The synthesis and characterization of aluminum, gallium and zinc formamidinates

Reactions of the formamidinate ligand, RN(H)C(H)NR, LH, (R = 2,6-diisopropylphenyl), with AlMe3, AlMe2Cl, GaMe3 and ZnEt2 were investigated to examine potential coordination modes of the ligand and the effect of hydrolysis on the products. Nine new complexes have been fully characterized by X-ray crystallography and other spectroscopic techniques and highlight the diverse coordination modes of the formamidinate ligand.

Nine aluminum, gallium and zinc complexes with the bulky formamidinate ligand RN(H)C(H)NR, (R = 2,6-diisopropylphenyl), have been synthesized and characterized. The monodentate, bidentate chelating, and bimetallic bridging coordination modes of the ligand are observed, as well as mono- and di-oxygenated tetranuclear zinc clusters and an Al3 hydroxide cluster supported by two formamidinate ligands.Figure optionsDownload as PowerPoint slide