330458-72-5Relevant academic research and scientific papers
Synthesis, structure, and reactivity of η1- and η3-allyl rhenium carbonyls
Aechter, Bernd,Polborn, Kurt,Beck, Wolfgang
, p. 43 - 54 (2001)
In (η3-C3H5)Re(CO)4 one CO ligand can be substituted by PPh3, pyridine, isocyanide and benzonitrile. With 1,2-bis(diphenylphosphino)ethylene, 1,1′-bis(diphenylphosphino)ferrocene and 1,2-bis(4-pyridyl)ethane dinuclear ligand bridged complexes are obtained. The η3-η1 conversion of the allyl ligand occurs on reaction of (η3-C3H5)Re(CO)4 with the bidendate ligands 1,2-bis(diphenylphosphino)ethane and 1,3-bis(diphenylphosphino)propane and with 2,2′-bipyridine (L-L) which gives the complexes (η1-C3H5)Re-(CO)3(L-L). By reaction of (η3-C3H5)Re(CO)4 with bis(diphenylphosphino)methane the allyl group is protonated and under elemination of propene the complex (OC)3Re(Ph2PCHPPh2)(η1-Ph 2PCH2PPh2) (19) with a diphosphinomethanide ligand is formed. On heating solutions of (η3-C3H5)Re(CO)4 and (η3-C3H5)Re(CO)3(CN-2,5-Me 2C6H3) (5) in methanol the methoxy bridged compounds Re4(CO)12(OH)(OMe)3 and Re2(CO)4(CN-2,5-Me2C6H 3)4-(μ-OMe)2 (20) were isolated. The crystal structures of (η3-C3H5)Re(CO)3(CNCH 2SiMe3) (4), [(η3-C3H5)(OC)3Re] 2-(μ-bis-(diphenylphosphino)ferrocene) (8), (η1-C3H5)Re(CO)3-(bpy) (14), of 19, 20 and of (OC)3Re-[Ph2P(CH2)3PPh 2]Cl (16) were determined by X-ray diffraction. WILEY-VCH Verlag GmbH, 2001.
