Synthesis of heterobimetallic group 13 compounds via oxidative addition reaction of gallanediyl LGa and InEt3

Equimolar amounts of LGa (L = [(2,6-i-Pr2-C6H3)NC(Me)]2CH) and InEt3 were found to react with insertion into the In–carbon bond and formation of LGa(Et)InEt2 (1), while in the presence of the N-heterocyclic carbene It-Bu [C(Nt-Bu2CH)2], the base-stabilized compound LGa(Et)Et2In←It-Bu (2) was formed, which shows an abnormal binding mode of the NHC group. In addition, the reaction of InEt3 with two equivalents of LGa occurred with double insertion and formation of [LGa(Et)]2InEt (3). 13 were characterized by heteronuclear NMR (1H, 13C) and IR spectroscopy, their solid-state structures were determined by single-crystal X-ray analyses, and their thermal stability was investigated by in situ NMR spectroscopy.

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Ganesamoorthy, C., Bläser, D., Wölper, C., Schulz, S., 2020. Synthesis of heterobimetallic group 13 compounds via oxidative addition reaction of gallanediyl LGa and InEt3. https://doi.org/10.1021/acs.organomet.5b00302
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