Acidity of dibasic carbon acids. Part 4. Structure and ion solvation state of dimetallic salts of 9,10-dihydroanthracene and its derivatives in tetrahydrofuran
Abstract
The ion solvation state of dimetallic salts (M = Li–Cs) of 9,10-dihydroanthracene (DHA) and its derivatives in THF was studied by UV–VIS and NMR spectroscopies. The cations are situated on the opposite sides of the dianion plane in the dimetallic salts. Cation–dianion interaction stabilized the negative charge of the carbanion. The mechanism of dianion charge stabilization is affected by a phenyl substituent.