126971-98-0Relevant articles and documents
A Ni0(η2-(Si-H))(η2-H2) Complex That Mediates Facile H Atom Exchange between Two σ-Ligands
Connor, Bridget A.,Rittle, Jonathan,Vandervelde, David,Peters, Jonas C.
, p. 686 - 690 (2016)
σ-adduct complexes of low-valent, late first-row metal complexes are highly unusual, and this is particularly true of d10 systems. We have discovered a nickel/phosphine/silyl system that undergoes reaction with H2 in solution to gene
Hydrogenation and silylation of a double-cyclometalated ruthenium complex: Structures and dynamic behavior of hydrido and hydridosilicate ruthenium complexes
Scherl, Peter,Wadepohl, Hubert,Gade, Lutz H.
, p. 4409 - 4415 (2013/09/02)
A double-cyclometalated ruthenium complex containing a chiral tripodal phospholane has been prepared by reaction with [Ru(η4-COD) (η3-methylallyl)2] via elimination of isobutene. The ruthenium-carbon bonds of this compound were reversibly cleaved by H 2, resulting in an equilibrium between a tri- and a tetrahydride (4 and 5). T1 relaxation time measurements revealed the nonclassical nature of the fluctuating hydrides. Release of the gas led to complete re-formation of the cyclometalated compound. Reaction of 3 with D2 afforded D10-5, in which six ortho-phenyl protons and four hydrides were replaced by deuterium. Furthermore, diphenylsilane was found to readily insert into one Ru-C bond to form 6, containing a κ3- dihydridosilicate fragment. On the basis of deuterium labeling experiments, the fast exchange between the two hydrides was shown to include a reductive elimination/oxidative addition step involving the remaining metalated phenyl group. Again, pressurization of 6 with H2 resulted in reversible cleavage of the remaining Ru-C bond, yielding the corresponding trihydride 7.
