No abstract

No abstract

The first rare earth carbonyls have been prepared by codeposition of neodymium and ytterbium atoms with carbon monoxide in argon matrices. The new rare earth carbonyls were detected by infrared spectroscopy. The final product of the neodymium reaction was assigned to Nd(CO)6 and infrared absorptions were assigned for the lower carbonyls Nd(CO), _s.No assignment of the ytterbium data was made.

The spectrum of V isolated in Ar and Kr matrices at 10°K has been correlated with the gas phase spectrum. The electron configuration was found to be a major factor in determining the direction and the magnitude of the matrix shift for this system. A model calculation was performed using extended Hückel theory. A plausible explanation for the origin of the matrix shifts and the altered intensity relationships observed in the matrix has been developed.