161
Light-Harvesting in Multichromophoric Rotaxanes

M. E. Gallina, B. Baytekin, C. A. Schalley, P. Ceroni – 2011

Two rotaxanes with benzyl ether axles and tetralactam wheels were synthesized through an anion template effect. They carry naphthalene chromophores attached to the stopper groups and a pyrene chromophore attached to the wheel. The difference between the two rotaxanes is represented by the connecting unit of the naphthyl chromophore to the rotaxane axle: a triazole or an alkynyl group. Both rotaxanes exhibit excellent light-harvesting properties: excitation of the naphthalene chromophores is followed by energy transfer to the pyrene unit with efficiency higher than 90 % in both cases. This represents an example of light-harvesting function among chromophores belonging to mechanically interlocked components, that is, the axle and the wheel of the rotaxanes.

Title
161
Light-Harvesting in Multichromophoric Rotaxanes
Author
M. E. Gallina, B. Baytekin, C. A. Schalley, P. Ceroni
Date
2011-11-28
Identifier
DOI 10.1002/chem.201102981
Source(s)
Citation
Chem. Eur. J. 2012, 18, 1528-1535