Fluorescence resonance energy transfer (FRET) in the Solution Phase Photophysics of -Re(CO)3L+ Pendants Bonded to Poly(4-vinylpyridine)

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

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY

American Chemichal Society

Año: 2008 vol. 112 p. 11506 - 11516

1011-1344

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 MLCTReftmphen and MLCTRefNO2-phen excited states inside the polymers was evidenced by steady state and time-resolved spectroscopy. Current Fo¨rster resonance energy transfer theory was successfully applied to energy transfer processes in these polymers.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 MLCTReftmphen and MLCTRefNO2-phen excited states inside the polymers was evidenced by steady state and time-resolved spectroscopy. Current Fo¨rster resonance energy transfer theory was successfully applied to energy transfer processes in these polymers.) 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 MLCTReftmphen and MLCTRefNO2-phen excited states inside the polymers was evidenced by steady state and time-resolved spectroscopy. Current Fo¨rster resonance energy transfer theory was successfully applied to energy transfer processes in these polymers.I polymers were obtained by using different solvents. Energy transfer between MLCTReftmphen and MLCTRefNO2-phen excited states inside the polymers was evidenced by steady state and time-resolved spectroscopy. Current Fo¨rster resonance energy transfer theory was successfully applied to energy transfer processes in these polymers.Reftmphen and MLCTRefNO2-phen excited states inside the polymers was evidenced by steady state and time-resolved spectroscopy. Current Fo¨rster resonance energy transfer theory was successfully applied to energy transfer processes in these polymers.