Structure and Photophysical Properties of 2,6-Di-tert-Butyl-4-arylpyrylium 2-Naphthalenesulfonate Ion Pairs in Solution and in the Solid State
作者:Zhe Lin、Gary B. Schuster
DOI:10.1021/jo00084a033
日期:1994.3
2,6-Di-tert-butyl-4-arylpyrylium 2-naphthalenesulfonate salts form ion pairs in dimethylcarbonate solution that exhibit charge-transfer absorptions and result in the rapid quenching of the pyrylium fluorescence. Molecular mechanics calculations predict that these ion pairs exist in a T-shaped orientation, but X-ray structural analysis reveals a pi face-to-face arrangement in the solid state. Nuclear Overhauser effect and time-resolved spectroscopic experiments carried out in solution are consistent with a T-shape for the ion pair, but these experiments do not prove that this structural hypothesis is correct.
Angekis, Francesco De; Doddi, Giancarlo; Ercolani, Gianfranco, Journal of the Chemical Society. Perkin transactions II, 1987, p. 633 - 638
作者:Angekis, Francesco De、Doddi, Giancarlo、Ercolani, Gianfranco
DOI:——
日期:——
CORDISCHI, V. C.;DODDI, G.;ERCOLANI, G., J. CHEM. RES. SYNOP., 1985, N 2, 62-63