Synthesis of viologens with extended π-conjugation and their photochromic behavior on near-IR absorption

M Nanasawa, M Miwa, M Hirai…

Index: Nanasawa, Masato; Miwa, Makio; Hirai, Michiko; Kuwabara, Tetsuo Journal of Organic Chemistry, 2000 , vol. 65, # 2 p. 593 - 595

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Citation Number: 48

Abstract

Colorless viologens composed of diquaternary salts of 4, 4′-bipyridine turn to colored radical cations with reducing agents1 or by electrochemical reaction, 2 whose colored species spontaneously disappear in the liquid phase, because the rate of back electron ...