Synthesis of small nido-ferrapentaboranes; a novel borane-capped nido-diferrapentaborane
Abstract
Pentaborane(9) reacts with [Fe(PMe3)3(η2-CH2PMe2)H] to give [2,3-{Fe(PMe3)2}2(µ-H)B4H9](1) and [2-{Fe(PMe3)3}B4H8](2) in yields of up to 1 and 22% respectively; the X-ray crystal structure of (1) shows a nido-pentaborane(9) structure in which a BH3 fragment caps the Fe2B face.