The title compound, C
17H
11ClN
4O
2, consists of chlorophenyl (
A), isoxazolyl (
B), oxadiazolyl (C) and phenyl (D) rings with twist angles between the planes through neighbouring rings
A/
B,
B/
C and
C/
D of 14.9 (1), 1.8 (1) and 8.9 (1)° respectively. In the crystal, adjacent molecules related by inversion symmetry form columns parallel to the [010] direction through π–π stacking [shortest centroid–centroid separation = 3.6203 (10) Å]; these are cross-linked by N—H

N interactions in the [001] direction.
Supporting information
CCDC reference: 1893181
Key indicators
- Single-crystal X-ray study
- T = 296 K
- Mean
(C-C) = 0.003 Å
- R factor = 0.045
- wR factor = 0.112
- Data-to-parameter ratio = 17.1
checkCIF/PLATON results
No syntax errors found
Datablock: I
Alert level C
PLAT906_ALERT_3_C Large K Value in the Analysis of Variance ...... 2.144 Check
Alert level G
PLAT007_ALERT_5_G Number of Unrefined Donor-H Atoms .............. 1 Report
PLAT395_ALERT_2_G Deviating X-O-Y Angle From 120 for O1 109.3 Degree
PLAT398_ALERT_2_G Deviating C-O-C Angle From 120 for O2 102.0 Degree
PLAT802_ALERT_4_G CIF Input Record(s) with more than 80 Characters 1 Info
PLAT910_ALERT_3_G Missing # of FCF Reflection(s) Below Theta(Min). 2 Note
PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 549 Note
PLAT978_ALERT_2_G Number C-C Bonds with Positive Residual Density. 10 Info
0 ALERT level A = Most likely a serious problem - resolve or explain
0 ALERT level B = A potentially serious problem, consider carefully
1 ALERT level C = Check. Ensure it is not caused by an omission or oversight
7 ALERT level G = General information/check it is not something unexpected
0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
3 ALERT type 2 Indicator that the structure model may be wrong or deficient
2 ALERT type 3 Indicator that the structure quality may be low
2 ALERT type 4 Improvement, methodology, query or suggestion
1 ALERT type 5 Informative message, check
checkCIF publication errors
Alert level A
PUBL024_ALERT_1_A The number of authors is greater than 5.
Please specify the role of each of the co-authors
for your paper.
1 ALERT level A = Data missing that is essential or data in wrong format
0 ALERT level G = General alerts. Data that may be required is missing
Data collection: CrysAlis PRO (Rigaku OD, 2015); cell refinement: CrysAlis PRO (Rigaku OD, 2015); data reduction: CrysAlis PRO (Rigaku OD, 2015); program(s) used to solve structure: SHELXS (Sheldrick, 2008); program(s) used to refine structure: SHELXL2018 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows and WinGX (Farrugia, 2012); software used to prepare material for publication: CHEMDRAW Ultra (Cambridge Soft, 2001).
5-[5-(4-Chlorophenyl)isoxazol-3-yl]-
