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Updated: Oct 19, 2025

Characterizing Lewis Pairs Using Titration Coupled with In Situ Infrared Spectroscopy
Published on: February 20, 2020
A bis(imino)carbazolate pincer ligand stabilized mononuclear gallium(I) compound: synthesis, characterization, and
Hao Li1, Yuhao He1, Chunmeng Liu2
1College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China. gwtan@suda.edu.cn.
Abstract:
The first bis(imino)carbazolate pincer ligand supported mononuclear Ga(I) compound LGa: (3) was synthesized and fully characterized. Oxidation of 3 with elemental selenium afforded the dinuclear Ga(III) compound [LGa(μ-Se)]2 (4) bearing two bridging Se atoms. Ligand substitution of Cr(CO)6 with 3 under UV light irradiation afforded the gallylene-chromium complex LGa: → Cr(CO)5 (5). In addition, the attempted synthesis of the aluminium analogue LAl: through reduction of LAlI2 (7) only led to isolation of the dinuclear Al(III) compound (LAlI)2 (8), most probably formed through the C-C coupling of two imino radicals.
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