The title compound, C
21H
16N
4Cl
2, was prepared by the reaction of 4-(2,6-dichlorobenzylidenamino)-3,5-diphenyl-4
H-1,2,4-triazole and NaBH
4. The supramolecular structure is defined by N—H
N and C—H
N hydrogen bonds, π–π stacking and C—H
π interactions.
Supporting information
CCDC reference: 262456
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean (C-C) = 0.004 Å
- R factor = 0.036
- wR factor = 0.079
- Data-to-parameter ratio = 14.9
checkCIF/PLATON results
No syntax errors found
Alert level C
GOODF01_ALERT_2_C The least squares goodness of fit parameter lies
outside the range 0.80 <> 2.00
Goodness of fit given = 0.752
PLAT026_ALERT_3_C Ratio Observed / Unique Reflections too Low .... 49 Perc.
PLAT199_ALERT_1_C Check the Reported cell_measurement_temperature 293
PLAT200_ALERT_1_C Check the Reported cell_ambient_temperature .... 293
PLAT230_ALERT_2_C Hirshfeld Test Diff for Cl2 - C20 .. 5.14 su
0 ALERT level A = In general: serious problem
0 ALERT level B = Potentially serious problem
5 ALERT level C = Check and explain
0 ALERT level G = General alerts; check
2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
2 ALERT type 2 Indicator that the structure model may be wrong or deficient
1 ALERT type 3 Indicator that the structure quality may be low
0 ALERT type 4 Improvement, methodology, query or suggestion
Data collection: X-AREA (Stoe & Cie, 2002); cell refinement: X-AREA; data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEPIII (Burnett & Johnson, 1996); software used to prepare material for publication: WinGX (Farrugia, 1997) and PARST (Nardelli, 1995).
4-(2,6-Dichlorobenzylamino)-3,5-diphenyl-4
H-1,2,4-triazole
top
Crystal data top
C21H16Cl2N4 | F(000) = 1632 |
Mr = 395.28 | Dx = 1.392 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 14312 reflections |
a = 23.5075 (13) Å | θ = 1.7–25.7° |
b = 13.9199 (10) Å | µ = 0.36 mm−1 |
c = 11.531 (8) Å | T = 293 K |
V = 3773 (3) Å3 | Plate, colorless |
Z = 8 | 0.42 × 0.25 × 0.10 mm |
Data collection top
Stoe IPDS-II diffractometer | 3705 independent reflections |
Radiation source: fine-focus sealed tube | 1822 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.096 |
Detector resolution: 6.67 pixels mm-1 | θmax = 26.0°, θmin = 1.7° |
ω scans | h = −28→28 |
Absorption correction: integration (X-RED32; Stoe & Cie 2002) | k = −17→17 |
Tmin = 0.882, Tmax = 0.968 | l = −13→14 |
36036 measured reflections | |
Refinement top
