Ammonia‐Borane Derived BN Fragments Trapped on Bi‐ and Trimetallic Titanium(III) Systems

다국어 초록 (Multilingual Abstract)

Titanium(III) complexes containing unprecedented (NH2BH2NHBH3)2− and {N(BH3)3}3− ligands have been isolated, and their structures elucidated by a combination of experimental and theoretical methods. The treatment of the trimethyl derivative [TiCp*Me3] (Cp*=η5‐C5Me5) with NH3BH3 (3 equiv) at room temperature gives the paramagnetic dinuclear complex [{TiCp*(NH2BH3)}2(μ‐NH2BH2NHBH3)], which at 80 °C leads to the trinuclear hydride derivative [{TiCp*(μ‐H)}3{μ3‐N(BH3)3}]. The bonding modes of the anionic BN fragments in those complexes, as well as the dimethylaminoborane group trapped on the analogous trinuclear [{TiCp*(μ‐H)}3(μ3‐H)(μ3‐NMe2BH2)], have been studied by X‐ray crystallography and density functional theory (DFT) calculations.
BN bridge: Titanium(III) complexes containing unprecedented (NH2BH2NHBH3)2− and {N(BH3)3}3− bridging ligands have been isolated by treatment of the trimethyl derivative [Ti(η5‐C5Me5)Me3] with NH3BH3.