Preparation of a stable small ferraborane, B4H8Fe(CO)3
Abstract
The orange liquid B4H8Fe(CO)3 has been prepared by direct reaction of pentaborane(9) with iron pentacarbonyl and also by the reaction of tetraborane(10) with enneacarbonyldi-iron; spectroscopic evidence shows that the Fe(CO)3 group has replaced the apex BH group in B5H9 and that the compound has structural and bonding affinities with C4H4Fe(CO)3 and C[Fe(CO)3]5.