N-phenyl-1,3,4-oxadiazol-2-amine
top
Crystal data top
C17H11ClN4O2 | F(000) = 696 |
Mr = 338.75 | Dx = 1.508 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 17.8925 (15) Å | Cell parameters from 3445 reflections |
b = 7.4168 (6) Å | θ = 3.3–26.7° |
c = 11.5006 (9) Å | µ = 0.27 mm−1 |
β = 102.061 (8)° | T = 296 K |
V = 1492.5 (2) Å3 | Plate, colourless |
Z = 4 | 0.32 × 0.17 × 0.04 mm |
Data collection top
Rigaku Oxford Diffraction SuperNova, Dual, Cu at zero, Atlas diffractometer | 2622 reflections with I > 2σ(I) |
ω scans | Rint = 0.027 |
Absorption correction: gaussian (CrysAlisPro; Rigaku OD, 2015) | θmax = 29.8°, θmin = 3.0° |
Tmin = 0.768, Tmax = 1.000 | h = −24→23 |
13114 measured reflections | k = −10→10 |
3720 independent reflections | l = −13→16 |
Refinement top
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.045 | w = 1/[σ2(Fo2) + (0.039P)2 + 0.4804P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.112 | (Δ/σ)max < 0.001 |
S = 1.06 | Δρmax = 0.25 e Å−3 |
3720 reflections | Δρmin = −0.23 e Å−3 |
218 parameters | Extinction correction: SHELXL-2018/1 (Sheldrick 2018), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
0 restraints | Extinction coefficient: 0.0044 (7) |
Primary atom site location: structure-invariant direct methods | |
Special details top
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell esds are taken
into account individually in the estimation of esds in distances, angles
and torsion angles; correlations between esds in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell esds is used for estimating esds involving l.s. planes. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
C1 | 0.27509 (9) | 0.6433 (2) | 0.57408 (14) | 0.0354 (4) | |
C2 | 0.27554 (10) | 0.5711 (2) | 0.68585 (14) | 0.0380 (4) | |
H2 | 0.321696 | 0.540461 | 0.735750 | 0.046* | |
C3 | 0.20791 (11) | 0.5447 (2) | 0.72307 (15) | 0.0406 (4) | |
H3 | 0.208175 | 0.496146 | 0.797718 | 0.049* | |
C4 | 0.13988 (10) | 0.5911 (2) | 0.64829 (16) | 0.0419 (4) | |
C5 | 0.13775 (10) | 0.6597 (3) | 0.53621 (16) | 0.0443 (4) | |
H5 | 0.091345 | 0.687890 | 0.486141 | 0.053* | |
C6 | 0.20539 (10) | 0.6856 (2) | 0.49975 (15) | 0.0410 (4) | |
H6 | 0.204587 | 0.732140 | 0.424398 | 0.049* | |
C7 | 0.34717 (10) | 0.6763 (2) | 0.53732 (14) | 0.0368 (4) | |
C8 | 0.42112 (10) | 0.6850 (2) | 0.59279 (15) | 0.0411 (4) | |
H8 | 0.441861 | 0.666766 | 0.673050 | 0.049* | |
C9 | 0.45996 (10) | 0.7280 (2) | 0.50222 (15) | 0.0395 (4) | |
C10 | 0.54121 (10) | 0.7559 (2) | 0.50955 (14) | 0.0386 (4) | |
C11 | 0.64134 (9) | 0.8153 (2) | 0.44570 (14) | 0.0363 (4) | |
C12 | 0.76067 (9) | 0.8721 (2) | 0.37782 (14) | 0.0348 (4) | |
C13 | 0.78904 (10) | 0.9338 (2) | 0.28169 (15) | 0.0416 (4) | |
