BASICITY, IR-SPECTRA AND PROTONATION OF SOME PROTON SPONGES IN ACETONITRILE

被引：40

作者：

BRZEZINSKI, B

SCHROEDER, G

GRECH, E

MALARSKI, Z

SOBCZYK, L

机构：

[1] WROCLAW UNIV,INST CHEM,F JOLIOT CURIE 14,PL-50383 WROCLAW,POLAND

[2] ADAM MICKIEWICZ UNIV,FAC CHEM,PL-60780 POZNAN,POLAND

[3] TECH UNIV SZCZECIN,INST FUNDAMENTAL CHEM,PL-71065 SZCZECIN,POLAND

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1992年 / 274卷

关键词：

D O I：

10.1016/0022-2860(92)80147-A

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 pK(a) values in acetonitrile for three proton sponges, 1,8-bis(dimethylamino)naphthalene (DMAN), 1,8-bis(dimethylaminomethyl)naphthalene (DMAMN) and 1,2-bis(dimethylaminomethyl)benzene (DMAMB), were determined. The relations between basicity and structure, and the infrared behaviour of the intramolecular NHN hydrogen bonds formed via protonation by phenols is discussed. It was found that an increase in the basicity of a sponge favours deprotonation of the phenols, while at the same time the strength of the NHN+ hydrogen bond diminishes.

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页码：75 / 82

页数：8

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