Abstract
Laser-induced fluorescence excitation spectra of zinc tetrabenzoporphyrin in seeded, pulsed, supersonic expansions of He reveal well-resolved vibrational excitations for the S0→S1 and S0→ S2 electronic transitions. Electronic relaxation in the S1 manifold was interrogated by time-resolved spectroscopy, exhibiting a practical independence of the lifetimes on the excess vibrational energies in the range Ev = 0-10000 cm-1. Spectroscopic line broadening data provided semiquantitative information on interstate electronic relaxation from the electronic origin of the S2 state, whose lifetime is τ(S 2) > 4 ps.
Original language | English |
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Pages (from-to) | 4384-4390 |
Number of pages | 7 |
Journal | The Journal of Chemical Physics |
Volume | 77 |
Issue number | 9 |
DOIs | |
State | Published - 1982 |