Boron and Gallium Donors

The complex (33) showed terminal vBH bands at 2453 and 2402 cm with bridging vBH at 2141 cm h In (34), IR and Raman bands due to the coordinated BF4 units are consistent with the structure shown. There was strong splitting of the free ion band at 1050 cm and the appearance in the IR spectrum of Vg at 767 cm 

The IR spectrum of matrix-isolated methylzinc tetrahydroborate is consistent with bidentate BH4 ligands.The complex [Cd(ri -B6H6)2] shows vBH bands 

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