Ray Structural Data of Tetrahydroborates

This section describes the structures of tetrahydroborate compounds. The format is similar to that presented in the earlier treatment in Boron Compounds 3rd Suppl. Vol. 1, 1987, pp. 30/1, and Boron Compounds 2nd Suppl. Vol. 1, 1983, p. 20. 

The unusual structure described above was observed previously for the dicobalt complex [(C6H5)2P(CH2)5P(CeH5)2]Co(BH4) 2-0.5C6He. The species contains two (C6H5)2P(CH2)5P- 

BH4 group and the terminal hydrogen form an octahedral environment about iron 

BH4 bridges two ruthenium atoms (each of them connected with three phosphorus atoms) giving octahedral symmetry around the ruthenium atoms. Each phosphorus atom is trans to [i-H or terminal-H 

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