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(4Z)-4-[(4-Chloro-anilino)(phen-yl)methyl-ene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.

ABSTRACT: The title compound, C(23)H(18)ClN(3)O, was synthesized by the reaction of 4-chloro-aniline and 4-benzoyl-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one. The terminal benzene rings are twisted at dihedral angles of 48.3?(2), 71.4?(2) and 36.1?(2)° with respect to the central eight-atom methyl-pyrazolone/amino-methyl-ene unit. An intra-molecular N-H?O hydrogen bond stabilizes the planar conformation [mean deviation = 0.0398?(5)?Å] of the central unit, generating an S(6) ring motif. The crystal packing is stabilized by van der Waals forces.

SUBMITTER: Chi X 

PROVIDER: S-EPMC2980146 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature

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(4Z)-4-[(4-Chloro-anilino)(phen-yl)methyl-ene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.

Chi Xiaodong X   Xiao Jing J   Yin Yuhong Y   Xia Min M  

Acta crystallographica. Section E, Structure reports online 20091224 Pt 1

The title compound, C(23)H(18)ClN(3)O, was synthesized by the reaction of 4-chloro-aniline and 4-benzoyl-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one. The terminal benzene rings are twisted at dihedral angles of 48.3 (2), 71.4 (2) and 36.1 (2)° with respect to the central eight-atom methyl-pyrazolone/amino-methyl-ene unit. An intra-molecular N-H⋯O hydrogen bond stabilizes the planar conformation [mean deviation = 0.0398 (5) Å] of the central unit, generating an S(6) ring motif. The crystal packing is  ...[more]

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