A near infrared and NMR spectroscopic study of the solvation of basic aprotic solvents and anions in tert-butanol

被引：9

作者：

Symons, MCR ^{[1
]}

Robinson, HL

机构：

[1] De Montfort Univ, Dept Chem, Leicester LE1 9BH, Leics, England

[2] Tech Serv Dept, Tarmac Grp, Wolverhampton WV4 6JP, W Midlands, England

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2001年 / 3卷 / 04期

关键词：

D O I：

10.1039/b007385g

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 near infrared (NIR) spectrum for pure tert-butanol shows an intense, very narrow feature at 7062 cm(-1) which is close to the band for dilute solutions in carbon tetrachloride and for the monomer in the gas phase. When basic aprotic solvents such as dimethylsulfoxide or cyanomethane are added, the intensity of this (OH)(free) band falls to low values. Similar behaviour is observed for added tetraalkylammonium salts. These results are discussed in terms of the scavenging of (OH)(free) groups by these additives. They are compared with results of similar studies using methanol and water and hence estimates of the active solvation numbers are derived. NIR is also used to help interpret H-1 NMR studies of the O-H protons in the systems.

引用

页码：535 / 541

页数：7

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