TRIPHENYLPHOSPHONIUM BROMIDE

被引：10

作者：

BRICKLEBANK, N

GODFREY, SM

MCAULIFFE, CA

PRITCHARD, RG

机构：

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1993年 / 49卷

关键词：

D O I：

10.1107/S0108270192013052

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structure consists of unique [C18H15PH]+Br- ion pairs, which are-bisected by a crystallographic mirror plane. The proton is bonded to the P atom [P-H 1.61 (9) angstrom] and is directed towards a Br anion [P...Br 2.20 (9) angstrom]. Although the structure is ionic, comparison with phosphonium bromide [PH4+.Br-, P...Br 4.029 (4) angstrom; Schroder & Rush (1971). J. Chem. Phys. 54, 1968-1973] indicates a much greater cation-anion interaction, analogous to molecular Ph3PBr2 [Bricklebank, Godfrey, McAuliffe, Mackie & Pritchard (1992). J. Chem. Soc. Chem. Commun. pp. 355-356], which has a novel four-coordinate spoke structure with significant covalent Br-Br interaction.

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页码：1017 / 1018

页数：2

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