Novel Photo-excited Triplet State Arising from Four Unpaired Electrons: π-Topology and Spin Alignment in Excited State of Organic Spin System
2004; Oxford University Press; Volume: 33; Issue: 11 Linguagem: Inglês
10.1246/cl.2004.1500
ISSN1348-0715
Autores Tópico(s)Synthesis and Properties of Aromatic Compounds
ResumoAbstract A novel photo-excited state with the intermediate spin (S = 1) arising from four unpaired spins and a nearly degenerate quintet (S = 2) excited state were detected for 1, which was designed utilizing the photo-excited triplet spin coupler by taking π-topology into account. The unique triplet state has an interesting electronic structure, which D value is reduced by the antiferromagnetic spin alignment between two radical spins through the excited spin coupler.
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