p-chloro-, p-brorno- and two polymorphs of p-iodoacetophenone

被引：9

作者：

Britton, D ^{[1
]}

Brennessel, WW ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2004年 / 60卷

关键词：

D O I：

10.1107/S0108270104013824

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title p-haloacetophenones, C8H7XO (X = Cl, Br and I), have different packing modes. The chloro compound contains H...O and H...Cl contacts, but no Cl...O contacts. The bromo compound and one polymorph ( A) of the iodo compound are isomorphous, with significant X...O contacts [Br...O = 3.320 (4) Angstrom and I...O = 3.374 (5) Angstrom]. In the other polymorph ( B) of the iodo compound, the I...O distance is 3.082 (4) Angstrom. Both polymorphs contain C-H...pi contacts; these contacts are shorter in A than in B.

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页码：O552 / O556

页数：5

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