Dicobalt compounds

Prior to 2005, only six crystal structures of dicobalt compounds with short Co-Co distances had been reported [7]. This section describes advances in the field of Co-Co bonding since this time. There is a significant amount of literature on cobalt clusters containing x-acid ligands, such as carbonyls, which have Co-Co bonds. However, these types of systems are outside the scope of this book so they will not be discussed in any detail. 

Cobalt.— The dimethylgermyl-bridged dicobalt compound (31) undergoes an intramolecular rearrangement process with an activation energy of 15 kcal mol". The process is thought to be that illustrated by (32) (33)... 

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