A | 0.9300 |
C9—H9B | 0.9700 | C21—C20 | 1.380 (5) |
C16—O3 | 1.198 (3) | C21—H21A | 0.9300 |
C16—C17 | 1.482 (4) | C20—H20A | 0.9300 |
C4—C3 | 1.353 (5) | ||
C16—O2—C8 | 117.6 (2) | N1—C10—C15 | 133.6 (3) |
C10—N1—N2 | 109.9 (2) | C11—C10—C15 | 122.0 (3) |
C10—N1—C9 | 129.6 (2) | N3—C11—C10 | 108.7 (3) |
N2—N1—C9 | 120.4 (2) | N3—C11—C12 | 130.3 (3) |
C1—C6—C5 | 118.9 (3) | C10—C11—C12 | 120.9 (3) |
C1—C6—C7 | 123.4 (3) | C21—C17—C18 | 117.7 (3) |
C5—C6—C7 | 117.7 (3) | C21—C17—C16 | 119.4 (3) |
O2—C8—C9 | 104.7 (2) | C18—C17—C16 | 122.9 (3) |
O2—C8—C7 | 109.1 (2) | C4—C3—F1 | 118.3 (3) |
C9—C8—C7 | 113.4 (2) | C4—C3—C2 | 123.4 (3) |
O2—C8—H8A | 109.8 | F1—C3—C2 | 118.3 (3) |
C9—C8—H8A | 109.8 | C17—C18—C19 | 118.8 (3) |
C7—C8—H8A | 109.8 | C17—C18—H18A | 120.6 |
N3—N2—N1 | 108.8 (2) | C19—C18—H18A | 120.6 |
O1—C7—C6 | 120.6 (3) | C15—C14—C13 | 122.7 (3) |
O1—C7—C8 | 118.0 (2) | C15—C14—H14A | 118.7 |
C6—C7—C8 | 121.3 (2) | C13—C14—H14A | 118.7 |
C4—C5—C6 | 121.6 (3) | C3—C2—C1 | 118.4 (3) |
C4—C5—H5A | 119.2 | C3—C2—H2B | 120.8 |
C6—C5—H5A | 119.2 | C1—C2—H2B | 120.8 |
N2—N3—C11 | 108.2 (2) | C14—C15—C10 | 115.6 (3) |
C6—C1—C2 | 120.2 (3) | C14—C15—H15B | 122.2 |
C6—C1—H1A | 119.9 | C10—C15—H15B | 122.2 |
C2—C1—H1A | 119.9 | N4—C19—C18 | 124.4 (4) |
N1—C9—C8 | 113.0 (2) | N4—C19—H19A | 117.8 |
N1—C9—H9A | 109.0 | C18—C19—H19A | 117.8 |
C8—C9—H9A | 109.0 | C13—C12—C11 | 117.0 (3) |
N1—C9—H9B | 109.0 | C13—C12—H12A | 121.5 |
C8—C9—H9B | 109.0 | C11—C12—H12A | 121.5 |
H9A—C9—H9B | 107.8 | C12—C13—C14 | 121.7 (3) |
O3—C16—O2 | 123.1 (3) | C12—C13—H13A | 119.1 |
O3—C16—C17 | 125.8 (3) | C14—C13—H13A | 119.1 |
O2—C16—C17 | 111.1 (3) | C17—C21—C20 | 118.8 (4) |
C3—C4—C5 | 117.5 (3) | C17—C21—H21A | 120.6 |
C3—C4—H4A | 121.3 | C20—C21—H21A | 120.6 |
C5—C4—H4A | 121.3 | N4—C20—C21 | 124.2 (4) |
C19—N4—C20 | 116.1 (3) | N4—C20—H20A | 117.9 |
N1—C10—C11 | 104.3 (2) | C21—C20—H20A | 117.9 |
C16—O2—C8—C9 | 167.5 (2) | N2—N3—C11—C12 | 179.0 (3) |
C16—O2—C8—C7 | −70.8 (3) | N1—C10—C11—N3 | 0.0 (3) |
C10—N1—N2—N3 | −0.3 (3) | C15—C10—C11—N3 | −179.7 (3) |
C9—N1—N2—N3 | 176.9 (2) | N1—C10—C11—C12 | −179.3 (3) |
C1—C6—C7—O1 | −173.5 (3) | C15—C10—C11—C12 | 1.0 (5) |
C5—C6—C7—O1 | 7.5 (4) | O3—C16—C17—C21 | 7.9 (5) |
C1—C6—C7—C8 | 5.5 (4) | O2—C16—C17—C21 | −171.9 (3) |
C5—C6—C7—C8 | −173.5 (3) | O3—C16—C17—C18 | −172.3 (3) |
O2—C8—C7—O1 | −22.7 (4) | O2—C16—C17—C18 | 7.9 (4) |
C9—C8—C7—O1 | 93.6 (3) | C5—C4—C3—F1 | 178.9 (3) |
O2—C8—C7—C6 | 158.3 (2) | C5—C4—C3—C2 | −0.1 (5) |
C9—C8—C7—C6 | −85.5 (3) | C21—C17—C18—C19 | −1.9 (5) |
C1—C6—C5—C4 | 0.4 (5) | C16—C17—C18—C19 | 178.3 (3) |
C7—C6—C5—C4 | 179.5 (3) | C4—C3—C2—C1 | −1.1 (5) |
N1—N2—N3—C11 | 0.4 (3) | F1—C3—C2—C1 | 179.9 (3) |
C5—C6—C1—C2 | −1.7 (5) | C6—C1—C2—C3 | 2.1 (5) |
C7—C6—C1—C2 | 179.2 (3) | C13—C14—C15—C10 | 0.6 (5) |
C10—N1—C9—C8 | 96.4 (3) | N1—C10—C15—C14 | 179.8 (3) |
N2—N1—C9—C8 | −80.3 (3) | C11—C10—C15—C14 | −0.6 (5) |
O2—C8—C9—N1 | 65.1 (3) | C20—N4—C19—C18 | 0.7 (6) |
C7—C8—C9—N1 | −53.7 (3) | C17—C18—C19—N4 | 0.8 (5) |
C8—O2—C16—O3 | −3.0 (5) | N3—C11—C12—C13 | 179.5 (3) |
C8—O2—C16—C17 | 176.8 (2) | C10—C11—C12—C13 | −1.4 (5) |
C6—C5—C4—C3 | 0.5 (5) | C11—C12—C13—C14 | 1.4 (6) |
