Lanthanide tetrahydroborate complexe

A metathesis reaction is a convenient route to lanthanide tetrahydroaluminate and lanthanide tetrahydroborate complexes. Using tetrahydroaluminate complexes as the hydride source, a number of structurally characterized lanthanide tetrahydroaluminate complexes are prepared via metathesis reactions in the presence of an excess of a Lewis base (Equation 8.24) [79]. Metathesis reaction of organolanthanide chlorides with alkali metal tetrahydroborate generates the corresponding lanthanide tetrahydroborate. The same reaction with sodium hydride in THE is reported to afford a lanthanide hydride however, no molecular structure for the hydride has been presented up till now. 

Covalent transition metal lanthanide and actinide tetrahydroborate complexes. T. J. Marks and... 

Marks, T. J., Kolb, J. R. Covalent transition metal, lanthanide, and actinide tetrahydroborate complexes. Chem. Rev. 1977, 77, 263-293. 

The reaction of (C9H7)2LnCl(THF) with NaH in THF generates the dimeric bis(indenyl)lanthanide hydrides [(C9H7)2Ln(/r-H)]2 4THF-NaCl.695 The stereoselective synthesis and structural characterization of raf-planar chiral bis(2-methoxyethylindenyl)lanthanum and yttrium tetrahydroborate complexes has been achieved. The complexes... 

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