Abstract
Spectral and kinetic parameters were studied for phosphine-bipyridyl ruthenium(II) complexes, namely, cis-[Ru(Bipy)2(PPh3)X](BF4), cis-[Ru(Bipy)(Dppe)X2], and cis-[Ru(Bipy)(Dppene)X2] (where Bipy is 2,2"-bipyridyl, PPh3is triphenylphosphine, Dppe is 1,2-bis(diphenylphosphino)ethane, and Dppene iscis-1,2-bis(diphenylphosphino)ethylene; X = CN–, NO2–), in the frozen (77 K) alcohol glasses (EtOH–MeOH, 4 : 1). The energies of the singlet and triplet metal-to-ligand charge transfer states dπ(Ru) → π*(Bipy) were found to increase in the order [Ru(Bipy)2X2] < [Ru(Bipy)2(PPh3)X]+< [Ru(Bipy)(Dppe)X2] < [Ru(Bipy)(Dppene)X2]. The luminescence quantum yields and the rate constants of the nonradiative deactivation of the lowest excited state 3MLCT increase in the same order.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
