The molecule of the title compound, C
42H
32N
6O, is built up from one pyrazole ring linked to three phenyl rings and to an approximately planar [maximum deviation = 0.0455 (15) Å] quinoxaline system connected to a phenylbenzohydrazide group. The pyrazole ring assumes an envelope conformation, the C atom attached to the quinoxalin-3-yl ring system being the flap atom. The dihedral angle between the two phenyl rings of the phenylbenzohydrazide group is of 58.27 (9)°. The mean plane through the pyrazole ring is nearly perpendicular to the quinoxaline ring system and to the phenyl ring attached to the opposite side, forming dihedral angles of 82.58 (7) and 87.29 (9)°, respectively. An intramolecular C—H
O hydrogen bond is present. In the crystal, molecules are linked by pairs of N—H
N hydrogen bonds, forming inversion dimers, which are further connected by C—H
N hydrogen bonds into chains parallel to the
b axis.
Supporting information
CCDC reference: 961837
Key indicators
- Single-crystal X-ray study
- T = 296 K
- Mean (C-C) = 0.003 Å
- R factor = 0.047
- wR factor = 0.117
- Data-to-parameter ratio = 18.7
checkCIF/PLATON results
No syntax errors found
Alert level C
PLAT220_ALERT_2_C Large Non-Solvent C Ueq(max)/Ueq(min) ... 3.9 Ratio
PLAT230_ALERT_2_C Hirshfeld Test Diff for N2 -- C1 .. 5.3 su
PLAT241_ALERT_2_C Check High Ueq as Compared to Neighbors for C40
PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 7
Alert level G
PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? Do !
PLAT007_ALERT_5_G Note: Number of Unrefined Donor-H Atoms ........ 1
PLAT128_ALERT_4_G Note: Alternate Setting of Space-group P21/c . P21/n
PLAT793_ALERT_4_G The Model has Chirality at C2 (Verify) .... R
PLAT793_ALERT_4_G The Model has Chirality at C3 (Verify) .... S
PLAT912_ALERT_4_G Missing # of FCF Reflections Above STh/L= 0.600 50
0 ALERT level A = Most likely a serious problem - resolve or explain
0 ALERT level B = A potentially serious problem, consider carefully
4 ALERT level C = Check. Ensure it is not caused by an omission or oversight
6 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
1 ALERT type 3 Indicator that the structure quality may be low
4 ALERT type 4 Improvement, methodology, query or suggestion
2 ALERT type 5 Informative message, check
A mixture of α-chlorobenzylidene phenylhydrazine (8.1 mmol) and
triethylamine (8.1 mmol) in THF (40 mL) was added at room temperature
to a solution of 3-styryl-quinoxalin-2-one (6.5 mmol) in THF (20 mL).
The reaction mixture was heated under reflux for 48 h. The inorganic salts
formed were filtered off. The filtrate was evaporated under reduced pressure
and the crude product obtained was recrystallized from ethanol to afford
crystals of the title compound.
All H atoms could be located in a difference Fourier map and
were treated as riding
with C—H = 0.93 Å, N—H = 0.89 Å and with
Uiso(H) = 1.2 Ueq(C, N). Six reflections
affected by the beam stop were omitted because the difference between
their calculated and observed intensities was very large.
Data collection: APEX2 (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: PLATON (Spek, 2009) and publCIF (Westrip, 2010).
N'-Phenyl-
N'-[3-(2,4,5-triphenyl-2,5-dihydro-1
H-pyrazol-3-yl)quinoxalin-2-yl]benzohydrazide
top
Crystal data top
C42H32N6O | F(000) = 1336 |
Mr = 636.74 | Dx = 1.237 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 8306 reflections |
a = 12.0127 (3) Å | θ = 2.7–28.2° |
b = 19.4679 (5) Å | µ = 0.08 mm−1 |
c = 15.2083 (4) Å | T = 296 K |
β = 106.045 (1)° | Block, colourless |
V = 3418.09 (15) Å3 | 0.41 × 0.32 × 0.21 mm |
Z = 4 | |
Data collection top
Bruker X8 APEXII area-detector diffractometer | 4919 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.050 |
Graphite monochromator | θmax = 28.2°, θmin = 2.7° |
ϕ and ω scans | h = −15→15 |
39727 measured reflections | k = −25→25 |
8306 independent reflections | l = −20→17 |
Refinement top
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.047 | H-atom parameters constrained |
wR(F2) = 0.117 | w = 1/[σ2(Fo2) + (0.0478P)2 + 0.4886P] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max < 0.001 |
8306 reflections | Δρmax = 0.20 e Å−3 |
443 parameters | Δρmin = −0.19 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0019 (4) |
Crystal data top
C42H32N6O | V = 3418.09 (15) Å3 |
Mr = 636.74 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 12.0127 (3) Å | µ = 0.08 mm−1 |
b = 19.4679 (5) Å | T = 296 K |
c = 15.2083 (4) Å | 0.41 × 0.32 × 0.21 mm |
β = 106.045 (1)° | |
Data collection top
Bruker X8 APEXII area-detector diffractometer | 4919 reflections with I > 2σ(I) |
39727 measured reflections | Rint = 0.050 |
8306 independent reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.20 e Å−3 |
8306 reflections | Δρmin = −0.19 e Å−3 |
443 parameters | |
Special details top
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are
estimated using the full covariance matrix. The cell s.u.'s are taken into
account individually in the estimation of s.u.'s in distances, angles and
torsion angles; correlations between s.u.'s in cell parameters are only used
when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell s.u.'s is used for estimating s.u.'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 | |
C1 | 0.13275 (13) | 0.33151 (8) | 0.47673 (10) | 0.0316 (3) | |
C2 | 0.06730 (13) | 0.27133 (8) | 0.42495 (9) | 0.0297 (3) | |
H2 | 0.1159 | 0.2304 | 0.4300 | 0.036* | |
C3 | −0.02281 (13) | 0.26028 (7) | 0.47999 (9) | 0.0274 (3) | |
H3 | −0.0999 | 0.2478 | 0.4403 | 0.033* | |
C4 | 0.02100 (12) | 0.20572 (8) | 0.55295 (9) | 0.0267 (3) | |
C5 | 0.10980 (12) | 0.17641 (8) | 0.70169 (9) | 0.0299 (3) | |
C6 | 0.15065 (14) | 0.19551 (9) | 0.79455 (10) | 0.0412 (4) | |
H6 | 0.1456 | 0.2410 | 0.8118 | 0.049* | |
C7 | 0.19740 (15) | 0.14740 (10) | 0.85869 (11) | 0.0467 (5) | |
H7 | 0.2221 | 0.1599 | 0.9201 | 0.056* | |
C8 | 0.20864 (15) | 0.07971 (10) | 0.83350 (11) | 0.0482 (5) | |
H8 | 0.2426 | 0.0476 | 0.8782 | 0.058* | |
C9 | 0.17070 (14) | 0.05958 (9) | 0.74423 (11) | 0.0430 (4) | |
H9 | 0.1795 | 0.0142 | 0.7281 | 0.052* | |
C10 | 0.11820 (13) | 0.10795 (8) | 0.67679 (10) | 0.0310 (4) | |
C11 | 0.02421 (12) | 0.13436 (8) | 0.52876 (9) | 0.0278 (3) | |
C12 | −0.14430 (13) | 0.11813 (7) | 0.39499 (10) | 0.0295 (3) | |
C13 | −0.22002 (14) | 0.11864 (9) | 0.44837 (11) | 0.0399 (4) | |
H13 | −0.1918 | 0.1180 | 0.5118 | 0.048* | |
C14 | −0.33859 (15) | 0.12013 (10) | 0.40724 (13) | 0.0529 (5) | |
H14 | −0.3896 | 0.1213 | 0.4434 | 0.064* | |
C15 | −0.38114 (16) | 0.11984 (10) | 0.31384 (13) | 0.0527 (5) | |
H15 | −0.4607 | 0.1196 | 0.2867 | 0.063* | |
C16 | −0.30551 (16) | 0.11984 (9) | 0.26043 (11) | 0.0463 (5) | |
H16 | −0.3343 | 0.1200 | 0.1970 | 0.056* | |
C17 | −0.18744 (15) | 0.11955 (8) | 0.30003 (10) | 0.0369 (4) | |
H17 | −0.1368 | 0.1203 | 0.2635 | 0.044* | |
C18 | 0.14618 (14) | 0.07099 (8) | 0.40332 (10) | 0.0336 (4) | |
C19 | 0.20182 (14) | 0.01078 (8) | 0.37266 (10) | 0.0325 (4) | |
C20 | 0.32110 (15) | 0.00497 (9) | 0.40344 (12) | 0.0454 (4) | |
H20 | 0.3639 | 0.0382 | 0.4424 | 0.055* | |
C21 | 0.37670 (17) | −0.04982 (11) | 0.37664 (13) | 0.0565 (5) | |
H21 | 0.4569 | −0.0536 | 0.3978 | 0.068* | |
C22 | 0.31412 (18) | −0.09881 (11) | 0.31888 (14) | 0.0588 (5) | |
H22 | 0.3518 | −0.1360 | 0.3015 | 0.071* | |
C23 | 0.19607 (18) | −0.09299 (10) | 0.28676 (13) | 0.0553 (5) | |
H23 | 0.1539 | −0.1260 | 0.2472 | 0.066* | |
C24 | 0.13965 (15) | −0.03813 (9) | 0.31305 (11) | 0.0409 (4) | |
H24 | 0.0597 | −0.0341 | 0.2906 | 0.049* | |
C25 | 0.01238 (13) | 0.28786 (8) | 0.32437 (10) | 0.0320 (4) | |
C26 | −0.03921 (14) | 0.35066 (9) | 0.29610 (11) | 0.0416 (4) | |
H26 | −0.0372 | 0.3850 | 0.3390 | 0.050* | |
C27 | −0.09401 (15) | 0.36282 (11) | 0.20433 (12) | 0.0502 (5) | |
H27 | −0.1286 | 0.4052 | 0.1862 | 0.060* | |
C28 | −0.09737 (16) | 0.31247 (12) | 0.14017 (12) | 0.0543 (5) | |
H28 | −0.1353 | 0.3204 | 0.0789 | 0.065* | |
C29 | −0.04462 (17) | 0.25073 (11) | 0.16706 (12) | 0.0561 (5) | |
H29 | −0.0458 | 0.2168 | 0.1237 | 0.067* | |
C30 | 0.01064 (15) | 0.23837 (9) | 0.25863 (11) | 0.0437 (4) | |
H30 | 0.0469 | 0.1964 | 0.2760 | 0.052* | |
C31 | 0.24876 (14) | 0.35178 (9) | 0.47640 (11) | 0.0392 (4) | |
C32 | 0.30152 (18) | 0.40906 (10) | 0.52508 (15) | 0.0610 (6) | |
H32 | 0.2604 | 0.4363 | 0.5555 | 0.073* | |
C33 | 0.4142 (2) | 0.42592 (13) | 0.52862 (17) | 0.0765 (7) | |
H33 | 0.4485 | 0.4643 | 0.5616 | 0.092* | |
C34 | 0.47581 (19) | 0.38669 (14) | 0.48410 (16) | 0.0713 (7) | |
H34 | 0.5516 | 0.3986 | 0.4865 | 0.086* | |
C35 | 0.42580 (17) | 0.32967 (13) | 0.43584 (13) | 0.0617 (6) | |
