Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-(4-ethoxyphenyl)-3-hydroxyprop-2-en-1-one, C16H18N2O3

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(2Z)-3-(3-Bromo­anilino)-1-(5-hy­droxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)but-2-en-1-one

In the title compound, C(20)H(18)BrN(3)O(2), the central carbonyl group forms amine-N-H⋯O and hy-droxy-O-H⋯O hydrogen bonds, which lead to two fused S(6) rings. The N-bound phenyl ring is coplanar with the five-membered ring to which it is attached [dihedral angle = 5.22 (18)°], but the dihedral angle [33.87 (17)°] between the terminal phenyl and bromo-benzene rings indicates an overall twist i...

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(2E)-1-(4-Bromo­phen­yl)-3-[3-(4-meth­oxy­phen­yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-en-1-one

The pyrazole ring in the title compound, C25H19BrN2O2, is almost planar (r.m.s. deviation = 0.003 Å) and forms dihedral angles of 7.56 (13) and 56.48 (13)° with the N- and C-bound benzene rings, respectively. The prop-2-en-1-one residue has an E conformation about the C=C double bond [1.328 (4) Å] and is almost coplanar with the pyrazole ring [C-C-C-C torsion angle = -174.4 (3)°]. A twist betwe...

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(2Z)-1-(5-Hy­droxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-3-(4-methyl­anilino)­but-2-en-1-one

A twist is evident in the title compound, C(21)H(21)N(3)O(2), the dihedral angle between the terminal six-membered rings being 29.46 (10)°; the linked five- and six-membered rings are coplanar [1.30 (11)°]. The carbonyl O atom accepts intra-molecular hydrogen bonds from the adjacent hy-droxy and amine groups. The three-dimensional crystal packing is achieved through C-H⋯π inter-actions.

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(2E)-1-(2,4-Dichloro­phen­yl)-3-[3-(4-nitro­phen­yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-en-1-one

In the title compound, C(24)H(15)Cl(2)N(3)O(3), the C=C double bond is E configured. The 1-phenyl-1H-pyrazole moiety is roughly planar (r.m.s. deviation of all fitted non-H atoms = 0.0780 Å), but the mean planes of the two components are inclined at an angle of 9.95 (7)°. The mean plane defined by the non-H atoms of the 1H-pyrazole ring encloses angles of 9.95 (7), 24.54 (6) and 43.02 (6)° with...

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(E)-1-(2,4-Dichloro­phen­yl)-3-[3-(4-meth­oxy­phen­yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-en-1-one

In the title mol-ecule, C(25)H(18)Cl(2)N(2)O(2), the dihedral angles between the pyrazole ring and its N- and C-bonded benzene rings are 8.28 (11) and 40.89 (10)°, respectively. The dihedral angle between the benzene rings is 39.03 (11)°. The title mol-ecule exists in a trans conformation with respect to the acyclic C=C bond. In the crystal, mol-ecules are linked into inversion dimers by pairs ...

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ژورنال

عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures

سال: 2017

ISSN: 2197-4578,1433-7266

DOI: 10.1515/ncrs-2016-0196