Neutral and Cationic Complexes of Silicon(IV) Halides with Phosphine Ligands.

ABSTRACT: The reaction of SiI₄ and PMe₃ in n-hexane produced the yellow salt, [SiI₃(PMe₃)₂]I, confirmed from its X-ray structure, containing a trigonal bipyramidal cation with trans-phosphines. This contrasts with the six-coordination found in (the known) trans-[SiX₄(PMe₃)₂] (X = Cl, Br) complexes. The diphosphines o-C₆H₄(PMe₂)₂ and Et₂P(CH₂)₂PEt₂ form six-coordinate cis-[SiI₄(diphosphine)], which were also characterized by X-ray crystallography, multinuclear NMR, and IR spectroscopy. Reaction of trans-[SiX₄(PMe₃)₂] (X = Cl, Br) with Na[BAr

SUBMITTER: King RP 

PROVIDER: S-EPMC9597660 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature