organic compounds
E)-N-{[3-methyl-1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazol-4-yl]methylidene}hydroxylamine
of (aDepartment of Chemistry, Tulane University, New Orleans, LA 70118, USA, bChemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England, cChemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt, dDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, eDepartment of Chemistry, Faculty of Science, Assiut University, 71515 Assiut, Egypt, and fKirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq
*Correspondence e-mail: shaabankamel@yahoo.com
The title compound, C15H14N4O, crystallizes with two molecules in the with similar conformations (r.m.s. overlay fit for the 20 non-H atoms = 0.175 Å). In the first molecule, the dihedral angles between the planes of the central pyrazole ring and the pendant phenyl and pyrrole rings are 42.69 (8) and 51.88 (6)°, respectively, with corresponding angles of 54.49 (7) and 49.61 (9)°, respectively, in the second molecule. In the crystal, the two molecules, together with their inversion-symmetry counterparts, are linked into tetramers by O—H⋯N hydrogen bonds. The tetramers form layers parallel to (211) through pairwise C—H⋯π interactions.
Keywords: crystal structure; pyrrole ring; hydrogen bonding; hydroxylamine.
CCDC reference: 1031015
1. Related literature
For use of pyrazoles in synthesis of polyfunctionally substituted heterocycles, see: Elnagdi et al. (1987); Quiroga et al. (2007, 2008a,b); Aly et al. (1994). For pharmaceutical properties of pyrazole-containing compounds, see: Bazgir et al. (2008); Dias et al. (1994); El-Kashef et al. (2000); El-Emary et al. (2002).
2. Experimental
2.1. Crystal data
|
2.3. Refinement
|
Data collection: APEX2 (Bruker, 2014); cell SAINT (Bruker, 2014); data reduction: SAINT; program(s) used to solve structure: SHELXT (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2012); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supporting information
CCDC reference: 1031015
10.1107/S1600536814023514/hb7307sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814023514/hb7307Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814023514/hb7307Isup3.cml
A mixture of 760 mg (3 mmol) 3-methyl-1-phenyl-5-(1H-pyrrol-1-yl)-4,5-dihydro-1H-pyrazole-4-carbaldehyde and 208.5 mg (3 mmol) of hydroxylamine hydrochloride in 15 ml pyridine was heated under reflux for 3 h. After cooling, the reaction mixture was poured into cold water. The resulting solid product was filtered, washed with water, dried under vacuum and crystallized from dioxane to give colourless plates Yield 76%, m.p. 463–465 K.
H-atoms attached to carbon atoms were placed in calculated positions (C—H = 0.95 - 0.98 Å) while those attached to oxygen atoms were placed in locations derived from a difference map and their parameters adjusted to give O—H = 0.84 Å. All were included as riding contributions with isotropic displacement parameters 1.2 - 1.5 times those of the attached atoms.