H35 | 0.4681 | 0.3028 | 0.4060 | 0.074* | |
C36 | 0.31229 (15) | 0.31201 (10) | 0.43149 (11) | 0.0485 (5) | |
H36 | 0.2787 | 0.2735 | 0.3985 | 0.058* | |
C37 | −0.09873 (14) | 0.35058 (9) | 0.57148 (10) | 0.0412 (4) | |
C38 | −0.17521 (16) | 0.30522 (11) | 0.59395 (11) | 0.0528 (5) | |
H38 | −0.1776 | 0.2596 | 0.5754 | 0.063* | |
C39 | −0.24821 (19) | 0.32803 (16) | 0.64427 (14) | 0.0816 (8) | |
H39 | −0.2991 | 0.2972 | 0.6596 | 0.098* | |
C40 | −0.2468 (2) | 0.3944 (2) | 0.67158 (17) | 0.1044 (12) | |
H40 | −0.2959 | 0.4090 | 0.7056 | 0.125* | |
C41 | −0.1725 (2) | 0.43964 (16) | 0.64864 (17) | 0.0931 (10) | |
H41 | −0.1718 | 0.4852 | 0.6671 | 0.112* | |
C42 | −0.09776 (17) | 0.41894 (11) | 0.59825 (13) | 0.0621 (6) | |
H42 | −0.0480 | 0.4503 | 0.5827 | 0.075* | |
N1 | −0.02553 (12) | 0.32888 (7) | 0.51901 (8) | 0.0360 (3) | |
N2 | 0.07573 (12) | 0.36378 (7) | 0.52524 (8) | 0.0365 (3) | |
N3 | 0.06255 (10) | 0.22567 (6) | 0.63778 (8) | 0.0305 (3) | |
N4 | 0.07247 (10) | 0.08697 (6) | 0.58766 (8) | 0.0322 (3) | |
N5 | −0.02142 (10) | 0.11631 (6) | 0.43538 (8) | 0.0301 (3) | |
N6 | 0.03408 (11) | 0.06146 (6) | 0.40476 (8) | 0.0315 (3) | |
H6N | 0.0090 | 0.0199 | 0.4130 | 0.038* | |
O3 | 0.19716 (10) | 0.12528 (6) | 0.42520 (9) | 0.0483 (3) | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
C1 | 0.0384 (9) | 0.0283 (8) | 0.0266 (7) | −0.0008 (7) | 0.0065 (6) | 0.0005 (6) |
C2 | 0.0350 (8) | 0.0305 (9) | 0.0258 (7) | 0.0031 (7) | 0.0120 (6) | 0.0010 (6) |
C3 | 0.0316 (8) | 0.0283 (8) | 0.0227 (7) | 0.0024 (6) | 0.0080 (6) | −0.0022 (6) |
C4 | 0.0265 (8) | 0.0307 (8) | 0.0243 (7) | 0.0003 (6) | 0.0092 (6) | 0.0001 (6) |
C5 | 0.0289 (8) | 0.0351 (9) | 0.0246 (7) | −0.0037 (7) | 0.0056 (6) | 0.0023 (6) |
C6 | 0.0477 (10) | 0.0451 (10) | 0.0278 (8) | −0.0042 (8) | 0.0055 (7) | −0.0024 (7) |
C7 | 0.0504 (11) | 0.0584 (13) | 0.0251 (8) | −0.0131 (9) | 0.0003 (7) | 0.0044 (8) |
C8 | 0.0462 (11) | 0.0504 (12) | 0.0384 (9) | −0.0104 (9) | −0.0042 (8) | 0.0183 (8) |
C9 | 0.0456 (10) | 0.0337 (10) | 0.0415 (9) | −0.0068 (8) | −0.0019 (8) | 0.0072 (7) |
C10 | 0.0283 (8) | 0.0335 (9) | 0.0280 (8) | −0.0065 (7) | 0.0025 (6) | 0.0024 (6) |
C11 | 0.0257 (8) | 0.0323 (9) | 0.0247 (7) | −0.0026 (6) | 0.0056 (6) | −0.0019 (6) |
C12 | 0.0321 (8) | 0.0243 (8) | 0.0289 (7) | −0.0007 (6) | 0.0031 (6) | 0.0003 (6) |
C13 | 0.0368 (10) | 0.0503 (11) | 0.0298 (8) | −0.0034 (8) | 0.0046 (7) | 0.0070 (7) |
C14 | 0.0336 (10) | 0.0737 (14) | 0.0501 (11) | −0.0021 (9) | 0.0093 (8) | 0.0127 (10) |
C15 | 0.0355 (10) | 0.0604 (13) | 0.0514 (11) | 0.0016 (9) | −0.0057 (8) | 0.0078 (9) |
C16 | 0.0513 (11) | 0.0452 (11) | 0.0317 (9) | 0.0052 (9) | −0.0066 (8) | 0.0000 (8) |
