Electronic energy transfer in molecular dyads built around boron-ethyne-substituted subphthalocyanines.
A cunning strategy has been devised for functionalizing and solubilizing subphthalocyanines at the central boron atom, so that the inherent photophysical properties remain intact. The approach, which leads to the formation of a stable B-C[triple bond]C linkage, is demonstrated by the isolation of two shape-persistent, photo-active molecular-scale dyads, each capable of multiple energy-transfer steps (see scheme, S = singlet energy transfer; T = triplet energy transfer).
Ziessel
Raymond
R
Laboratoire de Chimie Moléculaire et Spectroscopies Avancées (LCOSA), Ecole Européenne de Chimie, Polymères et Matériaux, CNRS, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France. ziessel@chimie.u-strasbg.fr
Ulrich
Gilles
G
Elliott
Kristopher J
KJ
Harriman
Anthony
A