H13 | 0.755572 | 0.967507 | 0.211870 | 0.050* | |
C14 | 0.86646 (11) | 0.9450 (3) | 0.28962 (17) | 0.0480 (5) | |
H14 | 0.885249 | 0.984768 | 0.224560 | 0.058* | |
C15 | 0.91682 (11) | 0.8977 (3) | 0.39347 (17) | 0.0494 (5) | |
H15 | 0.969268 | 0.906781 | 0.398840 | 0.059* | |
C16 | 0.88857 (10) | 0.8372 (3) | 0.48854 (17) | 0.0473 (5) | |
H16 | 0.922266 | 0.805371 | 0.558565 | 0.057* | |
C17 | 0.81049 (10) | 0.8229 (2) | 0.48169 (15) | 0.0392 (4) | |
H17 | 0.791856 | 0.780592 | 0.546287 | 0.047* | |
N1 | 0.41386 (9) | 0.7429 (3) | 0.39846 (14) | 0.0606 (5) | |
N2 | 0.59647 (9) | 0.7436 (2) | 0.59928 (13) | 0.0490 (4) | |
N3 | 0.66384 (8) | 0.7833 (2) | 0.55885 (13) | 0.0487 (4) | |
N4 | 0.68044 (8) | 0.8585 (2) | 0.36244 (12) | 0.0405 (4) | |
H4 | 0.654043 | 0.880249 | 0.292363 | 0.049* | |
O1 | 0.34130 (7) | 0.7092 (2) | 0.42024 (11) | 0.0600 (4) | |
O2 | 0.56429 (6) | 0.80070 (17) | 0.40728 (10) | 0.0409 (3) | |
Cl1 | 0.05523 (3) | 0.56575 (9) | 0.69766 (5) | 0.0682 (2) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
C1 | 0.0365 (9) | 0.0360 (9) | 0.0339 (8) | −0.0021 (7) | 0.0078 (7) | −0.0019 (7) |
C2 | 0.0399 (9) | 0.0403 (9) | 0.0324 (8) | −0.0005 (7) | 0.0046 (7) | −0.0025 (7) |
C3 | 0.0490 (11) | 0.0427 (10) | 0.0317 (8) | −0.0024 (8) | 0.0119 (7) | −0.0009 (8) |
C4 | 0.0389 (10) | 0.0444 (10) | 0.0465 (10) | −0.0004 (8) | 0.0178 (8) | −0.0048 (8) |
C5 | 0.0372 (10) | 0.0494 (11) | 0.0455 (10) | 0.0037 (8) | 0.0069 (8) | 0.0012 (9) |
C6 | 0.0422 (10) | 0.0467 (10) | 0.0344 (9) | 0.0018 (8) | 0.0088 (7) | 0.0054 (8) |
C7 | 0.0375 (9) | 0.0409 (9) | 0.0315 (8) | −0.0010 (7) | 0.0061 (7) | 0.0015 (7) |
C8 | 0.0373 (9) | 0.0538 (11) | 0.0316 (8) | −0.0017 (8) | 0.0062 (7) | −0.0005 (8) |
C9 | 0.0346 (9) | 0.0462 (10) | 0.0373 (9) | −0.0011 (8) | 0.0068 (7) | 0.0013 (8) |
C10 | 0.0348 (9) | 0.0480 (10) | 0.0338 (8) | −0.0012 (8) | 0.0087 (7) | 0.0001 (8) |
C11 | 0.0288 (8) | 0.0430 (9) | 0.0362 (9) | 0.0006 (7) | 0.0046 (7) | −0.0043 (7) |
C12 | 0.0326 (9) | 0.0356 (9) | 0.0357 (8) | −0.0002 (7) | 0.0063 (7) | −0.0050 (7) |
C13 | 0.0367 (9) | 0.0515 (11) | 0.0355 (9) | −0.0013 (8) | 0.0049 (7) | 0.0017 (8) |
C14 | 0.0435 (11) | 0.0560 (12) | 0.0471 (11) | −0.0051 (9) | 0.0154 (8) | 0.0002 (9) |
C15 | 0.0327 (9) | 0.0614 (12) | 0.0544 (11) | −0.0017 (9) | 0.0101 (8) | −0.0043 (10) |
C16 | 0.0372 (10) | 0.0564 (12) | 0.0443 (10) | 0.0034 (9) | −0.0003 (8) | −0.0018 (9) |
C17 | 0.0380 (9) | 0.0444 (10) | 0.0344 (9) | 0.0005 (8) | 0.0059 (7) | −0.0010 (8) |
N1 | 0.0337 (9) | 0.1058 (15) | 0.0422 (9) | −0.0077 (9) | 0.0076 (7) | 0.0204 (9) |
N2 | 0.0364 (8) | 0.0768 (12) | 0.0341 (8) | −0.0046 (8) | 0.0084 (6) | 0.0010 (8) |
N3 | 0.0349 (8) | 0.0784 (12) | 0.0323 (8) | −0.0047 (8) | 0.0059 (6) | −0.0001 (8) |
