Efficient Synthesis of cis-[IrCl_2(CO)_2]- Using Formic Acid as the Carbonylating Agent [Eine effektive Synthese von cis-[IrCl_2(CO)_2] - unter Verwendung von Ameisens?ure als Carbonylierungsagenz]

摘要

The reaction of hydrated iridium chloride with formic acid in refluxing ethoxyethanol afforded by an efficient way the known iridium carbonyl chlorido complex cis-[IrCl_2(CO)_2]-. The latter species was isolated and characterized as its corresponding PPN salt (PPN~+ = bis(triphenylphosphane)iminium cation). The molecular structure of PPN[IrCl _2(CO)_2] (1) was confirmed by X-ray diffraction.