Übergangsmetall‐Silyl‐Komplexe, 44. Darstellung der zweikernigen Silyl‐Komplexe (CO) 3 (R 3 Si)Fe(μ‐PR′R′′)Pt(PPh 3 ) 2 durch oxidative Addition von (CO) 3 (R′R′′HP)Fe(H)SiR 3 an (C 2 H 4 )Pt(PPh 3 ) 2

Autor:	Herbert D. Kaesz, Ulrich S. Schubert, Pierre Braunstein, Alfred A. Zinn, Michael Knorr, Saeed I. Khan, Georg Reinhard, Charles E. Strouse
Rok vydání:	1993
Předmět:	Inorganic Chemistry chemistry.chemical_compound Addition reaction Diphenylphosphine chemistry Transition metal Silylation Stereochemistry Ligand Crystal structure Triphenylphosphine Medicinal chemistry Oxidative addition
Zdroj:	Chemische Berichte. 126:17-21
ISSN:	0009-2940
DOI:	10.1002/cber.19931260104
Popis:	Transition Metal Silyl Complexes, 44. — Preparation of the Binuclear Silyl Complexes (CO)3(R3Si)Fe(μ-PR′R′′)Pt(PPh3)2 by Oxidative Addition of (CO)3(R′R′′HP)Fe(H)SiR3 to (C2H4)Pt(PPh3)2 The complexes (CO)3(R′R′′HP)Fe(H)SiR3 (1) [PHR′R′′ = PHPh2, PH2Ph, PH2Cy; SiR3 = SiPh3, SiPh2Me, SiPhMe2, Si(OMe)3] react with Pt(C2H4)(PPh3)2 to give the dinuclear, silyl-substituted complexes (CO)3(R3Si)Fe(μ-PR′R′′)Pt(PPh3)2 (2) in high yields. Upon reaction of 2 (R = R′ R′′ = Ph) with CO, the PPh3 ligand at Pt being trans to the PPh2 bridge is exchanged, and (CO)3(Ph3Si)Fe(μ-PPh2)Pt(PPh3)CO (3) is formed. Complex 3 is characterized by an X-ray structure analysis. The rather short Fe — Si distance [233.9(2) pm] and the infrared spectrum of 3 indicate that the Fe — Pt bond is quite polar.
Databáze:	OpenAIRE
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