Data collection: APEX2 (Bruker, 2014); cell
SAINT (Bruker, 2014); data reduction: SAINT (Bruker, 2014); program(s) used to solve structure: SHELXT (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2012); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).The asymmetric unit of the title compound with 50% probability ellipsoids. Packing of three H-bonded tetramers viewed down the a axis. O—H···N hydrogen bonds are shown by dotted lines. Elevation view of the layers of H-bonded tetramers. |
C15H14N4O | Z = 4 |
Mr = 266.30 | F(000) = 560 |
Triclinic, P1 | Dx = 1.279 Mg m−3 |
a = 9.1497 (2) Å | Cu Kα radiation, λ = 1.54178 Å |
b = 12.3932 (3) Å | Cell parameters from 8765 reflections |
c = 12.7294 (3) Å | θ = 3.5–72.2° |
α = 87.4070 (11)° | µ = 0.68 mm−1 |
β = 82.6740 (12)° | T = 150 K |
γ = 75.0190 (12)° | Plate, colourless |
V = 1382.88 (6) Å3 | 0.22 × 0.15 × 0.05 mm |
Bruker D8 VENTURE PHOTON 100 CMOS diffractometer | 5370 independent reflections |
Radiation source: INCOATEC IµS micro-focus source | 4088 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.036 |
Detector resolution: 10.4167 pixels mm-1 | θmax = 72.4°, θmin = 3.5° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (SADABS; Bruker, 2014) | k = −15→15 |
Tmin = 0.92, Tmax = 0.97 | l = −15→15 |
15570 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)] = 0.042 | Hydrogen site location: mixed |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0468P)2 + 0.401P] where P = (Fo2 + 2Fc2)/3 |
5370 reflections | (Δ/σ)max = 0.001 |
363 parameters | Δρmax = 0.32 e Å−3 |
0 restraints | Δρmin = −0.18 e Å−3 |
C15H14N4O | γ = 75.0190 (12)° |
Mr = 266.30 | V = 1382.88 (6) Å3 |
Triclinic, P1 | Z = 4 |
a = 9.1497 (2) Å | Cu Kα radiation |
b = 12.3932 (3) Å | µ = 0.68 mm−1 |
c = 12.7294 (3) Å | T = 150 K |
α = 87.4070 (11)° | 0.22 × 0.15 × 0.05 mm |
β = 82.6740 (12)° |
Bruker D8 VENTURE PHOTON 100 CMOS diffractometer | 5370 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2014) | 4088 reflections with I > 2σ(I) |
Tmin = 0.92, Tmax = 0.97 | Rint = 0.036 |
15570 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.32 e Å−3 |
5370 reflections | Δρmin = −0.18 e Å−3 |
363 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. H-atoms attached to carbon were placed in calculated positions (C—H = 0.95 - 0.98 Å) while those attached to oxygen were placed in locations derived from a difference map and their parameters adjusted to give O—H = 0.84 Å. All were included as riding contributions with isotropic displacement parameters 1.2 - 1.5 times those of the attached atoms. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.01620 (14) | −0.14968 (11) | 1.23494 (9) | 0.0350 (3) | |
H1A | 0.0512 | −0.2083 | 1.2691 | 0.042* | |
N1 | 0.32895 (16) | 0.00206 (11) | 0.85512 (11) | 0.0253 (3) | |
