Crystal structure of (Z)-2,3-dichloro1,4-bis(4-methoxyphenyl)but-2-ene-1,4-dione

被引：2
|
作者：
Tittal, Ram K. [1 ]
Kumar, Satish [2 ]
Ram, R. N. [1 ]
机构：
[1] Indian Inst Technol Delhi, Dept Chem, New Delhi 110016, India
[2] Univ Enclave Delhi, St Stephens Coll, Dept Chem, Delhi 110007, India
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2014年 / 70卷
关键词：
crystal structure; 2,3-dichlorobut-2-ene-1; 4-dione; dichloromethyl radical; CuCl/bpy; trichloromethyl groups; stereoselectivity;
D O I：
10.1107/S1600536814018790
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The title compound, C18H14Cl2O4, adopts a Z conformation around the cental C=C bond. The two aromatic rings of the molecule are nearly perpendicular to each other, with a dihedral angle between of 86.22 (14)degrees. The methoxy substituents lie close to the plane of the attached benzene rings. The C(ar)-C(ar)-O-C(Me) torsion angles are -2.4 (7) and 7.5 (6)degrees. Weak C-H center dot center dot center dot O interactions link the molecules forming a three-dimensional network. The crystal packing also displays short [3.160 (3)angstrom] Cl center dot center dot center dot O halogen-bonding contacts between molecules related by the screw axis. The structure exhibits disorder of one carbonyl O atom with a refined occupancy ratio of 0.21 (6):0.79 (6).
引用
收藏
页码：O1049 / +
页数：10
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