ION-PAIR PROPERTIES OF LITHIUM AND CESIUM SALTS OF CARBAZOLE

Authors
ABBOTTO A STREITWIESER A STRATAKIS M KROM JA
Citation
A. Abbotto et al., ION-PAIR PROPERTIES OF LITHIUM AND CESIUM SALTS OF CARBAZOLE, Journal of the American Chemical Society, 120(8), 1998, pp. 1718-1723
Citations number
40
Categorie Soggetti
Chemistry
Journal title
Journal of the American Chemical Society → ACNP
ISSN journal
00027863
Volume
120
Issue
8
Year of publication
1998
Pages
1718 - 1723
Database
ISI
SICI code
0002-7863(1998)120:8<1718:IPOLAC>2.0.ZU;2-1
Abstract
The lithium salt of carbazole, LiCb, is monomeric in THF in the concen tration 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 solv ent separated ion pairs (SSIP) are 22.90 (per hydrogen). The cesium sa lt, CsCb, is a mixture of monomer and dimer with K-2 = 300 M-1. The mo nomer forms a 1:1 complex, CsCb . CbH, with K-c = 62 M-1. The ion pair pK of monomeric CsCb is 19.24.