C17 | 0.0449 (10) | 0.0352 (9) | 0.0271 (8) | 0.0021 (7) | 0.0044 (7) | −0.0008 (7) |
C18 | 0.0358 (9) | 0.0328 (9) | 0.0300 (8) | −0.0011 (7) | 0.0055 (6) | −0.0008 (7) |
C19 | 0.0385 (9) | 0.0339 (9) | 0.0263 (7) | 0.0015 (7) | 0.0109 (6) | 0.0008 (6) |
C20 | 0.0406 (10) | 0.0531 (12) | 0.0404 (9) | 0.0029 (9) | 0.0077 (8) | −0.0092 (8) |
C21 | 0.0453 (11) | 0.0694 (14) | 0.0545 (11) | 0.0153 (10) | 0.0134 (9) | −0.0075 (10) |
C22 | 0.0640 (14) | 0.0554 (13) | 0.0649 (13) | 0.0130 (11) | 0.0310 (11) | −0.0118 (10) |
C23 | 0.0609 (13) | 0.0563 (13) | 0.0550 (11) | −0.0055 (10) | 0.0268 (10) | −0.0256 (10) |
C24 | 0.0436 (10) | 0.0463 (11) | 0.0359 (9) | −0.0039 (8) | 0.0162 (7) | −0.0084 (8) |
C25 | 0.0326 (8) | 0.0401 (10) | 0.0255 (7) | −0.0034 (7) | 0.0118 (6) | 0.0011 (7) |
C26 | 0.0435 (10) | 0.0490 (11) | 0.0355 (9) | 0.0079 (8) | 0.0165 (7) | 0.0055 (8) |
C27 | 0.0403 (10) | 0.0705 (13) | 0.0422 (10) | 0.0101 (9) | 0.0155 (8) | 0.0204 (9) |
C28 | 0.0460 (11) | 0.0864 (16) | 0.0278 (9) | −0.0107 (11) | 0.0058 (8) | 0.0084 (10) |
C29 | 0.0724 (14) | 0.0671 (14) | 0.0277 (9) | −0.0174 (11) | 0.0118 (9) | −0.0082 (9) |
C30 | 0.0582 (11) | 0.0427 (10) | 0.0316 (9) | −0.0071 (9) | 0.0149 (8) | −0.0038 (7) |
C31 | 0.0411 (10) | 0.0404 (10) | 0.0326 (8) | −0.0055 (8) | 0.0045 (7) | 0.0098 (7) |
C32 | 0.0616 (13) | 0.0434 (12) | 0.0770 (14) | −0.0163 (10) | 0.0174 (11) | −0.0011 (10) |
C33 | 0.0644 (16) | 0.0673 (16) | 0.0924 (18) | −0.0295 (13) | 0.0124 (13) | 0.0041 (13) |
C34 | 0.0465 (13) | 0.0953 (19) | 0.0690 (14) | −0.0217 (13) | 0.0107 (11) | 0.0265 (13) |
C35 | 0.0463 (12) | 0.0937 (17) | 0.0469 (11) | −0.0061 (12) | 0.0158 (9) | 0.0149 (11) |
C36 | 0.0431 (10) | 0.0685 (13) | 0.0335 (9) | −0.0076 (9) | 0.0099 (8) | 0.0054 (9) |
C37 | 0.0419 (10) | 0.0559 (11) | 0.0213 (7) | 0.0202 (9) | 0.0015 (7) | −0.0044 (7) |
C38 | 0.0468 (11) | 0.0794 (15) | 0.0353 (9) | 0.0193 (10) | 0.0163 (8) | 0.0075 (9) |
C39 | 0.0543 (13) | 0.152 (3) | 0.0448 (12) | 0.0297 (15) | 0.0233 (10) | −0.0010 (14) |
C40 | 0.0635 (17) | 0.186 (4) | 0.0622 (16) | 0.045 (2) | 0.0141 (13) | −0.0477 (19) |
C41 | 0.0745 (18) | 0.121 (2) | 0.0693 (16) | 0.0436 (17) | −0.0047 (13) | −0.0553 (16) |
C42 | 0.0590 (13) | 0.0691 (14) | 0.0478 (11) | 0.0231 (11) | −0.0027 (9) | −0.0262 (10) |
N1 | 0.0459 (8) | 0.0333 (8) | 0.0305 (7) | 0.0053 (6) | 0.0134 (6) | −0.0026 (6) |
N2 | 0.0450 (8) | 0.0322 (8) | 0.0295 (7) | −0.0006 (6) | 0.0057 (6) | −0.0005 (6) |
N3 | 0.0335 (7) | 0.0341 (8) | 0.0233 (6) | 0.0004 (6) | 0.0065 (5) | −0.0008 (5) |
N4 | 0.0326 (7) | 0.0299 (7) | 0.0308 (7) | −0.0031 (6) | 0.0035 (5) | 0.0007 (6) |
N5 | 0.0322 (7) | 0.0304 (7) | 0.0256 (6) | 0.0025 (6) | 0.0044 (5) | −0.0066 (5) |
N6 | 0.0371 (7) | 0.0268 (7) | 0.0308 (7) | −0.0005 (6) | 0.0097 (5) | −0.0047 (5) |
O3 | 0.0401 (7) | 0.0346 (7) | 0.0697 (8) | −0.0045 (6) | 0.0146 (6) | −0.0104 (6) |
Geometric parameters (Å, º) top
C1—N2 | 1.2990 (19) | C21—C22 | 1.372 (3) |
C1—C31 | 1.450 (2) | C21—H21 | 0.9300 |
C1—C2 | 1.506 (2) | C22—C23 | 1.371 (3) |
C2—C25 | 1.5235 (19) | C22—H22 | 0.9300 |
C2—C3 | 1.555 (2) | C23—C24 | 1.382 (2) |
C2—H2 | 0.9784 | C23—H23 | 0.9300 |
C3—N1 | 1.4655 (19) | C24—H24 | 0.9300 |
C3—C4 | 1.5211 (19) | C25—C30 | 1.384 (2) |
C3—H3 | 0.9858 | C25—C26 | 1.384 (2) |
C4—N3 | 1.3071 (17) | C26—C27 | 1.389 (2) |
C4—C11 | 1.440 (2) | C26—H26 | 0.9300 |
C5—N3 | 1.3717 (18) | C27—C28 | 1.376 (3) |
C5—C10 | 1.397 (2) | C27—H27 | 0.9300 |
C5—C6 | 1.411 (2) | C28—C29 | 1.368 (3) |
C6—C7 | 1.357 (2) | C28—H28 | 0.9300 |
C6—H6 | 0.9300 | C29—C30 | 1.388 (2) |
C7—C8 | 1.389 (3) | C29—H29 | 0.9300 |
C7—H7 | 0.9300 | C30—H30 | 0.9300 |
C8—C9 | 1.365 (2) | C31—C32 | 1.391 (2) |
C8—H8 | 0.9300 | C31—C36 | 1.392 (2) |
C9—C10 | 1.407 (2) | C32—C33 | 1.379 (3) |
C9—H9 | 0.9300 | C32—H32 | 0.9300 |
C10—N4 | 1.3764 (18) | C33—C34 | 1.366 (3) |
C11—N4 | 1.3049 (18) | C33—H33 | 0.9300 |
C11—N5 | 1.4178 (17) | C34—C35 | 1.374 (3) |
C12—C13 | 1.377 (2) | C34—H34 | 0.9300 |
C12—C17 | 1.393 (2) | C35—C36 | 1.390 (3) |
C12—N5 | 1.4340 (19) | C35—H35 | 0.9300 |
C13—C14 | 1.389 (2) | C36—H36 | 0.9300 |
C13—H13 | 0.9300 | C37—C38 | 1.384 (3) |
C14—C15 | 1.370 (2) | C37—C42 | 1.391 (3) |
C14—H14 | 0.9300 | C37—N1 | 1.406 (2) |
C15—C16 | 1.376 (3) | C38—C39 | 1.387 (3) |
C15—H15 | 0.9300 | C38—H38 | 0.9300 |
C16—C17 | 1.379 (2) | C39—C40 | 1.357 (4) |
C16—H16 | 0.9300 | C39—H39 | 0.9300 |
C17—H17 | 0.9300 | C40—C41 | 1.366 (4) |
C18—O3 | 1.2207 (18) | C40—H40 | 0.9300 |
C18—N6 | 1.365 (2) | C41—C42 | 1.391 (3) |
C18—C19 | 1.487 (2) | C41—H41 | 0.9300 |
C19—C24 | 1.383 (2) | C42—H42 | 0.9300 |
C19—C20 | 1.384 (2) | N1—N2 | 1.3735 (18) |
C20—C21 | 1.379 (2) | N5—N6 | 1.4047 (16) |
C20—H20 | 0.9300 | N6—H6N | 0.8852 |
| | | |
N2—C1—C31 | 121.91 (14) | C22—C23—C24 | 120.17 (17) |
N2—C1—C2 | 113.08 (13) | C22—C23—H23 | 119.9 |
C31—C1—C2 | 124.98 (14) | C24—C23—H23 | 119.9 |
C1—C2—C25 | 112.28 (12) | C23—C24—C19 | 120.18 (16) |
C1—C2—C3 | 99.59 (11) | C23—C24—H24 | 119.9 |
C25—C2—C3 | 113.38 (12) | C19—C24—H24 | 119.9 |
C1—C2—H2 | 112.3 | C30—C25—C26 | 118.31 (15) |
C25—C2—H2 | 109.5 | C30—C25—C2 | 119.60 (15) |
C3—C2—H2 | 109.5 | C26—C25—C2 | 122.06 (14) |
N1—C3—C4 | 112.51 (11) | C25—C26—C27 | 120.64 (16) |
N1—C3—C2 | 100.88 (11) | C25—C26—H26 | 119.7 |
C4—C3—C2 | 109.70 (11) | C27—C26—H26 | 119.7 |
N1—C3—H3 | 110.5 | C28—C27—C26 | 120.27 (18) |
C4—C3—H3 | 110.6 | C28—C27—H27 | 119.9 |
C2—C3—H3 | 112.3 | C26—C27—H27 | 119.9 |
N3—C4—C11 | 120.59 (13) | C29—C28—C27 | 119.59 (16) |
N3—C4—C3 | 118.25 (13) | C29—C28—H28 | 120.2 |
C11—C4—C3 | 121.03 (12) | C27—C28—H28 | 120.2 |
N3—C5—C10 | 121.45 (13) | C28—C29—C30 | 120.39 (18) |
N3—C5—C6 | 119.09 (14) | C28—C29—H29 | 119.8 |
C10—C5—C6 | 119.45 (14) | C30—C29—H29 | 119.8 |
C7—C6—C5 | 119.86 (16) | C25—C30—C29 | 120.76 (18) |
C7—C6—H6 | 120.1 | C25—C30—H30 | 119.6 |
C5—C6—H6 | 120.1 | C29—C30—H30 | 119.6 |
C6—C7—C8 | 120.60 (15) | C32—C31—C36 | 118.45 (17) |
C6—C7—H7 | 119.7 | C32—C31—C1 | 120.90 (17) |
C8—C7—H7 | 119.7 | C36—C31—C1 | 120.55 (15) |
C9—C8—C7 | 121.02 (16) | C33—C32—C31 | 120.6 (2) |
C9—C8—H8 | 119.5 | C33—C32—H32 | 119.7 |
C7—C8—H8 | 119.5 | C31—C32—H32 | 119.7 |
C8—C9—C10 | 119.49 (16) | C34—C33—C32 | 120.5 (2) |
C8—C9—H9 | 120.3 | C34—C33—H33 | 119.7 |
C10—C9—H9 | 120.3 | C32—C33—H33 | 119.7 |
N4—C10—C5 | 120.74 (13) | C33—C34—C35 | 120.0 (2) |
N4—C10—C9 | 119.73 (14) | C33—C34—H34 | 120.0 |
C5—C10—C9 | 119.50 (14) | C35—C34—H34 | 120.0 |
N4—C11—N5 | 119.19 (13) | C34—C35—C36 | 120.2 (2) |
N4—C11—C4 | 123.01 (13) | C34—C35—H35 | 119.9 |
N5—C11—C4 | 117.69 (12) | C36—C35—H35 | 119.9 |
C13—C12—C17 | 119.61 (14) | C35—C36—C31 | 120.19 (19) |
C13—C12—N5 | 121.14 (12) | C35—C36—H36 | 119.9 |
C17—C12—N5 | 119.24 (14) | C31—C36—H36 | 119.9 |
C12—C13—C14 | 119.81 (15) | C38—C37—C42 | 119.39 (17) |
C12—C13—H13 | 120.1 | C38—C37—N1 | 120.72 (16) |
C14—C13—H13 | 120.1 | C42—C37—N1 | 119.85 (18) |
C15—C14—C13 | 120.61 (18) | C37—C38—C39 | 119.8 (2) |
C15—C14—H14 | 119.7 | C37—C38—H38 | 120.1 |
C13—C14—H14 | 119.7 | C39—C38—H38 | 120.1 |
C14—C15—C16 | 119.61 (17) | C40—C39—C38 | 121.2 (3) |
C14—C15—H15 | 120.2 | C40—C39—H39 | 119.4 |
C16—C15—H15 | 120.2 | C38—C39—H39 | 119.4 |
C15—C16—C17 | 120.62 (15) | C39—C40—C41 | 119.3 (2) |
C15—C16—H16 | 119.7 | C39—C40—H40 | 120.4 |
C17—C16—H16 | 119.7 | C41—C40—H40 | 120.4 |
C16—C17—C12 | 119.71 (16) | C40—C41—C42 | 121.4 (3) |
C16—C17—H17 | 120.1 | C40—C41—H41 | 119.3 |
C12—C17—H17 | 120.1 | C42—C41—H41 | 119.3 |
O3—C18—N6 | 122.41 (14) | C37—C42—C41 | 118.9 (2) |
O3—C18—C19 | 122.20 (15) | C37—C42—H42 | 120.5 |
N6—C18—C19 | 115.39 (14) | C41—C42—H42 | 120.5 |
C24—C19—C20 | 119.13 (15) | N2—N1—C37 | 119.55 (13) |
C24—C19—C18 | 122.71 (14) | N2—N1—C3 | 111.11 (12) |
C20—C19—C18 | 118.14 (14) | C37—N1—C3 | 126.24 (14) |
C21—C20—C19 | 120.29 (16) | C1—N2—N1 | 108.52 (12) |
C21—C20—H20 | 119.9 | C4—N3—C5 | 117.51 (13) |
C19—C20—H20 | 119.9 | C11—N4—C10 | 116.54 (13) |
C22—C21—C20 | 120.18 (18) | N6—N5—C11 | 115.65 (11) |
C22—C21—H21 | 119.9 | N6—N5—C12 | 113.80 (11) |
C20—C21—H21 | 119.9 | C11—N5—C12 | 119.36 (12) |
C21—C22—C23 | 120.03 (18) | C18—N6—N5 | 117.56 (12) |