N4 | 0.0304 (7) | 0.0583 (9) | 0.0316 (7) | 0.0004 (7) | 0.0035 (6) | 0.0050 (7) |
O1 | 0.0337 (7) | 0.1065 (12) | 0.0386 (7) | −0.0082 (7) | 0.0048 (5) | 0.0204 (7) |
O2 | 0.0308 (6) | 0.0564 (8) | 0.0345 (6) | −0.0015 (5) | 0.0050 (5) | 0.0041 (6) |
Cl1 | 0.0494 (3) | 0.0880 (4) | 0.0766 (4) | 0.0034 (3) | 0.0345 (3) | 0.0077 (3) |
Geometric parameters (Å, º) top
C1—C2 | 1.391 (2) | C10—O2 | 1.3665 (19) |
C1—C6 | 1.393 (2) | C11—N3 | 1.301 (2) |
C1—C7 | 1.459 (2) | C11—N4 | 1.338 (2) |
C2—C3 | 1.379 (2) | C11—O2 | 1.3611 (19) |
C2—H2 | 0.9300 | C12—C17 | 1.382 (2) |
C3—C4 | 1.379 (3) | C12—C13 | 1.387 (2) |
C3—H3 | 0.9300 | C12—N4 | 1.413 (2) |
C4—C5 | 1.379 (3) | C13—C14 | 1.372 (3) |
C4—Cl1 | 1.7351 (18) | C13—H13 | 0.9300 |
C5—C6 | 1.375 (2) | C14—C15 | 1.383 (3) |
C5—H5 | 0.9300 | C14—H14 | 0.9300 |
C6—H6 | 0.9300 | C15—C16 | 1.372 (3) |
C7—C8 | 1.345 (2) | C15—H15 | 0.9300 |
C7—O1 | 1.351 (2) | C16—C17 | 1.387 (2) |
C8—C9 | 1.404 (2) | C16—H16 | 0.9300 |
C8—H8 | 0.9300 | C17—H17 | 0.9300 |
C9—N1 | 1.306 (2) | N1—O1 | 1.3952 (19) |
C9—C10 | 1.453 (2) | N2—N3 | 1.411 (2) |
C10—N2 | 1.275 (2) | N4—H4 | 0.8600 |
| | | |
C2—C1—C6 | 119.05 (16) | N3—C11—N4 | 131.36 (16) |
C2—C1—C7 | 119.83 (15) | N3—C11—O2 | 113.02 (15) |
C6—C1—C7 | 121.11 (15) | N4—C11—O2 | 115.62 (14) |
C3—C2—C1 | 120.36 (16) | C17—C12—C13 | 119.92 (16) |
C3—C2—H2 | 119.8 | C17—C12—N4 | 122.98 (15) |
C1—C2—H2 | 119.8 | C13—C12—N4 | 117.08 (15) |
C4—C3—C2 | 119.23 (16) | C14—C13—C12 | 119.99 (17) |
C4—C3—H3 | 120.4 | C14—C13—H13 | 120.0 |
C2—C3—H3 | 120.4 | C12—C13—H13 | 120.0 |
C5—C4—C3 | 121.56 (16) | C13—C14—C15 | 120.58 (18) |
C5—C4—Cl1 | 119.36 (14) | C13—C14—H14 | 119.7 |
C3—C4—Cl1 | 119.07 (14) | C15—C14—H14 | 119.7 |
C6—C5—C4 | 118.86 (17) | C16—C15—C14 | 119.29 (17) |
C6—C5—H5 | 120.6 | C16—C15—H15 | 120.4 |
C4—C5—H5 | 120.6 | C14—C15—H15 | 120.4 |
C5—C6—C1 | 120.92 (16) | C15—C16—C17 | 120.94 (17) |
C5—C6—H6 | 119.5 | C15—C16—H16 | 119.5 |
C1—C6—H6 | 119.5 | C17—C16—H16 | 119.5 |
C8—C7—O1 | 109.14 (15) | C12—C17—C16 | 119.28 (16) |
C8—C7—C1 | 135.40 (16) | C12—C17—H17 | 120.4 |
O1—C7—C1 | 115.45 (14) | C16—C17—H17 | 120.4 |
C7—C8—C9 | 104.44 (15) | C9—N1—O1 | 104.75 (14) |
C7—C8—H8 | 127.8 | C10—N2—N3 | 106.85 (14) |
C9—C8—H8 | 127.8 | C11—N3—N2 | 105.10 (13) |
N1—C9—C8 | 112.40 (16) | C11—N4—C12 | 126.68 (14) |
N1—C9—C10 | 118.31 (15) | C11—N4—H4 | 116.7 |
C8—C9—C10 | 129.29 (16) | C12—N4—H4 | 116.7 |
N2—C10—O2 | 113.04 (15) | C7—O1—N1 | 109.26 (13) |
N2—C10—C9 | 129.36 (16) | C11—O2—C10 | 101.99 (13) |
O2—C10—C9 | 117.60 (14) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C17—H17···N3 | 0.93 | 2.33 | 2.955 (2) | 125 |
N4—H4···N2i | 0.86 | 2.42 | 3.176 (2) | 146 |
Symmetry code: (i) x, −y+3/2, z−1/2. |