Inorganic photophysics in solution. Part 5.—Bis(8-hydroxyquinolinato)platinum(II)—absorption, excited state absorption and emission spectra, kinetics and energetics

Abstract

The spectroscopy and photophysics of bis(8-hydroxyquinolinato)platinum(II) have been examined from the following viewpoints: (i) the sharp dependence of the ground-state absorption peaks upon solvent (as indicated by a correlation of v_max with the parameter E_T), (ii) the solvent-dependence of the luminescence lifetime (which is small), (iii) the temperature-dependence (and hence the energetics) of the non-radiative decay process from the luminescent state and (iv) the discovery of an intense excited-state absorption spectrum (λ_max 565, 850 and 930 nm).