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)] = 0.036 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.079 | w = 1/[σ2(Fo2) + (0.0403P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.75 | (Δ/σ)max = 0.001 |
3705 reflections | Δρmax = 0.14 e Å−3 |
249 parameters | Δρmin = −0.20 e Å−3 |
0 restraints | Extinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.00149 (16) |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
C16 | 0.43219 (11) | 0.2405 (2) | 0.0230 (3) | 0.0795 (8) | |
H16 | 0.4547 | 0.2740 | 0.0755 | 0.095* | |
Cl1 | 0.38978 (3) | 0.09506 (5) | 0.30725 (6) | 0.0712 (2) | |
C17 | 0.37396 (10) | 0.23614 (17) | 0.0386 (2) | 0.0640 (7) | |
H17 | 0.3574 | 0.2662 | 0.1023 | 0.077* | |
C15 | 0.45694 (13) | 0.1949 (2) | −0.0709 (3) | 0.0931 (10) | |
H15 | 0.4961 | 0.1981 | −0.0820 | 0.112* | |
N3 | 0.26983 (8) | 0.17447 (13) | 0.18068 (16) | 0.0492 (5) | |
C8 | 0.08401 (10) | 0.20954 (18) | 0.2701 (2) | 0.0656 (7) | |
H8 | 0.0792 | 0.2483 | 0.3350 | 0.079* | |
C7 | 0.13296 (9) | 0.21687 (16) | 0.2046 (2) | 0.0557 (6) | |
H7 | 0.1609 | 0.2608 | 0.2254 | 0.067* | |
C12 | 0.34009 (10) | 0.18709 (16) | −0.0401 (2) | 0.0557 (6) | |
C24 | 0.36721 (9) | 0.02287 (15) | 0.1941 (2) | 0.0532 (6) | |
C18 | 0.26660 (9) | 0.07805 (15) | 0.23125 (18) | 0.0514 (6) | |
H18A | 0.2286 | 0.0522 | 0.2217 | 0.062* | |
H18B | 0.2751 | 0.0808 | 0.3135 | 0.062* | |
N4 | 0.24637 (8) | 0.17897 (12) | 0.06831 (15) | 0.0479 (4) | |
C14 | 0.42387 (15) | 0.1452 (2) | −0.1471 (3) | 0.0922 (9) | |
H14 | 0.4407 | 0.1135 | −0.2092 | 0.111* | |
C23 | 0.40785 (11) | −0.02410 (18) | 0.1293 (2) | 0.0678 (7) | |
H23 | 0.4462 | −0.0177 | 0.1473 | 0.081* | |
C3 | 0.27783 (10) | 0.18206 (15) | −0.0315 (2) | 0.0529 (6) | |
C9 | 0.04250 (11) | 0.1451 (2) | 0.2395 (2) | 0.0752 (8) | |
H9 | 0.0096 | 0.1401 | 0.2839 | 0.090* | |
C19 | 0.30904 (9) | 0.01473 (14) | 0.17057 (18) | 0.0484 (5) | |
C13 | 0.36570 (12) | 0.14162 (18) | −0.1332 (2) | 0.0736 (7) | |
H13 | 0.3435 | 0.1084 | −0.1866 | 0.088* | |
C6 | 0.14062 (9) | 0.15939 (16) | 0.10849 (19) | 0.0522 (6) | |
C5 | 0.19076 (9) | 0.16790 (15) | 0.0334 (2) | 0.0513 (6) | |
N2 | 0.24381 (9) | 0.17586 (13) | −0.12159 (16) | 0.0611 (5) | |
N1 | 0.18845 (8) | 0.16650 (14) | −0.08001 (17) | 0.0606 (5) | |
C22 | 0.39108 (12) | −0.08031 (18) | 0.0380 (2) | 0.0754 (7) | |
H22 | 0.4184 | −0.1103 | −0.0078 | 0.091* | |
C10 | 0.04949 (11) | 0.0882 (2) | 0.1437 (3) | 0.0796 (8) | |
H10 | 0.0211 | 0.0448 | 0.1232 | 0.096* | |
