CHARACTERIZATION OF DIBROMINE MONOXIDE (BR2O) BY BROMINE K-EDGE EXAFS AND IR SPECTROSCOPY

被引：32

作者：

LEVASON, W ^{[1
]}

OGDEN, JS ^{[1
]}

SPICER, MD ^{[1
]}

YOUNG, NA ^{[1
]}

机构：

[1] UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1990年 / 112卷 / 03期

关键词：

D O I：

10.1021/ja00159a019

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dark brown dibromine monoxide (Br20) has been prepared by controlled decomposition of Br02 and studied by infrared and UV-vis spectroscopy and bromine K-edge EXAFS. Infrared studies of Br20 are consistent with C2v symmetry with V1 and v3 at 508 and 595 cm-1, respectively, in the solid and at 528 and 626 cm-1 in a nitrogen matrix. The UV-vis spectrum has an intense absorption at 47 000 cm-1 with successively weaker shoulders at 31 200 and 22 100 cm-1. The mass spectrum shows a parent ion (triplet) at 174/176/178 amu. Bromine K-edge EXAFS leads to the First structural characterization of a bromine oxide with d(Br-0) = 1.85 (1) Å, d(Br…Br) = 3.07 (2) Å, and Br-O-Br = 112 ± 2°. © 1990, American Chemical Society. All rights reserved.

引用

页码：1019 / 1022

页数：4

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