N2 | 0.33432 (17) | −0.10531 (12) | 0.83004 (11) | 0.0283 (3) | |
N3 | 0.23015 (16) | 0.13164 (11) | 0.99916 (11) | 0.0265 (3) | |
N4 | 0.11882 (17) | −0.16601 (13) | 1.14130 (11) | 0.0305 (3) | |
N5 | 0.86241 (16) | 0.34350 (11) | 0.53889 (10) | 0.0260 (3) | |
C1 | 0.40366 (18) | 0.06699 (13) | 0.78205 (13) | 0.0252 (3) | |
C2 | 0.39036 (19) | 0.06265 (14) | 0.67514 (13) | 0.0281 (4) | |
H2 | 0.3287 | 0.0198 | 0.6516 | 0.034* | |
C3 | 0.4681 (2) | 0.12150 (15) | 0.60299 (14) | 0.0318 (4) | |
H3 | 0.4610 | 0.1181 | 0.5295 | 0.038* | |
C4 | 0.5558 (2) | 0.18502 (15) | 0.63761 (15) | 0.0332 (4) | |
H4 | 0.6089 | 0.2251 | 0.5878 | 0.040* | |
C5 | 0.5667 (2) | 0.19049 (15) | 0.74439 (15) | 0.0323 (4) | |
H5 | 0.6256 | 0.2356 | 0.7678 | 0.039* | |
C6 | 0.49199 (19) | 0.13047 (14) | 0.81776 (14) | 0.0294 (4) | |
H6 | 0.5011 | 0.1328 | 0.8911 | 0.035* | |
C7 | 0.25257 (19) | 0.02755 (14) | 0.95310 (13) | 0.0248 (3) | |
C8 | 0.20937 (19) | −0.06590 (14) | 0.99446 (13) | 0.0256 (3) | |
C9 | 0.2641 (2) | −0.14714 (14) | 0.91388 (13) | 0.0282 (4) | |
C10 | 0.2486 (3) | −0.26404 (15) | 0.91273 (16) | 0.0423 (5) | |
H10A | 0.2917 | −0.2969 | 0.8434 | 0.063* | |
H10B | 0.1406 | −0.2636 | 0.9260 | 0.063* | |
H10C | 0.3034 | −0.3084 | 0.9680 | 0.063* | |
C11 | 0.2741 (3) | 0.14651 (16) | 1.09638 (15) | 0.0413 (5) | |
H11 | 0.3152 | 0.0889 | 1.1443 | 0.050* | |
C12 | 0.2485 (3) | 0.25693 (18) | 1.11112 (17) | 0.0558 (6) | |
H12 | 0.2681 | 0.2911 | 1.1713 | 0.067* | |
C13 | 0.1869 (3) | 0.31322 (15) | 1.02105 (16) | 0.0416 (5) | |
H13 | 0.1580 | 0.3918 | 1.0101 | 0.050* | |
C14 | 0.1765 (2) | 0.23523 (14) | 0.95337 (14) | 0.0295 (4) | |
H14 | 0.1392 | 0.2492 | 0.8865 | 0.035* | |
C15 | 0.1185 (2) | −0.07129 (14) | 1.09604 (13) | 0.0273 (4) | |
H15 | 0.0587 | −0.0044 | 1.1291 | 0.033* | |
O2 | 0.49919 (16) | 0.78935 (10) | 0.64738 (10) | 0.0386 (3) | |
H2A | 0.4532 | 0.8172 | 0.7052 | 0.046* | |
N6 | 0.84165 (17) | 0.33808 (12) | 0.64741 (11) | 0.0284 (3) | |
N7 | 0.79776 (16) | 0.47398 (11) | 0.39594 (11) | 0.0261 (3) | |
N8 | 0.56651 (17) | 0.67789 (12) | 0.67161 (12) | 0.0315 (3) | |
C16 | 0.94172 (19) | 0.24537 (13) | 0.47988 (13) | 0.0257 (4) | |
C17 | 1.0867 (2) | 0.18970 (15) | 0.50007 (14) | 0.0334 (4) | |
H17 | 1.1349 | 0.2169 | 0.5513 | 0.040* | |
C18 | 1.1611 (2) | 0.09363 (17) | 0.44459 (15) | 0.0391 (5) | |
H18 | 1.2611 | 0.0546 | 0.4578 | 0.047* | |
C19 | 1.0912 (2) | 0.05402 (16) | 0.37017 (15) | 0.0362 (4) | |
H19 | 1.1428 | −0.0123 | 0.3327 | 0.043* | |
C20 | 0.9459 (2) | 0.11116 (16) | 0.35027 (14) | 0.0340 (4) | |
H20 | 0.8981 | 0.0843 | 0.2987 | 0.041* | |
C21 | 0.8700 (2) | 0.20730 (15) | 0.40525 (13) | 0.0302 (4) | |
H21 | 0.7702 | 0.2466 | 0.3919 | 0.036* | |
C22 | 0.78947 (19) | 0.44542 (14) | 0.50370 (13) | 0.0255 (3) | |
C23 | 0.7165 (2) | 0.50922 (14) | 0.59080 (13) | 0.0266 (4) | |
C24 | 0.7529 (2) | 0.43701 (14) | 0.67857 (13) | 0.0284 (4) | |
