Phenothiazine− Bipyridinium Cyclophanes

…, C Petry, A Knorr, C Stadler, HA Staab

Index: Bauer, Helmut; Stier, Falk; Petry, Christoph; Knorr, Andreas; Stadler, Christian; Staab, Heinz A. European Journal of Organic Chemistry, 2001 , # 17 p. 3255 - 3278

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Citation Number: 27

Abstract

Abstract The syntheses of oligooxa [8.8]-,-[11.11]-,-[14, 14]-,-[17.17]-and-[20.20] cyclophanes with phenothiazine as donor and bipyridinium dication as acceptor are described, together with preparations of the corresponding oligomethylene-[3.3]-and-[4.4] cyclophanes. While the large [8.8]-,[11.11]-and [14.14] cyclophanes in particular show well-defined charge- transfer (CT) absorption maxima, the smallest [3.3] cyclophane does not exhibit any CT ...