1258211-65-2Relevant academic research and scientific papers
Gallium-gallium bonds bridged by functionalized carboxylato ligands
Uhl, Werner,Bock, Henrik R.,Koesters, Jutta,Voss, Matthias
, p. 1851 - 1859 (2011/01/10)
Treatment of the tetraalkyldigallium compound R2Ga-GaR 2 [R = CH(SiMe3)2] (1) with a large number of different functionalized carboxylic acids afforded dicarboxylatodigallium compounds R2Ga2(μ- O2C-R)2, in which two carboxylato ligands bridge the Ga-Ga bonds. The chelating ligands have additional nitrogen, oxygen or phosphorus donor atoms and may be suitable to act as Lewis-bases to yield supramolecular aggregates in future investigations. Four compounds havebeen characterized by crystal structure determinations. One gave unprecedented dimeric formula units in the solid state by Ga-N interactions. The similar reaction with isonicotinic acid resulted in the cleavage of the Ga-Ga bond. A tetragallium compound was formed in which four isolated metal atoms were bridged by four organic ligands to give a square molecular core.