C25 | 0.7069 (2) | 0.45931 (16) | 0.79421 (14) | 0.0374 (4) | |
H25A | 0.7502 | 0.3924 | 0.8352 | 0.056* | |
H25B | 0.5955 | 0.4784 | 0.8089 | 0.056* | |
H25C | 0.7447 | 0.5216 | 0.8142 | 0.056* | |
C26 | 0.6762 (2) | 0.52578 (16) | 0.34263 (14) | 0.0352 (4) | |
H26 | 0.5721 | 0.5447 | 0.3718 | 0.042* | |
C27 | 0.7302 (2) | 0.54509 (17) | 0.24161 (15) | 0.0400 (5) | |
H27 | 0.6712 | 0.5800 | 0.1874 | 0.048* | |
C28 | 0.8895 (2) | 0.5042 (2) | 0.23135 (16) | 0.0507 (6) | |
H28 | 0.9576 | 0.5067 | 0.1689 | 0.061* | |
C29 | 0.9289 (2) | 0.46064 (19) | 0.32625 (16) | 0.0435 (5) | |
H29 | 1.0294 | 0.4268 | 0.3420 | 0.052* | |
C30 | 0.6353 (2) | 0.62612 (14) | 0.58742 (14) | 0.0304 (4) | |
H30 | 0.6330 | 0.6651 | 0.5214 | 0.036* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0406 (7) | 0.0345 (7) | 0.0262 (6) | −0.0060 (6) | 0.0012 (5) | 0.0040 (5) |
N1 | 0.0317 (8) | 0.0214 (7) | 0.0232 (7) | −0.0070 (6) | −0.0033 (6) | −0.0022 (5) |
N2 | 0.0361 (8) | 0.0216 (7) | 0.0272 (7) | −0.0071 (6) | −0.0033 (6) | −0.0031 (6) |
N3 | 0.0352 (8) | 0.0225 (7) | 0.0221 (7) | −0.0070 (6) | −0.0049 (6) | −0.0021 (5) |
N4 | 0.0335 (8) | 0.0375 (9) | 0.0211 (7) | −0.0105 (7) | −0.0022 (6) | −0.0008 (6) |
N5 | 0.0319 (8) | 0.0248 (7) | 0.0210 (7) | −0.0067 (6) | −0.0034 (6) | 0.0009 (5) |
C1 | 0.0248 (8) | 0.0224 (8) | 0.0262 (8) | −0.0032 (7) | −0.0008 (7) | 0.0002 (6) |
C2 | 0.0308 (9) | 0.0255 (9) | 0.0271 (9) | −0.0056 (7) | −0.0036 (7) | −0.0011 (7) |
C3 | 0.0325 (10) | 0.0320 (10) | 0.0266 (9) | −0.0020 (8) | −0.0007 (7) | 0.0019 (7) |
C4 | 0.0292 (9) | 0.0271 (9) | 0.0389 (10) | −0.0035 (7) | 0.0020 (8) | 0.0066 (8) |
C5 | 0.0253 (9) | 0.0273 (9) | 0.0446 (11) | −0.0074 (7) | −0.0051 (8) | 0.0026 (8) |
C6 | 0.0285 (9) | 0.0275 (9) | 0.0316 (9) | −0.0044 (7) | −0.0063 (7) | −0.0008 (7) |
C7 | 0.0286 (9) | 0.0231 (8) | 0.0221 (8) | −0.0038 (7) | −0.0059 (6) | −0.0010 (6) |
C8 | 0.0298 (9) | 0.0232 (8) | 0.0239 (8) | −0.0057 (7) | −0.0063 (7) | 0.0008 (6) |
C9 | 0.0351 (9) | 0.0237 (9) | 0.0260 (9) | −0.0076 (7) | −0.0045 (7) | 0.0001 (7) |
C10 | 0.0643 (14) | 0.0278 (10) | 0.0358 (11) | −0.0178 (9) | 0.0049 (9) | −0.0050 (8) |
C11 | 0.0660 (14) | 0.0312 (10) | 0.0289 (10) | −0.0105 (9) | −0.0182 (9) | −0.0006 (8) |
C12 | 0.100 (2) | 0.0328 (11) | 0.0399 (12) | −0.0157 (12) | −0.0292 (12) | −0.0059 (9) |
C13 | 0.0635 (14) | 0.0210 (9) | 0.0393 (11) | −0.0074 (9) | −0.0091 (9) | −0.0023 (8) |
C14 | 0.0363 (10) | 0.0240 (9) | 0.0266 (9) | −0.0051 (7) | −0.0037 (7) | 0.0013 (7) |
C15 | 0.0331 (9) | 0.0254 (9) | 0.0236 (8) | −0.0060 (7) | −0.0069 (7) | 0.0003 (7) |
O2 | 0.0537 (8) | 0.0263 (7) | 0.0283 (7) | −0.0002 (6) | 0.0026 (6) | −0.0024 (5) |
N6 | 0.0396 (8) | 0.0255 (7) | 0.0213 (7) | −0.0102 (6) | −0.0049 (6) | 0.0012 (6) |
N7 | 0.0287 (8) | 0.0253 (7) | 0.0227 (7) | −0.0046 (6) | −0.0028 (6) | 0.0021 (5) |
N8 | 0.0392 (9) | 0.0228 (7) | 0.0317 (8) | −0.0064 (6) | −0.0045 (6) | −0.0008 (6) |
