Remarkable stability and enhanced optical activity of a chiral supramolecular bis-porphyrin tweezer in both solution and solid state.
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.
Borovkov
Victor V
VV
Entropy Control Project, ICORP, JST, 4-6-3 Kamishinden, Toyonaka-shi, Osaka 560-0085, Japan. victrb@inoue.jst.go.jp
Lintuluoto
Juha M
JM
Sugiura
Makiko
M
Inoue
Yoshihisa
Y
Kuroda
Reiko
R