C11 | 0.09824 (10) | 0.09459 (18) | 0.0773 (2) | 0.0680 (7) | |
H11 | 0.1027 | 0.0559 | 0.0122 | 0.082* | |
C20 | 0.29440 (10) | −0.04689 (15) | 0.0812 (2) | 0.0532 (6) | |
C21 | 0.33454 (12) | −0.09303 (17) | 0.0131 (2) | 0.0672 (7) | |
H21 | 0.3233 | −0.1319 | −0.0484 | 0.081* | |
Cl2 | 0.22309 (3) | −0.06788 (4) | 0.05001 (5) | 0.0719 (2) | |
H3 | 0.2553 (9) | 0.2212 (15) | 0.2237 (19) | 0.056 (7)* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
C16 | 0.0559 (17) | 0.0874 (19) | 0.095 (2) | −0.0009 (15) | −0.0037 (16) | 0.0261 (18) |
Cl1 | 0.0613 (4) | 0.0792 (4) | 0.0731 (4) | −0.0028 (3) | −0.0119 (3) | −0.0127 (4) |
C17 | 0.0535 (15) | 0.0669 (15) | 0.0716 (18) | 0.0035 (12) | 0.0041 (13) | 0.0125 (14) |
C15 | 0.0628 (19) | 0.101 (2) | 0.115 (3) | 0.0200 (18) | 0.026 (2) | 0.042 (2) |
N3 | 0.0534 (11) | 0.0518 (12) | 0.0424 (11) | 0.0034 (9) | −0.0009 (9) | −0.0036 (10) |
C8 | 0.0562 (16) | 0.0870 (19) | 0.0535 (16) | 0.0089 (14) | 0.0000 (13) | 0.0011 (14) |
C7 | 0.0510 (14) | 0.0654 (15) | 0.0506 (15) | 0.0015 (11) | −0.0047 (12) | 0.0024 (13) |
C12 | 0.0595 (15) | 0.0518 (13) | 0.0559 (15) | 0.0067 (11) | 0.0106 (13) | 0.0110 (12) |
C24 | 0.0556 (14) | 0.0510 (13) | 0.0529 (14) | 0.0009 (11) | −0.0019 (12) | 0.0013 (11) |
C18 | 0.0496 (13) | 0.0641 (15) | 0.0404 (12) | −0.0013 (11) | −0.0010 (10) | 0.0029 (12) |
N4 | 0.0503 (11) | 0.0505 (10) | 0.0430 (10) | −0.0005 (8) | −0.0008 (9) | −0.0004 (9) |
C14 | 0.092 (2) | 0.096 (2) | 0.089 (2) | 0.0221 (19) | 0.032 (2) | 0.0161 (19) |
C23 | 0.0610 (16) | 0.0668 (16) | 0.0757 (18) | 0.0104 (13) | 0.0031 (14) | 0.0004 (15) |
C3 | 0.0595 (15) | 0.0491 (13) | 0.0500 (14) | 0.0013 (11) | 0.0077 (13) | 0.0030 (11) |
C9 | 0.0504 (16) | 0.098 (2) | 0.077 (2) | −0.0021 (15) | 0.0047 (14) | 0.0080 (17) |
C19 | 0.0566 (14) | 0.0465 (12) | 0.0420 (13) | −0.0011 (11) | 0.0002 (11) | 0.0065 (11) |
C13 | 0.0773 (19) | 0.0735 (17) | 0.0701 (18) | 0.0056 (14) | 0.0205 (15) | 0.0054 (15) |
C6 | 0.0463 (14) | 0.0585 (14) | 0.0518 (14) | 0.0017 (11) | −0.0038 (11) | 0.0055 (12) |
C5 | 0.0542 (15) | 0.0516 (13) | 0.0480 (14) | 0.0007 (11) | −0.0058 (12) | −0.0005 (11) |
N2 | 0.0662 (13) | 0.0690 (13) | 0.0481 (11) | −0.0001 (10) | 0.0000 (11) | 0.0060 (11) |
N1 | 0.0613 (13) | 0.0699 (13) | 0.0506 (13) | −0.0018 (10) | −0.0025 (10) | 0.0020 (10) |
C22 | 0.085 (2) | 0.0667 (17) | 0.0749 (19) | 0.0208 (15) | 0.0094 (16) | −0.0075 (15) |
C10 | 0.0572 (17) | 0.089 (2) | 0.093 (2) | −0.0132 (14) | −0.0015 (15) | −0.0045 (18) |
