Method for preparation of organo-tellurium and selenium compounds

摘要

Methods for the preparation of a tellurium or selenium compound of formula Ra M Rb wherein M is tellurium or selenium and Ra and Rb are different C1-20 alkyl, alkenyl or aryl groups are provided in which a compound of formula (Ra)2M2 is reacted with a compound of formula (Rb)2M in each compound M being the same. Compounds of formula RaMMRb may also be isolated as an intermediate. Ra M Rb compounds are useful as precursors for metal organic vapor phase epitaxy processes.