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Crystal structure of pyrazoxyfen.

ABSTRACT: The title compound, C20H16Cl2N2O3 (systematic name: 2-{[4-(2,4-di-chloro-benzo-yl)-1,3-di-methyl-pyrazol-5-yl}-oxy}-1-phenyl-ethan-1-one), is the benzoyl-pyrazole herbicide pyrazoxyfen. The asymmetric unit comprises two independent mol-ecules, A and B, in which the pyrazole ring makes dihedral angles of 80.29 (10) and 61.70 (10)° and 87.60 (10) and 63.92 (8)°, respectively, with the di-chloro-phenyl and phenyl rings. In the crystal, C-H⋯O and C-H⋯N hydrogen bonds, and C-H⋯π and π-π [3.646 (2) Å] inter-actions link adjacent mol-ecules, forming a two-dimensional network parellel to (011). In addition, the networks are linked by weak inter-molecular C-Cl⋯π [3.356 (2), 3.950 (2), 3.250 (2) and 3.575 (2) Å] inter-actions, resulting in a three-dimensional architecture.

SUBMITTER: Kwon E

PROVIDER: S-EPMC4719964 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature

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Crystal structure of pyrazoxyfen.

Kwon Eunjin E Kim Jineun J Kang Gihaeng G Kim Tae Ho TH

Acta crystallographica. Section E, Crystallographic communications 20151209 Pt 12

The title compound, C20H16Cl2N2O3 (systematic name: 2-{[4-(2,4-di-chloro-benzo-yl)-1,3-di-methyl-pyrazol-5-yl}-oxy}-1-phenyl-ethan-1-one), is the benzoyl-pyrazole herbicide pyrazoxyfen. The asymmetric unit comprises two independent mol-ecules, A and B, in which the pyrazole ring makes dihedral angles of 80.29 (10) and 61.70 (10)° and 87.60 (10) and 63.92 (8)°, respectively, with the di-chloro-phenyl and phenyl rings. In the crystal, C-H⋯O and C-H⋯N hydrogen bonds, and C-H⋯π and π-π [3.646 (2) Å] ...[more]

PMID: 26870483

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