N2—N1—C10—C11 | 0.2 (3) | C15—C14—C13—C12 | −1.1 (6) |
C9—N1—C10—C11 | −176.7 (3) | C18—C17—C21—C20 | 1.4 (5) |
N2—N1—C10—C15 | 179.9 (3) | C16—C17—C21—C20 | −178.7 (3) |
C9—N1—C10—C15 | 3.0 (5) | C19—N4—C20—C21 | −1.2 (6) |
N2—N3—C11—C10 | −0.3 (4) | C17—C21—C20—N4 | 0.1 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9A···O1i | 0.97 | 2.29 | 3.247 (4) | 167 |
C12—H12A···N4ii | 0.93 | 2.48 | 3.386 (5) | 164 |
C13—H13A···O3iii | 0.93 | 2.49 | 3.185 (5) | 132 |
C15—H15B···O1i | 0.93 | 2.58 | 3.309 (4) | 136 |
C1—H1A···Cg1iv | 0.93 | 3.08 | 3.811 | 137 |
Symmetry codes: (i) −x+1/2, y−1/2, z; (ii) x+1/2, −y+3/2, −z; (iii) x+1/2, y, −z+1/2; (iv) x, −y−3/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C21H15FN4O3 |
Mr | 390.37 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 293 |
a, b, c (Å) | 18.475 (2), 10.3014 (13), 19.723 (3) |
V (Å3) | 3753.7 (8) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.40 × 0.05 × 0.03 |
Data collection | |
Diffractometer | Siemens SMART 1000 CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.960, 0.997 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19822, 3706, 1930 |
Rint | 0.073 |
(sin θ/λ)max (Å−1) | 0.618 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.156, 0.94 |
No. of reflections | 3706 |
No. of parameters | 262 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.14, −0.14 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 1997a), SHELXL97 (Sheldrick, 1997a), SHELXTL (Sheldrick, 1997b) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9A···O1i | 0.97 | 2.29 | 3.247 (4) | 167.07 |
C12—H12A···N4ii | 0.93 | 2.48 | 3.386 (5) | 163.82 |
C13—H13A···O3iii | 0.93 | 2.49 | 3.185 (5) | 131.68 |
C15—H15B···O1i | 0.93 | 2.58 | 3.309 (4) | 136.00 |
C1—H1A···Cg1iv | 0.93 | 3.075 | 3.811 | 137.26 |
Symmetry codes: (i) −x+1/2, y−1/2, z; (ii) x+1/2, −y+3/2, −z; (iii) x+1/2, y, −z+1/2; (iv) x, −y−3/2, z−1/2. |
Recently we have reported the structure of 2-(1H-benzotriazol-1-yl)-1-(4-chlorobenzoyl)ethyl isonicotinate (II) (Han et al., 2007). As part of our ongoing studies of triazole derivatives, the title compound, (I), was synthesized and its structure is presented here.
All bond lengths and angles are within normal ranges (Allen et al., 1987) and are comparable with those in the related compound, (II). The benzotriazole system is essentially planar, with a dihedral angle of 0.32 (2)/% between the triazole ring A (N1—N3/C10/C11) and benzene ring B (C10—C15). The mean plane of the benzotriazole group makes dihedral angles of 62.83 (1) and 51.71 (1)/% with the pyridine ring C (N4/C17—C21) and benzene ring D (C1—C6), respectively. The dihedral angle between the latter two aromatic C and D rings is 65.51 (2)/%.
In the crystal structure, molecules are linked into chains along the b axis by intermolecular C9—H9A···O1 and C15—H15B···O1 hydrogen bonds. C12—H12A···N4 interactions connect the chains into three-dimensional network (Fig. 2). The packing is further stabilized by a C—H···Cg1 (Table 1) interaction, Cg1 is the centroid of the C10···C15 ring. The distance of 3.689 /%A between the centroids of the triazole and pyridine rings with the symmetry code (1/2 - x, -1/2 + y, z) suggests a possible π-π interaction