C16 | 0.0295 (9) | 0.0224 (8) | 0.0238 (8) | −0.0054 (7) | −0.0012 (7) | 0.0010 (6) |
C17 | 0.0337 (10) | 0.0336 (10) | 0.0328 (10) | −0.0055 (8) | −0.0095 (8) | −0.0031 (8) |
C18 | 0.0331 (10) | 0.0384 (11) | 0.0403 (11) | 0.0039 (8) | −0.0095 (8) | −0.0042 (8) |
C19 | 0.0395 (11) | 0.0302 (10) | 0.0338 (10) | −0.0001 (8) | −0.0011 (8) | −0.0070 (8) |
C20 | 0.0373 (10) | 0.0365 (10) | 0.0281 (9) | −0.0086 (8) | −0.0033 (8) | −0.0079 (8) |
C21 | 0.0270 (9) | 0.0333 (10) | 0.0294 (9) | −0.0048 (8) | −0.0049 (7) | −0.0028 (7) |
C22 | 0.0273 (9) | 0.0241 (8) | 0.0249 (8) | −0.0067 (7) | −0.0033 (7) | 0.0021 (6) |
C23 | 0.0318 (9) | 0.0236 (8) | 0.0254 (8) | −0.0091 (7) | −0.0027 (7) | −0.0010 (7) |
C24 | 0.0377 (10) | 0.0235 (8) | 0.0255 (9) | −0.0108 (7) | −0.0037 (7) | −0.0010 (7) |
C25 | 0.0563 (13) | 0.0294 (10) | 0.0258 (9) | −0.0107 (9) | −0.0026 (8) | −0.0015 (7) |
C26 | 0.0284 (9) | 0.0405 (11) | 0.0315 (10) | −0.0001 (8) | −0.0042 (7) | 0.0047 (8) |
C27 | 0.0421 (11) | 0.0460 (12) | 0.0281 (10) | −0.0041 (9) | −0.0072 (8) | 0.0061 (8) |
C28 | 0.0393 (12) | 0.0726 (16) | 0.0317 (11) | −0.0056 (11) | 0.0043 (9) | 0.0150 (10) |
C29 | 0.0269 (10) | 0.0621 (14) | 0.0364 (11) | −0.0069 (9) | −0.0001 (8) | 0.0143 (9) |
C30 | 0.0385 (10) | 0.0261 (9) | 0.0256 (9) | −0.0068 (8) | −0.0029 (7) | −0.0004 (7) |
O1—N4 | 1.4078 (18) | C13—H13 | 0.9500 |
O1—H1A | 0.8403 | C14—H14 | 0.9500 |
N1—C7 | 1.358 (2) | C15—H15 | 0.9500 |
N1—N2 | 1.3695 (18) | O2—N8 | 1.3973 (18) |
N1—C1 | 1.426 (2) | O2—H2A | 0.8402 |
N2—C9 | 1.330 (2) | N6—C24 | 1.329 (2) |
N3—C14 | 1.381 (2) | N7—C29 | 1.376 (2) |
N3—C11 | 1.383 (2) | N7—C26 | 1.376 (2) |
N3—C7 | 1.397 (2) | N7—C22 | 1.399 (2) |
N4—C15 | 1.284 (2) | N8—C30 | 1.280 (2) |
N5—C22 | 1.353 (2) | C16—C17 | 1.378 (2) |
N5—N6 | 1.3713 (18) | C16—C21 | 1.384 (2) |
N5—C16 | 1.434 (2) | C17—C18 | 1.383 (3) |
C1—C2 | 1.386 (2) | C17—H17 | 0.9500 |
C1—C6 | 1.391 (2) | C18—C19 | 1.380 (3) |
C2—C3 | 1.387 (2) | C18—H18 | 0.9500 |
C2—H2 | 0.9500 | C19—C20 | 1.385 (3) |
C3—C4 | 1.380 (3) | C19—H19 | 0.9500 |
C3—H3 | 0.9500 | C20—C21 | 1.384 (2) |
C4—C5 | 1.382 (3) | C20—H20 | 0.9500 |
C4—H4 | 0.9500 | C21—H21 | 0.9500 |
C5—C6 | 1.389 (2) | C22—C23 | 1.385 (2) |
C5—H5 | 0.9500 | C23—C24 | 1.418 (2) |
C6—H6 | 0.9500 | C23—C30 | 1.449 (2) |
C7—C8 | 1.379 (2) | C24—C25 | 1.496 (2) |
C8—C9 | 1.421 (2) | C25—H25A | 0.9800 |
C8—C15 | 1.454 (2) | C25—H25B | 0.9800 |
C9—C10 | 1.493 (2) | C25—H25C | 0.9800 |
C10—H10A | 0.9800 | C26—C27 | 1.351 (3) |
C10—H10B | 0.9800 | C26—H26 | 0.9500 |
C10—H10C | 0.9800 | C27—C28 | 1.405 (3) |
C11—C12 | 1.345 (3) | C27—H27 | 0.9500 |
C11—H11 | 0.9500 | C28—C29 | 1.353 (3) |
C12—C13 | 1.417 (3) | C28—H28 | 0.9500 |
C12—H12 | 0.9500 | C29—H29 | 0.9500 |
C13—C14 | 1.352 (2) | C30—H30 | 0.9500 |
N4—O1—H1A | 101.0 | N4—C15—C8 | 120.32 (16) |
C7—N1—N2 | 110.52 (13) | N4—C15—H15 | 119.8 |
