The kinetics of low temperature transformations of samarium complexes with1,3,5-tri-tert-butylbenzene in the solid phase

Zerovalent samarium complexes with 1,3,5-tri-tert-butylbenzene were obtaine d by low temperature codeposition of metal and ligand vapours on the cold ( 77 K) surface under vacuum. The formation of two complexes was stated. The kinetics of thermal decomposition of complex with characteristic band at 96 7 cm(-1) was investigated. It was shown that the retarded kinetics takes pl ace. An effective activation energy was calculated from the initial rates. Its value is 8 kJ/mol. which is typical for diffusion controlled reaction.