Abstract

Heating of a solution of [(Dpp-bian)GaH2] (I) (Dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) in pyridine leads to elimination of a hydrogen atom and reduction of the diimine ligand to dianion, resulting in the complex [(Dpp-bian)GaH(Py)] (II). The reaction of I with 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (i-Pr2ImMe) is accompanied by a similar process, with the reaction product being identified as [(Dpp-bian)GaH(i-Pr2ImMe)] (III). Diamagnetic derivatives II and III were characterized by 1H NMR spectroscopy. The molecular structure of compound II was established by X-ray diffraction (CIF file CCDC no. 1973549).

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