Abstract of Publication No. 325
The exchange splittings in the ground and ligand-to-metal charge transfer (LMCT)
states of the dimer
(tmtame=1,1,1¯tris(aminomethyl)ethane) are derived from optical
absorption spectroscopy. The ground-state splitting is antiferromagnetic,
whereas the energy ordering of the lowest observed LMCT states is ferromagnetic.
This is a new situation. It is due to the dominant direct interactions between
metal-centered orbitals, which leads to a double-exchange situation in the LMCT