X-Ray structure of the non-classically bonded carbonium ion [{(η5-C5H5)Fe(CO)2}2(C3H5)]+
Abstract
In the cation [{(η5-C5H5)Fe(CO)2}2(C3H5)]+, each Fe atom is joined by a strong β-bond to a CH2 group and by a weak link to the β-CH group of the allylic system.