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Remarkable Stability and Enhanced Optical Activity of a Chiral Supramolecular Bis-porphyrin Tweezer in Both Solution and Solid State

2002; American Chemical Society; Volume: 124; Issue: 38 Linguagem: Inglês

10.1021/ja026884z

1943-2984

Victor Borovkov, Juha M. Lintuluoto, Makiko Sugiura, Yoshihisa Inoue, Reiko Kuroda,

Supramolecular Chemistry and Complexes

Interaction of the achiral syn (face-to-face) conformer of the ethane-bridged bis(zinc octaethylporphyrin) with the enantiopure 1,2-diaminocyclohexane results in the exclusive formation of a supramolecular chiral tweezer. This 1:1 host-guest complex exhibits remarkable stability in both solution (even upon photoexcitation) and solid-state phases, with a high degree of optical activity arising from the two-point interaction mode and optimal spatial geometry.