Author/Authors :
Yamauchi، نويسنده , , Seigo and Tanabe، نويسنده , , Mana and Ohba، نويسنده , , Yasunori and Sugisaki، نويسنده , , Kenji and Toyota، نويسنده , , Kazuo and Sato، نويسنده , , Kazunobu and Takui، نويسنده , , Takeji and Saltsman، نويسنده , , Irena، نويسنده ,
Abstract :
The lowest excited triplet state of free-base 5,10,15-trispentafluorophenylcorrole (H3Cor) was studied in rigid glass by time-resolved electron paramagnetic resonance (TR-EPR) spectroscopy. Triplet sublevels were experimentally determined by using magnetophotoselection and liquid crystal. Quantum chemical calculations of zero-field splitting parameters D and E were used for the sublevel assignment. The out-of-plane sublevel Tz was found to be the lowest; namely, D is positive for H3Cor, in contrast to previous reports. The origin of the difference is discussed in detail. Preliminary TR-EPR experiments on rhodium corrole, accompanied by the quantum chemical calculations, emphasize the important contribution of spin-orbit couplings.
