Resonance Energy Transfer in the Solution Phase Photophysics of -Re(CO)3L+ Pendants Bonded to Poly(4-vinylpyridine)

L.L. BRACCO; M.P. JULIARENA; G.T. RUIZ; M.R. FÉLIZ; G.J. FERRAUDI; E. WOLCAN

JOURNAL OF PHYSICAL CHEMISTRY B

Año: 2008 vol. 112 p. 11506 - 11516

1089-5647

Abstract Polymers with general formula {[(vpy)2vpyRe(CO)3(tmphen)+]}n{[(vpy)2vpyRe(CO)3(NO2-phen)+]}m (NO2-phen = 5-Nitro-1,10 phenanthroline;  tmphen = 3,4,7,8-tetramethyl-1,10 phenanthroline); vpy = 4-vinylpyridine) were prepared and their morphologies were studied by transmission electron microscopy (TEM). Multiple morphologies of aggregates from these ReI polymers were obtained by using different solvents. Energy transfer between  MLCTRe® tmphen and MLCTRe® NO2-phen excited states inside the polymers was evidenced by steady state and time resolved spectroscopy. Current Förster resonance energy transfer theory was successfully applied to energy transfer processes in these polymers.