The phosphinomethylsilyl group as a bifunctional bridging ligand. X-Ray crystal structure of hexacarbonylbis(µ-diphenylphosphino-methyldimethylsilyl)diruthenium(II), and of its reaction product with trifluoroacetic acid, a mononuclear ruthenium(II) complex incorporating a unique co-orinated silanol

Abstract

Reaction between Ru₃(CO)¹² and Ph₂PCH₂SiMe₂H affords the symmetrical bridged diruthenium complex [R[graphic omitted]Me₂)₂(CO)₆] in which Ru–Ru = 3.056(1)Å; treatment of this dimer with CF₃CO₂H leads to formation of a mononuclear phosphinomethyldimethylsilanol complex [R[graphic omitted]H)(CO)₂(CO₂CF₃)₂·Et₂O] in which Ru–O_Si= 2.19 Å, δ(OH)= 12.12, and the solvating Et₂O molecule is H-bonded to the silanol-O with O ⋯ O 2.64 Å.