Prediction of pressure-induced red shift of f->d(t2g) excitations in Cs2NaYCl6:Ce(3+) and its connection with bond length shortening
Quantum chemical calculations including embedding, scalar relativistic, and dynamic electron correlation effects on Cs2NaYCl6:(CeCl6)3- embedded clusters predict: (i) red shifts of the 4f->5d(t2g) transition with pressure and (ii) bond length shortening upon 4f->5d(t2g) excitation. Both effects are found to be connected which suggests that new high pressure spectroscopic experiments could reveal the sign of the bond length change.
cond-mat.mtrl-sci↗