THE ORIGIN OF INFRARED-ABSORPTION BANDS OF SOOT IN THE REGION 750 TO 900 CM-1

被引:24
作者
JASSIM, JA [1 ]
LU, HP [1 ]
CHUGHTAI, AR [1 ]
SMITH, DM [1 ]
机构
[1] UNIV DENVER,DEPT CHEM,DENVER,CO 80208
关键词
Spectroscopy; Absorption; -; Infrared;
D O I
10.1366/0003702864815385
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Bands which showed isotopic shifts upon regenerating soot functionalities with **1**8O//2 in the 1700 cm** minus **1 and 1200 cm** minus **1 regions were assigned to ketone-like carbonyl and ether-like groups on the surface, while the 1590 cm** minus **1 band, which fails to show any isotopic shift upon the reoxidation of soot with **1**8O//2 at high temperature, has been assigned to a carbonyl group conjugated with aromatic ring segments. Bands in the 800 cm** minus **1 were given no definite assignments. Logical origins of these bands could be the C-H out-of-plane bending of highly substituted aromatic compounds or stretching modes of peroxides or hydroperoxides. An attempt is made in this work to substantiate the origin of these bands.
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页码:113 / 116
页数:4
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