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Distinct modes of Si-H binding to Rh in complexes of a phosphine-diarylamido-silane (SiNP) pincer ligand.

A Rain TalosigMario N CosioBenjamin MorseVinh T NguyenAlex J KosanovichChristopher J PellChun LiNattamai BhuvaneshJia ZhouAnna S LarsenOleg V Ozerov
Published in: Dalton transactions (Cambridge, England : 2003) (2022)
Syntheses of Rh complexes of the phosphine-amido-silane SiNP ligand are reported. The reaction of the parent (SiNP)H ligand (4) with 0.5 equiv. [(COE)RhCl] 2 (COE = cis -cyclooctene) in the presence of NaN(SiME 3 ) 2 resulted in the formation of (SiNP)Rh(COE) (5). Compound 5 was converted to a series of (SiNP)Rh(P(OR) 3 ) complexes 6-10 (R = Ph, i Pr, n Bu, Et, or Me) by treatment with the corresponding phosphite. NMR and XRD structural data, as well as the DFT computational analysis indicate that compounds 5-10 are divided into two structural Types ( A and B ), differing in the nature of the interaction of the Si-H bond of the SiNP ligand with Rh.
Keyphrases
  • magnetic resonance
  • high resolution
  • room temperature
  • big data
  • density functional theory
  • molecular dynamics simulations