THE ELECTRONIC-STRUCTURE OF ORGANOMETALLIC COMPLEXES OF THE F-ELEMENTS .36. PARAMETERIZATION OF THE CRYSTAL-FIELD SPLITTING PATTERN OF (CH3OCH2CH2C5H4)3SMIII

The absorption and luminescence spectra of (CH3OCH2CH2C5H4)3Sm(III) (Cp3'Sm) in hydrocarbon glasses and in KBr pellets have been measured at room and low temperatures. The bands were assigned assuming comparable crystal field splitting patterns for Cp3'Sm and for the previously analyzed Cp3Sm(NCCH3)2. The parameters of an empirical Hamiltonian were fitted to the energies of 42 levels to give an rms deviation of 42 cm-1. Making use of the calculated wave functions and eigenvalues, the experimentally determined low temperature magnetic susceptibility of powdered Cp3'Sm could be simulated.