STRUCTURE OF BETA-N-DIMETHYLAMINO-4-DODECYLOXYPROPIOPHENONE COMPLEXES WITH DICARBOXYLIC AND POLYCARBOXYLIC ACIDS

被引:23
作者
LEBEDEVA, TL [1 ]
SHANDRYUK, GA [1 ]
SYCHEVA, TI [1 ]
BEZBORODOV, VS [1 ]
TALROZE, RV [1 ]
PLATE, NA [1 ]
机构
[1] RUSSIAN ACAD SCI,AV TOPCHIEV PETROCHEM SYNTH INST,MOSCOW 117571,RUSSIA
关键词
D O I
10.1016/0022-2860(95)08855-P
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
The type of bonds responsible for the complexation of di- and polyacids with the tertiary amine beta-N-dimethylamino-4-dodecyloxypropiophenone is studied by means of FTIR spectroscopy. The complexes are shown to be stable due to strong H-bonding with partial charge transfer. The characteristic composition for complexes of polyacrylic, polymethacrylic and malonic acids is calculated as 2:1 (number of carboxylic groups per number of amine molecules) whereas glutaric acid forms complexes of different composition including 1:1. The characteristic composition results from the structure of the initial acid. The structures of both the characteristic complex and ''excess'' acid are also discussed.
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页码:89 / 96
页数:8
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