Synthesis of Exceptionally Stable Iron and Ruthenium η1 -tetrahedro-Tetraphosphorus Complexes: Evidence for a Strong Temperature Dependence of M-P4 π Back Donation

Isaac de Los Rios; Jean-René Hamon; Paul Hamon; Claude Lapinte; Loïc Toupet; Antonio Romerosa; Maurizio Peruzzini

doi:10.1002/1521-3773(20011015)40:20<3910::AID-ANIE3910>3.0.CO;2-2

Synthesis of Exceptionally Stable Iron and Ruthenium η¹ -tetrahedro-Tetraphosphorus Complexes: Evidence for a Strong Temperature Dependence of M-P₄ π Back Donation

Angew Chem Int Ed Engl. 2001 Oct 15;40(20):3910-3912. doi: 10.1002/1521-3773(20011015)40:20<3910::AID-ANIE3910>3.0.CO;2-2.

Authors

Isaac de Los Rios¹, Jean-René Hamon², Paul Hamon², Claude Lapinte², Loïc Toupet², Antonio Romerosa³, Maurizio Peruzzini¹

Affiliations

¹ Istituto per lo Studio della Stereochimica ed Energetica dei Composti di Coordinazione, CNR Via J. Nardi 39, 50132 Firenze (Italy) Fax (+39) 055-2478366.
² Université de Rennes 1, UMR CNRS 6509 35042 Rennes (France) Fax: (+33) 99-28-67-00.
³ Área de Quimica Inorganica, Universidad de Almería 04071, Almería (Spain).

PMID: 29712122
DOI: 10.1002/1521-3773(20011015)40:20<3910::AID-ANIE3910>3.0.CO;2-2

Abstract

At variance with white phosphorus, the most reactive allotrope of the element, which is unstable and ignites spontaneously in air, the new η¹ -tetrahedro-tetraphosphorus complexes [Cp*M(PR₃ )₂ (η¹ -P₄ )]Y (M=Fe, Ru; Y=Cl, PF₆ , BPh₄ , BAr$\rm{^{\prime }_{4}}$; Cp*=C₅ Me₃ the structure of the [Cp*Fe(Ph₂ PCH₂ CH₂ PPh₂ )(η¹ -P₄ )]⁺ ion is depicted) exhibit a surprising and unprecedented thermal stability and an astonishing reluctance to react with oxygen and other oxidants.

Keywords: cyclopentadienyl ligands; iron; phosphorus; ruthenium; structure elucidation.