FTIR SPECTROSCOPIC OBSERVATION OF GASEOUS HOI

被引：34

作者：

BARNES, I ^{[1
]}

BECKER, KH ^{[1
]}

STARCKE, J ^{[1
]}

机构：

[1] UNIV GESAMTHSCH WUPPERTAL,PHYS CHEM FACHBEREICH 9 BELGISCHE,GAUSSTR 20,W-5600 WUPPERTAL 1,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 196卷 / 06期

关键词：

D O I：

10.1016/0009-2614(92)85997-O

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Medium resolved infrared spectra (DELTA-nu = 1 cm-1) have been recorded in the wave-number range 4000-600 cm-1 of the products formed in the 254 nm photolysis of I2-H2O2, CH3I-H2O2 and CH2I2-H2O2 gas mixtures at a total pressure of 1013 mbar of N2 at 298 +/- 2 K in a 1080 2 glass reaction chamber. In all of the reaction systems studied absorption features were observed with band centers at approximately 3620 and 1070 cm-1 which have been assigned to the nu-1 OH stretching and nu-2 bending modes of gaseous hypoiodous acid (HOI), respectively. This represents the first report of the gaseous IR spectrum of HOI. The investigations provide the first conclusive evidence that the reaction of OH with I2 leads to the formation of HOI. The lifetime of HOI in the chamber was only 1-2 min and was too short to allow any studies on the chemistry of HOI with the applied experimental technique.

引用

页码：578 / 583

页数：6