Aluminum(III) di- and monochlorides incorporating an N,N'-chelating iminophosphonamide ligand: synthesis and structures

Abstract

Treatment of lithium iminophosphonamide with AlCl3 in Et2O led to the formation of an aluminum(III) dichloride complex as colorless crystals. The substitution reactions of aluminum(III) dichloride stabilized by an iminophosphon- amide ligand with N- and Fe-nucleophiles gave the corresponding compounds of aluminum(III) monochloride. The reaction of the aluminum(III) dichloride complex with CpNa proceeded slowly at room temperature to form an aluminum(III) monochloride complex bearing an η1(σ)-bonded cyclopentadienyl ring.