P. Winklebauer. Chemical Formula = [ Cu { ( P ( CH3 )(C6H5)2) }3
( BH4) ]
The structure has the unique feature of a hydrogen (from the tetrahydroborate anion)
being bonded to copper, i.e., the tetrahydroborate anion is attached to copper
through a hydrogen bridge bond. The Cu to bonded-hydrogen distance is 1.47
Angstroms. The overall structure is approximately tetrahedral, but P - Cu
- P bond angles are larger than expected due to steric repulsion of the phenyl
groups.