Synthesis of a vinylcarbynetetrairon complex. Crystal and molecular structure of [(C 5H 5) 2(CO) 2Fe 2(μ-CO)] 2- (μ-C 5H 3) +BF 4−

Abstract

The diiron vinyl ether carbyne complex [(C 5H 5)(CO)Fe] 2(μ-CO)- (μ-CCHCHOCH 2CH 3) + BF 4 − (1) reacted with the diiron ethenylidene complex [(C 5H 5)(CO)Fe] 2(μ-CO)(μ-CCH 2) (2) to yield the tetrairon complex [(C 5H 5) 2(CO) 2Fe 2(μ-CO)] 2(μ-C 5H 3 +BF 4 − (3) which was characterized by spectroscopy and by single crystal X-ray diffraction.