Journal of the American Chemical Society

Electron-donating properties of oxygen vs. sulfur. Redox potentials for some pyrylium and thiapyrylium salts

FD Saeva, GR Olin

Index: Saeva, F. D.; Olin, G. R. Journal of the American Chemical Society, 1980 , vol. 102, # 1 p. 299 - 303

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Citation Number: 51

Abstract

Abstract: The redox levels for tWo series of pyrylium and thiapyrylium salts were measured by cyclic voltammetry. This information was utilized to provide a quantitative comparison of the highest occupied (HOMO) and lowest unoccupied molecular orbitals (LUMO) which is a measure of the thermodynamic stabilities to electron transfer of oxygen vs. sulfur adjacent to car-bon cation, radical, and anionic centers in a single system. In one of the series [ie., 4-( ...