Ion pair properties of lithium and cesium salts of carbazole

被引：12

作者：

Abbotto, A ^{[1
]}

Streitwieser, A ^{[1
]}

Stratakis, M ^{[1
]}

Krom, JA ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1998年 / 120卷 / 08期

关键词：

D O I：

10.1021/ja972839t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The lithium salt of carbazole, LiCb, is monomeric in THF in the concentration range (1-5) x 10(-3) M. It is a contact ion pair (CIP) with an effective ion pair pK of 13.48 on a scale where fluorenyllithium solvent separated ion pairs (SSIP) are 22.90 (per hydrogen). The cesium salt, CsCb, is a mixture of monomer and dimer with K-2 = 300 M-1. The monomer forms a 1:1 complex, CsCb . CbH, with K-c = 62 M-1. The ion pair pK of monomeric CsCb is 19.24.

引用

页码：1718 / 1723

页数：6

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