High pressure luminescence studies of metalloporphyrins in polymeric media

摘要: High pressure luminescence measurements have been made on free base tetraphenylporphyrin (H2–TPP), as well Zn–TPP, Mg–TPP, Cr–TPP, and Cu–octaethylporphyrin (Cu–OEP), in PMMA PS. In the case of H2–TPP, Mg–TPP efficiency fluorescence phosphorescence (Zn–TPP) was dependent relative energy excited singlet triplet states. The transfer rates calculated, it shown that is limited by intersystem crossing while both radiationless S1→T1 T1→S0. rate scaled very with S1–T1 difference, T1→S0 T1–S0 difference. Cu–OEP Cr–TPP only observed from two At low comes mainly high state (2T1), at pressures (4T1). excitation maximum found to be stron...