Abstract
Relaxation of electronic excited-state and vibrational dynamics in the electronic excited state in RuII(TPP)(CO) [TPP=tetraphenylporphyrin] dissolved in N2 bubbled benzene, O2 bubbled benzene, N2 bubbled chloroform and N2 bubbled acetone were clarified using a sub-5fs laser pulse. The result showed that the transition energy from the 1Qx states, consisting of the 1Qx(1,0)(π,π*) state (existing at 18800 cm−1) and 1Qx(0,0)(π,π*) state (existing at 17800 cm−1), to the 1M state of six-coordinated ruthenium complex is lower than that of the five-coordinated ruthenium complex. The intersystem crossing 1Qx(0,0)(π,π*)→3(d,π*) in the five-coordinate RuII(TPP)(CO) in the solution was found to take place in about 1 ps.
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Iwakura, I., Yabushita, A. & Kobayashi, T. Solvent effect for ruthenium porphyrin. Sci. China Phys. Mech. Astron. 53, 1005–1012 (2010). https://doi.org/10.1007/s11433-010-3212-1
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DOI: https://doi.org/10.1007/s11433-010-3212-1