Crystal structure of (Z)-3-[5-chloro-2-(prop-2-ynyloxy)phenyl]-3-hydroxy-1-[4-(trifluoromethyl)phenyl]prop-2-en-1-one

被引：0

作者：

Dalal, Aarti ^{[1
]}

Kamboj, Ramesh C. ^{[1
]}

Kumar, Dinesh ^{[2
]}

Sharma, Mahendra Kumar ^{[3
]}

Selvarajan, Nagendran ^{[3
]}

机构：

[1] Kurukshetra Univ, Dept Chem, Kurukshetra 136119, Haryana, India

[2] Univ Delhi, Hindu Coll, Dept Chem, Delhi 110007, India

[3] Indian Inst Technol, Dept Chem, New Delhi 110016, India

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2015年 / 71卷

关键词：

crystal structure; hydroxy enone; tautomerisation; hydrogen bonding; photo-isomerisation;

D O I：

10.1107/S2056989015012748

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The title compound, C19H12ClF3O3, obtained by the photochemical transformation of 2-[5-chloro-2-(prop-2-ynyloxy)benzoyl]-3-[4-(trifluoromethyl) phenyl]oxirane adopts a Z conformation with respect to the enolic C=C double bond. The dihedral angle between the benzene rings is 12.25 (16)degrees and an intramolecular O-H center dot center dot center dot O hydrogen bond closes an S(6) ring. An intramolecular C-H center dot center dot center dot O interaction also leads to an S(6) ring. In the crystal, very weak C-H center dot center dot center dot O interactions and short Cl center dot center dot center dot Cl contacts [3.3221 (16) angstrom] are seen, as well as weak aromatic pi-pi stacking interactions [centroid-centroid separation = 3.879 (2) angstrom].

引用

页码：O556 / +

页数：9

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