R. D. Topsom

Crystal and molecular sturcture of pyrylium salts: Part II. Crystal and molecular structure of 2,6-diphenyl-4-(4-nitrophenyl) pyrylium perchlorate nitromethane solvate, electronegativity effect on geometry of the action

T. M. Krygowski, I. Turowska-Tyrk, R. D. Topsom, 1991 .