Eine pentagonal pyramidale Koordination des Bismuts. Kristallstruktur von Methylbismutbis( diethyldithiocarbamat) / A Pentagonal Pyramidal Coordination of Bismut. Crystal Structure of Methylbismuthbis( diethyldithiocarbamate)

Abstract

Abstract Methylbismuth-bis(diethyldithiocarbamate), X-ray The crystal structure of the title compound, recrystallized from ethanol, was solved by means of X-ray diffraction methods and could be refined to an i?-value of 0.050 with 2126 reflections observed. In contrast to its behaviour in benzene solution, where the compound is monomeric, in the crystalline state dimeric units are formed by intermolecular Bi-S-interactions. The bismuth atoms are coordinated in form of a slightly distorted pentagonal pyramid with the free electron pair presumably directed opposite the apical C-atom.