C21—C22—H22 | 120.0 | C18—N6—H6N | 120.2 |
C23—C22—H22 | 120.0 | N5—N6—H6N | 115.9 |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O3 | 0.98 | 2.28 | 3.2425 (19) | 169 |
N6—H6N···N4i | 0.89 | 2.30 | 3.1754 (18) | 172 |
C16—H16···N2ii | 0.93 | 2.56 | 3.4799 (19) | 172 |
Symmetry codes: (i) −x, −y, −z+1; (ii) x−1/2, −y+1/2, z−1/2. |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O3 | 0.98 | 2.28 | 3.2425 (19) | 168.9 |
N6—H6N···N4i | 0.89 | 2.30 | 3.1754 (18) | 171.5 |
C16—H16···N2ii | 0.93 | 2.56 | 3.4799 (19) | 172.4 |
Symmetry codes: (i) −x, −y, −z+1; (ii) x−1/2, −y+1/2, z−1/2. |
Quinoxalinone and its derivatives are used in organic synthesis for building natural and designed synthetic compounds and have been frequently utilized as suitable skeletons for the design of biologically active compounds. For instance, they are known for their potent activity as anti-inflammatory agents (El-Sabbagh et al., 2009), inhibitors of the kinase protein (Bemis et al., 2005), anti-cancer agents (Corona et al., 2008), anti-microbial agents (Ghadage & Shirote, 2011) and are particularly effective in the treatment of diabetes and its complications (Yang et al., 2012). Our research group targeted at the development of novel quinoxalinone derivatives such as the title compound that may prove to be better agents in terms of efficacy and safety.
The molecule of the title compound displays a five membered pyrazol-5-yl ring (N1/N2/C1–C3) connected to three phenyl rings and to a quinoxalin-3-yl ring system attached to a phenylbenzohydrazide group (Fig. 1). The pyrazole ring shows an envelope conformation as indicated by the total puckering amplitude QT = 0.2552 (16) Å and spherical polar angle ϕ2 = 135.1 (4)°. The C3 flap atom is displaced by 0.4035 (14) Å from the mean plane through the other four atoms. The fused quinoxalin-3-yl ring system (N3/N4/C4–C11) is approximately planar with a maximum deviation from the mean plane of 0.0455 (15) Å at C11. The dihedral angle between the two phenyl rings (C12–C17 and C14–C24) of the phenylbenzohydrazide moiety is 58.27 (9)°. The mean plane through the five-membered pyrazole ring is nearly perpendicular to the quinoxaline ring system and to the C25–C30 phenyl ring as indicated by the dihedral angles of 82.58 (7)° and 87.29 (9)°, respectively. It makes also dihedral angles of 14.38 (9)° and 17.82 (9)° with the attached C31–C36 and C37–C42 phenyl rings, respectively. An intramolecular C—H···O hydrogen bond is observed (Table 1). In the crystal, centrosymmetrically related molecules are linked by pairs of N—H···N hydrogen bonds (Table 1) into dimers. The dimers are further linked into chains parallel to the b axis by C—H···N hydrogen bonds.