Ions and ion pairs of alkali-metal salts of CH-acids in the nucleophilic vinyl substitution reaction

1982 ◽  
Vol 31 (7) ◽  
pp. 1493-1493
Author(s):  
A. A. Solov'yanov ◽  
M. M. Shtern ◽  
I. P. Beletskaya ◽  
O. A. Reutov
Keyword(s):  
Alkali Metal ◽  
Substitution Reaction ◽  
Ion Pairs ◽  
Metal Salts ◽  
Alkali Metal Salts ◽  
Ch Acids ◽  
Nucleophilic Vinyl Substitution

Studies of Ions and Ion Pairs in Tetrahydrofuran Solution. Alkali Metal Salts of Tetraphenylboride

1965 ◽  
Vol 69 (2) ◽  
pp. 608-611 ◽  
Author(s):  
D. N. Bhattacharyya ◽  
C. L. Lee ◽  
J. Smid ◽  
M. Szwarc
Keyword(s):  
Alkali Metal ◽  
Ion Pairs ◽  
Metal Salts ◽  
Alkali Metal Salts ◽  
Tetrahydrofuran Solution

Spectrophotometric study of ion pairing in diphenylmethyl alkali metals salts

1979 ◽  
Vol 57 (9) ◽  
pp. 999-1005 ◽  
Author(s):  
E. Buncel ◽  
B. C. Menon ◽  
J. P. Colpa
Keyword(s):  
Alkali Metal ◽  
Alkali Metals ◽  
Ion Pairs ◽  
Ion Pairing ◽  
Spectrophotometric Study ◽  
Metal Salts ◽  
Effect Of Temperature ◽  
Alkali Metal Salts ◽  
Nmr Studies ◽  
Temperature Changes

A spectrophotometric study of diphenylmethyllithium (DPM−Li+) and diphenylmethyl-potassium (DPM−K+) in ethereal solvents has yielded information on ion pairing and solvation phenomena in these carbanion systems. Different spectral absorptions are observed, characteristic of two types of contact ion pairs (unsolvated and partially solvated) as well as the solvent separated ion pair species, on varying the cation and solvent. This contrasts with our previous observations with triphenylmethyl alkali metal salts where only contact and solvent separated ion pairs were observed. The effect of 18-crown-6 polyether and the effect of temperature changes on the ion pairing equilibria are evaluated. Thermodynamic parameters are obtained for equilibria pertaining to the DPM−Li+/THF and DPM−Li+/DME systems. The results are discussed in relation to literature reports on ion pairing in these systems as derived from nmr studies. Comparison with triphenylmethyl alkali metal salts yields information relating to delocalization and steric effects on ion pairing.

ChemInform Abstract: Superbasic Ion Pairs: Alkali Metal Salts of Alkylarenes

ChemInform ◽  
1989 ◽  
Vol 20 (49) ◽  
Author(s):  
G. GAU ◽  
L. ASSADOURIAN ◽  
S. VERACINI
Keyword(s):  
Alkali Metal ◽  
Ion Pairs ◽  
Metal Salts ◽  
Alkali Metal Salts

Superbasic Ion Pairs: Alkali Metal Salts of Alkylarenes

2007 ◽  
pp. 237-285 ◽  
Author(s):  
Georges Gau ◽  
Louise Assadourian ◽  
Serge Veracini
Keyword(s):  
Alkali Metal ◽  
Ion Pairs ◽  
Metal Salts ◽  
Alkali Metal Salts
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