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4-[2-(4-Chloro-phen-yl)hydrazinyl-idene]-3-methyl-1H-pyrazol-5(4H)-one.

ABSTRACT: In the title compound, C(10)H(9)ClN(4)O, the pyrazole ring [maximum deviation = 0.014?(2)?Å] forms a dihedral angle of 7.06?(14)° with the chloro-benzene ring. The mol-ecular conformation is stabilized by an intra-molecular N-H?O hydrogen bond, which generates an S(6) ring motif. In the crystal, inversion dimers linked by pairs of C-H?O hydrogen bonds generate R(2) (2)(16) ring motifs. The dimers are further connected by N-H?N hydrogen bonds, thereby forming layers lying parallel to the bc plane.

SUBMITTER: Fun HK

PROVIDER: S-EPMC3201479 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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4-[2-(4-Chloro-phen-yl)hydrazinyl-idene]-3-methyl-1H-pyrazol-5(4H)-one.

Fun Hoong-Kun HK Quah Ching Kheng CK Nithinchandra Kalluraya Balakrishna B

Acta crystallographica. Section E, Structure reports online 20110917 Pt 10

In the title compound, C(10)H(9)ClN(4)O, the pyrazole ring [maximum deviation = 0.014 (2) Å] forms a dihedral angle of 7.06 (14)° with the chloro-benzene ring. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R(2) (2)(16) ring motifs. The dimers are further connected by N-H⋯N hydrogen bonds, thereby forming layers lying parallel to the bc plane ...[more]

PMID: 22058782

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