Bw. Zhang et al., PHOTOINDUCED INTRAMOLECULAR ELECTRON-TRANSFER AND EXCIPLEX FORMATION IN ANTHRACENE AND PYRENE BINARY COMPOUNDS, Journal of photochemistry and photobiology. A, Chemistry, 106(1-3), 1997, pp. 169-175
Two series of six donor-acceptor binary compounds, pyrene-dicyanovinyl
benzene (Py-n-DCVB) and anthracene-dicyanovinylbenzene (An-n-DCVB), wi
th different chain lengths were designed and synthesized. Using steady
state spectroscopy and time resolved spectroscopy, the effects of sol
vent polarity, viscosity, temperature and salt content were studied. T
he photoinduced electron transfer and exciplex formation processes, as
a function of the dynamics of chain conformation and the size of elec
tron donor unit, are discussed and compared respectively for all six b
inary compounds. (C) 1997 Elsevier Science S.A.