Journal article

Electronic energy transfer in multichromophoric arrays. A sequential and superexchange dynamics study

EKL Yeow, DJ Haines, KP Ghiggino, MN Paddon-Row

JOURNAL OF PHYSICAL CHEMISTRY A | AMER CHEMICAL SOC | Published : 1999

Abstract

The dynamics of electronic energy transfer (EET) from a photoexcited donor to an acceptor connected by an intermediate bridge is investigated using the Haken, Strobl, and Reineker stochastic Liouville equations (HSR). The effects of the system-bath interaction on both the superexchange and sequential energy transfer mechanisms via the bridge are discussed and subsequently used to explain the role of the bridge in mediating EET. We examine the mechanisms of EET in a rigidly linked naphthalene dimer where the chromophores are separated by six a bonds (DN-6). Experimental studies of EET using fluorescence anisotropy measurements indicate that the superexchange mechanism dominates in DN-6.

University of Melbourne Researchers