Reactivity of nido-[2-{Fe(η-C₅H₅)}B₅H₁₀] with some transition-metal hydride complexes

Metal fragment exchange from a molybdaborane to a tungstaborane

“…The 1 H{ 11 B} NMR spectrum of (II) clearly sharpens four new resonances in a ratio 2:1:2:2 compared with the 1 H NMR spectrum. These [23]. Interestingly, in the same paper, reaction of nido-2-[Fe(g-C 5 H 5 )B 5 H 10 ] with [W(PMe 3 ) 3 H 6 ], the same phosphine hydride molecule as in the present study, does not give borane fragment exchange but instead leads to capped-closo-1-…”

Formation of ferraboranes from pentaborane(9) or BH3·thf and an electron-rich cyclopentadienyl iron phosphine hydride

“…The two-step synthesis of 1 from FeCl 2 in 15% is now possible on a large scale. This allows for a systematic study of its chemistry to be undertaken [17]. Further elution of the column gave a second brown band, which decomposed slowly on the column forming 1 and an immovable yellow band.…”

“…-H 2 ] + [(g 5 -C 5 H 5 )-nido-2-FeB 5 H 9 ] À[17]. Likewise 7 deprotonates to give pink-red [(g 5 -C 5 Me 5 )-nido-2-FeB 5 H 9…”

Reactions of pentaborane(9) with electron-rich molybdenum and tungsten phosphine polyhydrides

“…For example, the reaction of pentaborane (9) with [Fe(PMe 3 [6]. We have also reported the reaction of the tungsten complex [W(PMe 3 ) 3 H 6 ] with metallaboranes to give novel metallaborane clusters [7,8]. We decided to extend the study to the reaction of pentaborane (9) with electron-rich phosphine polyhydrides of tungsten and molybdenum.…”