4-[(2,6-Dichlorophenyl)(hydroxyimino)-methyl]-1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one

被引：4
|
作者：
Li, XF
Feng, YQ [1 ]
Zhuang, JP
Hu, XF
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2003年 / 59卷
关键词：
D O I：
10.1107/S1600536803002423
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The title compound, C18H15Cl2N3O2, was derived from the product of the intermolecular [3 + 2]-cycloaddition reaction of 2,6-dichlorobenzonitrile oxide and 1,5-dimethyl-2-phenyl-1,2-dihydropyrazol-3-one. The hydroxy group and the 2,6-dichlorophenyl ring of the oxime are in a trans conformation and the C==N-O angle is 113.90 (15) Angstrom. Pairs of molecules form centrosymmetric O-H ... N hydrogen-bonded dimers, with an O-H ... N distance of 2.821 (2) Angstrom. The pyrazole ring is nearly planar, with a mean deviation from the plane of 0.0246 (3) Angstrom and a dihedral angle between the pyrazole and the unsubstituted phenyl ring of 131.7 (4)degrees.
引用
收藏
页码：O272 / O274
页数：3
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