C7—N1—C1 | 130.19 (14) | C8—C15—H15 | 119.8 |
N2—N1—C1 | 119.25 (13) | N8—O2—H2A | 105.0 |
C9—N2—N1 | 106.20 (13) | C24—N6—N5 | 105.80 (13) |
C14—N3—C11 | 108.69 (14) | C29—N7—C26 | 108.17 (15) |
C14—N3—C7 | 127.03 (14) | C29—N7—C22 | 126.09 (15) |
C11—N3—C7 | 123.98 (15) | C26—N7—C22 | 125.65 (15) |
C15—N4—O1 | 109.56 (14) | C30—N8—O2 | 110.12 (14) |
C22—N5—N6 | 110.63 (13) | C17—C16—C21 | 121.33 (16) |
C22—N5—C16 | 129.45 (14) | C17—C16—N5 | 119.32 (15) |
N6—N5—C16 | 119.70 (13) | C21—C16—N5 | 119.33 (15) |
C2—C1—C6 | 120.97 (15) | C16—C17—C18 | 118.98 (17) |
C2—C1—N1 | 118.81 (15) | C16—C17—H17 | 120.5 |
C6—C1—N1 | 120.18 (15) | C18—C17—H17 | 120.5 |
C1—C2—C3 | 119.25 (16) | C19—C18—C17 | 120.55 (18) |
C1—C2—H2 | 120.4 | C19—C18—H18 | 119.7 |
C3—C2—H2 | 120.4 | C17—C18—H18 | 119.7 |
C4—C3—C2 | 120.24 (17) | C18—C19—C20 | 119.84 (17) |
C4—C3—H3 | 119.9 | C18—C19—H19 | 120.1 |
C2—C3—H3 | 119.9 | C20—C19—H19 | 120.1 |
C3—C4—C5 | 120.27 (16) | C21—C20—C19 | 120.25 (17) |
C3—C4—H4 | 119.9 | C21—C20—H20 | 119.9 |
C5—C4—H4 | 119.9 | C19—C20—H20 | 119.9 |
C4—C5—C6 | 120.36 (17) | C16—C21—C20 | 119.05 (16) |
C4—C5—H5 | 119.8 | C16—C21—H21 | 120.5 |
C6—C5—H5 | 119.8 | C20—C21—H21 | 120.5 |
C5—C6—C1 | 118.88 (16) | N5—C22—C23 | 108.17 (14) |
C5—C6—H6 | 120.6 | N5—C22—N7 | 121.95 (15) |
C1—C6—H6 | 120.6 | C23—C22—N7 | 129.85 (15) |
N1—C7—C8 | 107.93 (14) | C22—C23—C24 | 104.11 (15) |
N1—C7—N3 | 122.85 (15) | C22—C23—C30 | 125.38 (15) |
C8—C7—N3 | 129.20 (15) | C24—C23—C30 | 130.28 (16) |
C7—C8—C9 | 104.66 (15) | N6—C24—C23 | 111.28 (15) |
C7—C8—C15 | 125.06 (15) | N6—C24—C25 | 119.72 (15) |
C9—C8—C15 | 130.16 (15) | C23—C24—C25 | 129.00 (16) |
N2—C9—C8 | 110.67 (15) | C24—C25—H25A | 109.5 |
N2—C9—C10 | 120.20 (15) | C24—C25—H25B | 109.5 |
C8—C9—C10 | 129.11 (16) | H25A—C25—H25B | 109.5 |
C9—C10—H10A | 109.5 | C24—C25—H25C | 109.5 |
C9—C10—H10B | 109.5 | H25A—C25—H25C | 109.5 |
H10A—C10—H10B | 109.5 | H25B—C25—H25C | 109.5 |
C9—C10—H10C | 109.5 | C27—C26—N7 | 108.32 (16) |
H10A—C10—H10C | 109.5 | C27—C26—H26 | 125.8 |
H10B—C10—H10C | 109.5 | N7—C26—H26 | 125.8 |
C12—C11—N3 | 107.90 (17) | C26—C27—C28 | 107.58 (17) |
C12—C11—H11 | 126.1 | C26—C27—H27 | 126.2 |
N3—C11—H11 | 126.1 | C28—C27—H27 | 126.2 |
C11—C12—C13 | 107.91 (17) | C29—C28—C27 | 107.87 (18) |
C11—C12—H12 | 126.0 | C29—C28—H28 | 126.1 |
C13—C12—H12 | 126.0 | C27—C28—H28 | 126.1 |
C14—C13—C12 | 107.91 (17) | C28—C29—N7 | 108.05 (17) |
C14—C13—H13 | 126.0 | C28—C29—H29 | 126.0 |
C12—C13—H13 | 126.0 | N7—C29—H29 | 126.0 |
C13—C14—N3 | 107.60 (16) | N8—C30—C23 | 121.29 (16) |
C13—C14—H14 | 126.2 | N8—C30—H30 | 119.4 |
N3—C14—H14 | 126.2 | C23—C30—H30 | 119.4 |
C7—N1—N2—C9 | −1.45 (18) | C22—N5—N6—C24 | 1.11 (18) |
C1—N1—N2—C9 | 176.40 (14) | C16—N5—N6—C24 | −173.96 (14) |
C7—N1—C1—C2 | −139.98 (18) | C22—N5—C16—C17 | 130.07 (19) |
N2—N1—C1—C2 | 42.7 (2) | N6—N5—C16—C17 | −55.9 (2) |
