The ambiguous behaviour of diphosphines towards the quasilinear iron(<scp>i</scp>) complex [Fe(N(SiMe<sub>3</sub>)<sub>2</sub>)<sub>2</sub>]<sup>−</sup> – between inertness, P–C bond cleavage and C–C double bond isomerisation
C. Gunnar Werncke, Igor Müller
Abstract
Chelating phosphines are widely used as robust and reliable ligands in catalysis. We show that the anionic iron(i) complex [FeI(N(SiMe3)2)2]- is able to selectively cleave a P-aryl bond of 1,2-bis(diphenylphosphino)benzene. Furthermore, the related cis-1,2-bis(diphenylphosphino)-ethylene (dppee) binds not to the P donors but to the ethylene unit, and is (catalytically) transformed to the trans-isomer.
Topics & Concepts
DiphosphinesChemistryBondCrystallographyCatalysisBusinessOrganic chemistryFinanceOrganometallic Complex Synthesis and CatalysisSynthesis and characterization of novel inorganic/organometallic compoundsAsymmetric Hydrogenation and Catalysis