Methane complexes containing

The acetyl-coenzyme A decarbonylase synthase complex contains five polypeptide sub-nnits and in acetate-degrading methanotrophs, such as Methanosarcina barkeri and M. thermophila, catalyzes the formation of methane and COj from acetyl-CoA ... 

Another structurally well characterized rhodium complex containing the phosphino(stibino)methane ligand as a chelate is [H3Rh2(r 2-C)2CCF3)2 r 2-(z -Pr)2P-CH2-Sb(z-Bu)2 2]PF6.101... 

Other cationic Ir(I) complexes containing the bidentate ligands, such as bis(l-pyrazolyl)methane (BPM) and bis(3,5-dimethyl-l-pyrazolyl)methane (dmBPM), that is [Ir(BPM)(CO)2] [BPli4p and [Ir(dmBPM)(CO)2] BPh4]T were also reported to be effective catalysts for the alcoholysis of binary and tertiary silanes [77]. 

Nitridoosmium(VI) complexes containing facially coordinated polypyrazolyl ligands have been reported. [Os (N)(tpm)(Cl)2] (47) (tpm = tris(l-pyrazolyl)methane) is prepared in a manner... 

Reactions and Structures of Palladium Complexes Containing Bis(diphenylphosphino)methane as a Bridging Ligand... 

A strictly related example of multiple bond metathesis chemistry between C02 and isocyanides proceeds from the binuclear complex Ni2( x-CNMe)(CNMe)2(dppm)2 (dppm = l,2-bis(diphenylphosphino)methane) which contains a reactive g-MeNC ligand [111d—f]. This species, in the presence of liquid C02 (298 K, 10-15MPa, >48h), was converted into Ni2( X-CO)(CO)2(dppm)2 and polymeric... 

Commonly accepted mechanisms of the MMO reactions are based on the concept of the activation of dioxygen or the use of shunts such as H202. Nevertheless, the new mechanism of methane oxidation via an intermediate complex containing pentacoordinated carbon has been forwarded (Shilov, 1997, Karasevich et al 1998, 1999). This suggestion is based on experiments on the multiple H-D exchange and methane oxidation catalyzed by platinum (II) complexes, ([H2PtCl6], for instance). Formation of methyl platinum (IV) chloride complex in methane oxidation was confirmed by its NMR spectrum. 

Calculations show that for M = [CpIrin(PH3)(Me)]+ the oxidative addition mechanism A is the low-energy pathway, while Rhm may adopt path B.132 With complexes containing very labile ligands, such as the 171 -dichloromethane complex [Cp (PMe3)IrMe(ClCH2Cl)]+, methane activation takes place under very mild conditions and at temperatures as low as 10°C, while benzene adds rapidly at -30°C.133... 

Organic chemistry is the chemistry of compounds that contain C—C or C—H bonds. Why is one entire branch of chemistry devoted to the behavior of the compounds of just one element The answer is twofold (1) There are many more compounds that contain carbon than there are compounds that do not (more than 11 million organic compounds have been identified), and (2) the molecules containing carbon can be so much larger and more complex (a methane molecule contains five atoms per molecule and DNA contains tens of billions of atoms per molecule). 

The first well-characterized example of oxidative addition of the unreactive C—H bond of an alkane was based on Ir complexes containing a Cp ligand (eq (72) and (73) [82,83,51]. Photoirradiation is needed to create active lrCp L species. However, a cationic complex [IrCp (PMe3)(Me)(ClCH2Cl)] [B(Arf)4]" can thermally activate methane and alkane at 10 °C (eq (74)) [84]. 

Complexes containing TEED, BMED, and DMMED are soluble in dichloro-methane, chloroform, acetone, and benzene. They also are moderately soluble in methanol and diethyl ether and insoluble in alkanes. In solutions made from chlorinated solvents or acetone, these complexes decompose within 1-6 hours to an unidentified intermediate. Yellow-green, well-formed crystals of the corresponding [PtCl2(diamine)] complexes separate after 2-3 days at room temperature in a nearly quantitative yield. A remarkably slower decomposition process is observed in benzene solution. 

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