C7—N1—C1—C6 | 42.0 (3) | C22—N5—C16—C21 | −51.1 (2) |
N2—N1—C1—C6 | −135.32 (16) | N6—N5—C16—C21 | 122.89 (17) |
C6—C1—C2—C3 | 0.8 (3) | C21—C16—C17—C18 | −0.3 (3) |
N1—C1—C2—C3 | −177.12 (15) | N5—C16—C17—C18 | 178.50 (16) |
C1—C2—C3—C4 | −1.0 (3) | C16—C17—C18—C19 | 0.0 (3) |
C2—C3—C4—C5 | 0.0 (3) | C17—C18—C19—C20 | 0.4 (3) |
C3—C4—C5—C6 | 1.2 (3) | C18—C19—C20—C21 | −0.5 (3) |
C4—C5—C6—C1 | −1.4 (3) | C17—C16—C21—C20 | 0.2 (3) |
C2—C1—C6—C5 | 0.4 (3) | N5—C16—C21—C20 | −178.57 (16) |
N1—C1—C6—C5 | 178.29 (15) | C19—C20—C21—C16 | 0.2 (3) |
N2—N1—C7—C8 | 1.27 (19) | N6—N5—C22—C23 | −0.78 (19) |
C1—N1—C7—C8 | −176.28 (16) | C16—N5—C22—C23 | 173.68 (16) |
N2—N1—C7—N3 | 179.80 (14) | N6—N5—C22—N7 | 177.44 (14) |
C1—N1—C7—N3 | 2.3 (3) | C16—N5—C22—N7 | −8.1 (3) |
C14—N3—C7—N1 | 49.0 (2) | C29—N7—C22—N5 | −50.5 (3) |
C11—N3—C7—N1 | −124.05 (19) | C26—N7—C22—N5 | 133.17 (18) |
C14—N3—C7—C8 | −132.8 (2) | C29—N7—C22—C23 | 127.3 (2) |
C11—N3—C7—C8 | 54.1 (3) | C26—N7—C22—C23 | −49.0 (3) |
N1—C7—C8—C9 | −0.57 (18) | N5—C22—C23—C24 | 0.14 (19) |
N3—C7—C8—C9 | −178.98 (16) | N7—C22—C23—C24 | −177.89 (17) |
N1—C7—C8—C15 | −176.83 (15) | N5—C22—C23—C30 | 175.12 (16) |
N3—C7—C8—C15 | 4.8 (3) | N7—C22—C23—C30 | −2.9 (3) |
N1—N2—C9—C8 | 1.07 (19) | N5—N6—C24—C23 | −1.01 (19) |
N1—N2—C9—C10 | 179.60 (16) | N5—N6—C24—C25 | 179.69 (15) |
C7—C8—C9—N2 | −0.32 (19) | C22—C23—C24—N6 | 0.6 (2) |
C15—C8—C9—N2 | 175.67 (16) | C30—C23—C24—N6 | −174.07 (17) |
C7—C8—C9—C10 | −178.69 (19) | C22—C23—C24—C25 | 179.77 (18) |
C15—C8—C9—C10 | −2.7 (3) | C30—C23—C24—C25 | 5.1 (3) |
C14—N3—C11—C12 | 0.1 (2) | C29—N7—C26—C27 | −0.3 (2) |
C7—N3—C11—C12 | 174.20 (19) | C22—N7—C26—C27 | 176.57 (17) |
N3—C11—C12—C13 | 0.0 (3) | N7—C26—C27—C28 | 0.1 (2) |
C11—C12—C13—C14 | 0.0 (3) | C26—C27—C28—C29 | 0.2 (3) |
C12—C13—C14—N3 | 0.0 (2) | C27—C28—C29—N7 | −0.4 (3) |
C11—N3—C14—C13 | −0.1 (2) | C26—N7—C29—C28 | 0.5 (2) |
C7—N3—C14—C13 | −173.97 (17) | C22—N7—C29—C28 | −176.44 (18) |
O1—N4—C15—C8 | −176.70 (14) | O2—N8—C30—C23 | 179.19 (15) |
C7—C8—C15—N4 | −160.65 (17) | C22—C23—C30—N8 | 177.58 (17) |
C9—C8—C15—N4 | 24.1 (3) | C24—C23—C30—N8 | −8.8 (3) |
Cg is centroid of C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N2i | 0.84 | 1.95 | 2.7835 (19) | 174 |
O1—H1A···N6ii | 0.84 | 1.99 | 2.8277 (19) | 172 |
C11—H11···Cgii | 0.95 | 3.45 | ? | 170 |
Symmetry codes: (i) x, y+1, z; (ii) −x+1, −y, −z+2. |
Cg is centroid of C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N2i | 0.84 | 1.95 | 2.7835 (19) | 174 |
O1—H1A···N6ii | 0.84 | 1.99 | 2.8277 (19) | 172 |
C11—H11···Cgii | 0.95 | 3.45 | ? | 170 |
Symmetry codes: (i) x, y+1, z; (ii) −x+1, −y, −z+2. |
Acknowledgements
The support of NSF–MRI grant No. 1228232 for the purchase of the diffractometer is gratefully acknowledged. In addition, SKM and TIE would like to thank Professor H. M. S. El-Kashef for his contribution to this study.
