Concomitant polymorphs of 1,3-bis(3-fluorophenyl)urea

被引：8

作者：

Capacci-Daniel, Christina A. ^{[1
]}

Bertke, Jeffery A. ^{[1
]}

Dehghan, Shoaleh ^{[1
]}

Hiremath-Darji, Rupa ^{[1
]}

Swift, Jennifer A. ^{[1
]}

机构：

[1] Georgetown Univ, Dept Chem, 37th & O St NW, Washington, DC 20057 USA

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2016年 / 72卷

关键词：

diphenylurea; polymorph; fluorine; hydrogen-bonding motifs; Hirshfeld surface analysis; crystal structure; CRYSTALS;

D O I：

10.1107/S2053229616013565

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hydrogen bonding between urea functionalities is a common structural motif employed in crystal-engineering studies. Crystallization of 1,3-bis(3-fluorophenyl)urea, C13H10F2N2O, from many solvents yielded concomitant mixtures of at least two polymorphs. In the monoclinic form, one-dimensional chains of hydrogen-bonded urea molecules align in an antiparallel orientation, as is typical of many diphenylureas. In the orthorhombic form, one-dimensional chains of hydrogen-bonded urea molecules have a parallel orientation rarely observed in symmetrically substituted diphenylureas.

引用

页码：692 / +

页数：13

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