Spectroscopic and photophysical properties of ZnTPP in a room temperature ionic liquid.

摘要: The steady-state absorption and emission spectra the time-resolved Soret- Q-band excited fluorescence profiles of model metalloporphyrin, ZnTPP, have been measured in a highly purified sample common room temperature ionic liquid, [bmim][PF6]. S2−S0 resulting from Soret-band excitation behaves manner completely consistent with that molecular solvents same polarizability. nature solvent its slow solvation relaxation times no significant effect on radiationless decay S2 state, which decays quantitatively to S1 at population rate is weak coupling case transition theory (energy gap law). ratio intensities Qα:Qβ (0−0:1−0) bands solvatochromic shift correlation data obtained for solvents. temporal single wavelength are biexponential; longer-lived major compone...