References
Aly, M. F., El-Nagger, G. M., El-Emary, T. I., Grigg, R., Metwally, S. A. & Sivagnanam, S. (1994). Tetrahedron, 50, 895–906. CSD CrossRef CAS Web of Science Google Scholar
Bazgir, A., Khanaposhtani, M. & Soorki, A. A. (2008). Bioorg. Med. Chem. Lett. 18, 5800–5803. Web of Science CrossRef PubMed CAS Google Scholar
Brandenburg, K. & Putz, H. (2012). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2014). APEX2, SAINT and SADABS. Bruker AXS, Inc., Madison, Wisconsin, USA. Google Scholar
Dias, L. R. S., Alvim, M. J., Freitas, A. C. C., Barreiro, E. J. & Miranda, A. L. P. (1994). Pharm. Acta Helv. 69, 163–169. CrossRef CAS PubMed Google Scholar
El-Emary, T. I., Al-Muaikel, N. & Moustafa, O. S. (2002). Phosphorus Sulfur Silicon, 177, 195–210. CAS Google Scholar
Elnagdi, M. H., El-Moghayar, R. M. H. & Elgemeie, G. H. (1987). Adv. Heterocycl. Chem. 41, 319–376. CrossRef CAS Web of Science Google Scholar
El-Kashef, H. S., el-Emary, T. I., Gasquet, M., Timon-David, P., Maldonado, J. & Vanelle, P. (2000). Pharmazie, 55, 572–576. PubMed CAS Google Scholar
Quiroga, J., Portilla, J., Abonía, R., Insuasty, B., Nogueras, M. & Cobo, J. (2008a). Tetrahedron Lett. 49, 6254–6256. Web of Science CrossRef CAS Google Scholar
Quiroga, J., Portilla, J., Cruz, S., Abonía, R., Insuasty, B., Nogueras, M., Cobo, J. & Hursthouse, M. (2008b). Open Org. Chem. J. 2, 92–99. CrossRef CAS Google Scholar
Quiroga, J., Portilla, J., Serrano, H., Abonía, R., Insuasty, B., Nogueras, M. & Cobo, J. (2007). Tetrahedron Lett. 48, 1987–1990. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Pyrazoles are interested class of heterocyclic compounds for chemists and pharmacists due to their diverse synthetic and biological applications. Pyrazoles are excellent precursors for the synthesis of condensed polyfunctionally substituted heterocycles (Elnagdi et al., 1987; Quiroga et al., 2007; Quiroga et al., 2008a,b; Aly et al., 1994). Moreover, pyrazole containing compounds exhibit a broad spectrum of pharmaceutical properties such as anti-hyperglycemic and analgesic (Bazgir, et al., 2008), anti-parasitic (Dias et al., 1994) anti-microbial (El-Kashef et al., 2000) and anti-schistosomal activities (El-Emary et al., 2002). Following our on-going study in the synthesis and characterization of new bio-active heterocyclic compounds, we report here the crystal structure determination of the title compound.
There are two independent molecules of the title compound in the asymmetric unit which differ primarily in the orientation of the pendant phenyl and pyrrolyl rings. Thus the dihedral angles between these rings, respectively, and the central heterocyclic ring are 42.69 (8) and 51.88 (6)° in molecule 1 but 54.49 (7) and 49.61 (9)° in molecule 2. Molecules 1 at x, y, z and 1 - x, -1 - y, 2 - z and molecules 2 at x, -1 + y, z and 1 - x, -y, 2 - z are associated into a cyclic tetramer via O—H···N(2 or 6) hydrogen bonds (Table 1 and Fig. 2). These units form sheets approximately parallel to (100) (Fig. 2) in which the major inter-tetramer interaction within the sheet appears to be pairwise C—H···π (C11—H11···Cg: H···Cg = 3.45 Å, C—H···Cg = 170° (Cg is centroid of C1–C6 ring at 1 - x, -y, 2 - z).