新颖的含磷基团胍基配体及其锗化合物的合成与结构研究

2-triphenylphosphine aniline hydrochloride was synthesized by using 2-chloroaniline, anhydrous nickel chloride, and triphenylphosphine as starting materials. This hydrochloride adduct was reduced by sodium naphthalenide to give 2-diphenylphosphino aniline, which reacted further with imine chloride to result in the formation of phosphino group-containing guanidine ligand o-PPh2-N(Mes)C(Ph)NHC6H4 (LH). The ligand LH was treated with equimolar n-BuLi followed by reacting with germanium(II) chloride, leading to bis(guanidine) germanium product L2Ge. Compound L2Ge has been characterized by NMR spectroscopy (1H and 31P) and X-ray single crystal diffraction, showing a square-pyramidal coordination geometry at Ge center. This study helps to understand the germanium chemistry.