81380-34-9

Basic information

• Product Name: ((C₆H₅)3P)2(CH₂C(CH₃)C(H)CH₂)ReH₃
• CAS NO: 81380-34-9
• Molecular Weight: 781.931
• Mol File: 81380-34-9.mol

Chemical Properties

• CAS DataBase Reference: ((C₆H₅)3P)2(CH₂C(CH₃)C(H)CH₂)ReH₃(CAS DataBase Reference)
• NIST Chemistry Reference: ((C₆H₅)3P)2(CH₂C(CH₃)C(H)CH₂)ReH₃(81380-34-9)
• EPA Substance Registry System: ((C₆H₅)3P)2(CH₂C(CH₃)C(H)CH₂)ReH₃(81380-34-9)

Safety Data

• Hazardous Substances Data: 81380-34-9(Hazardous Substances Data)

Upstream product

• 12103-40-1 bis(triphenylphosphine)-rhenium heptahydride 
• 78-78-4 methylbutane 
• 78-79-5 isoprene 

Relevant articles and documents

REACTION OF (PPh3)2ReH7 WITH DIENES: PREPARATION AND SOME PROPERTIES OF TRIHYDRO η4-DIENE COMPLEXES OF RHENIU

L2ReH7 (L=PPh3) reacts smoothly with acyclic and cyclic dienes to give crystalline, air-stable, trihydrido-Η4-dienerhenium complexes L2(η4-diene)ReH3.The majority of these complexes are fluxional at room temperature; their NMR spectra suggest that at low temperature (-50 deg C) they are pentagonal bipyramidal, with the two phosphine ligands apical and the remaining ligands equatorial.Except for L2(η4-cyclopentadiene)ReH3, which readily loses dihydrogen to give L2(η5-C5H5)ReH, these diene trihydrides are thermally remarkably stable; L2(η4-cyclohexa-1,3-diene)ReH3 loses dihydrogen at >100 deg C to afford L2(η5-cyclohexadienyl)ReH2 and then L2(η6-C6H6)ReH, and L2(η4-butadiene)ReH3 and L2(η4-cycloocta-1,5-diene)ReH3 are stable in air up to 115 and 130 deg C, respectively.Protonation of the trihydrido-η4-diene complexes affords the corresponding saturated hydrocarbons and/or olefins.Hydrogenation of L2(η4-2,3-dimethylbutadiene)ReH3 regenerates the heptahydride L2ReH7.

Activation des alcanes en catalyse homogene

The first part briefly reports the ionic and radical reactions of satureted hydrocarbons by soluble transition metal complexes.In the second part are described the reactions involving the oxydative addition of a CH bond onto a coordinatively unsaturated organometallic species.The catalytic and selective dehydrogenation of alkanes by rhenium hydrides is presented in the last part.