C11 | 0.0561 (16) | 0.0769 (17) | 0.0710 (17) | −0.0056 (13) | −0.0023 (13) | −0.0102 (14) |
C20 | 0.0614 (15) | 0.0466 (12) | 0.0515 (14) | −0.0017 (11) | −0.0053 (12) | 0.0040 (11) |
C21 | 0.092 (2) | 0.0525 (14) | 0.0575 (16) | 0.0075 (14) | −0.0043 (15) | −0.0071 (12) |
Cl2 | 0.0760 (4) | 0.0719 (4) | 0.0678 (4) | −0.0145 (3) | −0.0128 (3) | −0.0052 (3) |
Geometric parameters (Å, º) top
C16—C17 | 1.382 (3) | N4—C3 | 1.369 (3) |
C16—C15 | 1.383 (4) | N4—C5 | 1.376 (3) |
C16—H16 | 0.9300 | C14—C13 | 1.378 (4) |
Cl1—C24 | 1.730 (2) | C14—H14 | 0.9300 |
C17—C12 | 1.387 (3) | C23—C22 | 1.370 (3) |
C17—H17 | 0.9300 | C23—H23 | 0.9300 |
C15—C14 | 1.362 (4) | C3—N2 | 1.313 (3) |
C15—H15 | 0.9300 | C9—C10 | 1.369 (4) |
N3—N4 | 1.410 (2) | C9—H9 | 0.9300 |
N3—C18 | 1.465 (3) | C19—C20 | 1.385 (3) |
N3—H3 | 0.89 (2) | C13—H13 | 0.9300 |
C8—C9 | 1.371 (3) | C6—C11 | 1.391 (3) |
C8—C7 | 1.380 (3) | C6—C5 | 1.467 (3) |
C8—H8 | 0.9300 | C5—N1 | 1.309 (3) |
C7—C6 | 1.379 (3) | N2—N1 | 1.393 (3) |
C7—H7 | 0.9300 | C22—C21 | 1.371 (3) |
C12—C13 | 1.384 (3) | C22—H22 | 0.9300 |
C12—C3 | 1.469 (3) | C10—C11 | 1.381 (3) |
C24—C23 | 1.378 (3) | C10—H10 | 0.9300 |
C24—C19 | 1.399 (3) | C11—H11 | 0.9300 |
C18—C19 | 1.504 (3) | C20—C21 | 1.385 (3) |
C18—H18A | 0.9700 | C20—Cl2 | 1.739 (2) |
C18—H18B | 0.9700 | C21—H21 | 0.9300 |
| | | |
C17—C16—C15 | 119.9 (3) | C22—C23—H23 | 120.4 |
C17—C16—H16 | 120.0 | C24—C23—H23 | 120.4 |
C15—C16—H16 | 120.0 | N2—C3—N4 | 109.5 (2) |
C16—C17—C12 | 120.3 (3) | N2—C3—C12 | 123.9 (2) |
C16—C17—H17 | 119.9 | N4—C3—C12 | 126.6 (2) |
C12—C17—H17 | 119.9 | C10—C9—C8 | 120.0 (2) |
C14—C15—C16 | 119.9 (3) | C10—C9—H9 | 120.0 |
C14—C15—H15 | 120.1 | C8—C9—H9 | 120.0 |
C16—C15—H15 | 120.1 | C20—C19—C24 | 115.9 (2) |
N4—N3—C18 | 112.72 (16) | C20—C19—C18 | 123.0 (2) |
N4—N3—H3 | 109.3 (14) | C24—C19—C18 | 120.73 (19) |
C18—N3—H3 | 115.4 (13) | C14—C13—C12 | 120.4 (3) |
C9—C8—C7 | 120.1 (2) | C14—C13—H13 | 119.8 |
C9—C8—H8 | 120.0 | C12—C13—H13 | 119.8 |
C7—C8—H8 | 120.0 | C7—C6—C11 | 119.4 (2) |
C6—C7—C8 | 120.4 (2) | C7—C6—C5 | 122.2 (2) |
C6—C7—H7 | 119.8 | C11—C6—C5 | 118.4 (2) |
C8—C7—H7 | 119.8 | N1—C5—N4 | 109.5 (2) |
C13—C12—C17 | 118.9 (2) | N1—C5—C6 | 123.7 (2) |
C13—C12—C3 | 117.6 (2) | N4—C5—C6 | 126.8 (2) |
C17—C12—C3 | 123.5 (2) | C3—N2—N1 | 107.63 (18) |
C23—C24—C19 | 122.3 (2) | C5—N1—N2 | 107.69 (18) |
C23—C24—Cl1 | 118.16 (19) | C23—C22—C21 | 120.9 (2) |
C19—C24—Cl1 | 119.53 (17) | C23—C22—H22 | 119.5 |
N3—C18—C19 | 108.50 (17) | C21—C22—H22 | 119.5 |
N3—C18—H18A | 110.0 | C9—C10—C11 | 120.6 (2) |
C19—C18—H18A | 110.0 | C9—C10—H10 | 119.7 |
N3—C18—H18B | 110.0 | C11—C10—H10 | 119.7 |
C19—C18—H18B | 110.0 | C10—C11—C6 | 119.5 (2) |
H18A—C18—H18B | 108.4 | C10—C11—H11 | 120.2 |
C3—N4—C5 | 105.70 (19) | C6—C11—H11 | 120.2 |
C3—N4—N3 | 124.27 (18) | C19—C20—C21 | 122.7 (2) |
C5—N4—N3 | 129.44 (18) | C19—C20—Cl2 | 119.84 (18) |
C15—C14—C13 | 120.6 (3) | C21—C20—Cl2 | 117.50 (19) |
C15—C14—H14 | 119.7 | C22—C21—C20 | 118.8 (2) |
C13—C14—H14 | 119.7 | C22—C21—H21 | 120.6 |
C22—C23—C24 | 119.2 (2) | C20—C21—H21 | 120.6 |
| | | |
C15—C16—C17—C12 | −0.7 (4) | C3—C12—C13—C14 | 178.8 (2) |
C17—C16—C15—C14 | −0.5 (4) | C8—C7—C6—C11 | 0.7 (3) |
C9—C8—C7—C6 | −0.3 (3) | C8—C7—C6—C5 | 177.1 (2) |
C16—C17—C12—C13 | 0.9 (3) | C3—N4—C5—N1 | −1.3 (2) |
C16—C17—C12—C3 | −177.8 (2) | N3—N4—C5—N1 | −172.70 (19) |
N4—N3—C18—C19 | 72.4 (2) | C3—N4—C5—C6 | 179.1 (2) |
C18—N3—N4—C3 | −103.2 (2) | N3—N4—C5—C6 | 7.7 (3) |
C18—N3—N4—C5 | 66.8 (3) | C7—C6—C5—N1 | −136.5 (2) |
C16—C15—C14—C13 | 1.4 (5) | C11—C6—C5—N1 | 39.9 (3) |
C19—C24—C23—C22 | 0.5 (4) | C7—C6—C5—N4 | 43.1 (3) |
Cl1—C24—C23—C22 | −178.87 (19) | C11—C6—C5—N4 | −140.5 (2) |
C5—N4—C3—N2 | 1.5 (2) | N4—C3—N2—N1 | −1.2 (2) |
N3—N4—C3—N2 | 173.51 (18) | C12—C3—N2—N1 | 176.32 (19) |
C5—N4—C3—C12 | −175.9 (2) | N4—C5—N1—N2 | 0.6 (2) |
N3—N4—C3—C12 | −3.9 (3) | C6—C5—N1—N2 | −179.77 (19) |
C13—C12—C3—N2 | −30.1 (3) | C3—N2—N1—C5 | 0.4 (2) |
C17—C12—C3—N2 | 148.7 (2) | C24—C23—C22—C21 | −2.4 (4) |
C13—C12—C3—N4 | 147.0 (2) | C8—C9—C10—C11 | 0.3 (4) |
C17—C12—C3—N4 | −34.2 (3) | C9—C10—C11—C6 | 0.2 (4) |
C7—C8—C9—C10 | −0.2 (4) | C7—C6—C11—C10 | −0.7 (4) |
C23—C24—C19—C20 | 2.7 (3) | C5—C6—C11—C10 | −177.2 (2) |
Cl1—C24—C19—C20 | −177.91 (15) | C24—C19—C20—C21 | −4.3 (3) |
C23—C24—C19—C18 | −170.8 (2) | C18—C19—C20—C21 | 169.1 (2) |
Cl1—C24—C19—C18 | 8.5 (3) | C24—C19—C20—Cl2 | 176.27 (16) |
N3—C18—C19—C20 | −98.0 (2) | C18—C19—C20—Cl2 | −10.3 (3) |
N3—C18—C19—C24 | 75.1 (2) | C23—C22—C21—C20 | 0.8 (4) |
C15—C14—C13—C12 | −1.2 (4) | C19—C20—C21—C22 | 2.7 (4) |
C17—C12—C13—C14 | 0.0 (4) | Cl2—C20—C21—C22 | −177.92 (19) |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3···N2i | 0.89 (2) | 2.30 (2) | 3.148 (3) | 159.1 (19) |
C7—H7···N1i | 0.93 | 2.54 | 3.241 (3) | 132 |
C17—H17···N3 | 0.93 | 2.59 | 3.068 (3) | 113 |
C18—H18A···Cl2 | 0.97 | 2.59 | 3.089 (2) | 112 |
Symmetry code: (i) x, −y+1/2, z+1/2. |