X-Ray crystal and molecular structure of [Et2NCFe(CO)3]2: an example of the division of an alkyne into two separate units by rupture of the CC bond

Abstract

X-Ray crystallography of the complex [Et₂NCFe(CO)₃]₂ obtained from Fe(CO)₅ and Et₂NCCNEt₂ indicates rupture of the carbon–carbon triple bond during the formation of this iron complex to give two separate bridging Et₂NC (diethylimmoniocarbene) units.