Platinum dichlorobis!triphenylphosphine

Bis(dimethyl hydrogen phosphite-/ )bis(dimethyl phosphito-P)platinum(lI) (0.420 g, 0.66 mmole) and c/s-[dichlorobis(triphenylphosphine)platinum(ll)] (0.524 g, 0.66 mmole) are refluxed in toluene (25 mL) for 30 hours. The colorless reaction mixture is filtered while hot using vacuum to remove any unreacted c/s-[dichlorobis(triphenylphosphine)platinum(Il)]. The filtrate is transferred to a 100-mL, round-bottomed flask and evaporated to dryness on a rotary evaporator, using gentle heating if necessary. The cream-colored residue is dissolved in a mixture of dichloromethane (15 mL) and methanol (15 mL) and the solution is allowed to concentrate slowly under water aspirator vacuum on a rotary... 

The reaction of dichlorobis(triphenylphosphine)platinum(II) with Na[Co(CO)4] gives only the tetrametal cluster, Pt2Co2(PPh3)(CO)8, in a low yield.3 The corresponding trimetal cluster, PtCo2(PPh3)(CO)8,4 is obtained... 

Pinacolone, o-(diphenylphosphino)benzoyl-coordination chemistry, 401 Piperidine, IV-hydroxy-metal complexes, 797 pA a values azole ligands, 77 Plant roots amino acids, 962 carboxylic acids, 962 Plastocyanin copper binding site, 557 copper(II) complexes, 772 copper(II) site in, 770 Platinum, dichlorobis(benzonitrile)-IR spectrum, 264 Platinum, cis-dichlorodianunine-antitumor activity, 34, 979 Platinum, ethylenebis(triphenylphosphine)-reactions with 5,6-dimethyl-2,l,3-benzothiadiazole, 194 Platinum blue formation, 265 Platinum complexes acetylacetone reactions, 380 amides, 491 amidines... 

Tetrakis(triphenylphosphine)platinum(0) is a pale yellow powder which decomposes in the air to a red liquid at 118-120° and melts in vacuo (1 mm.) to a yellow liquid at 159-160°. The infrared spectrum in Nujol show s absorption maxima at 700(vs), 737(vs), 837(w), 992(s), 1022(s), 1077(vs), 1147(m), 1162(m), 1302(w), and 1432(vs) cm. h The compound is soluble in benzene with dissociation by leaving the benzene solution in the air, a white pow der [the carbonatobis(triphenylphosphine)-platinum(II) formed by action of oxygen and carbon dioxide] separates slowly. The compound reacts wdth carbon tetrachloride, giving cfs-dichlorobis(triphenylphosphine)platinum(II). ... 

Tetrachloropalladate(II) ion catalyzes the interconversion of 1- and 2-butenes in aqueous solutions containing chloride and hydronium ions. Sodium tetrachloropalladate(II) catalyzes the conversion of allylbenzene to propenyl-benzene in acetic acid solutions. Tetrakis(ethylene))Lt,/x -dichlororhodium(l) catalyzes butene isomerization in methanolic hydrogen chloride solutions . Cyclooctadienes isomerize in benzene-methanol solutions of dichlorobis-(triphenylphosphine)platinum(11) and stannous chloride. Chloroplatinic acid-stannous chloride catalyzes the isomerization of pentenes. Coordination complexes of zero-valent nickel with tris(2-biphenylyl)phosphite or triphenyl-phosphine catalyze the isomerization of cis-1,2-divinylcyclobutane to a mixture of c/5,m-l, 5-cyclooctadiene and 4-vinylcyclohexene . Detailed discussions of reaction kinetics and mechanisms appear in the papers cited. 

The compound dissolves in benzene, with dissociation. By leaving the benzene solution in the air, (carbonato)bis(triphenylphosphine)platinum(II) separates slowly. It reacts easily with carbon tetrachloride giving cis-dichlorobis(triphenylphosphine)platinum(II). The complex is tricoordinated in the solid state, and shows a nearly pure sp hybridization of the platinum atom. ... 

R. W. Adams, G. E. Batley and J. C. Bailar, Jr., Homogeneous Catalytic Hydrogenation and Isomerization of Olefins with Dichlorobis(triphenylphosphine)platinum(II)-Tin Chloride Catalyst, Inorg. Nucl. Chem. Letters 4 455 (1968). 

The controlled-potential electrolyses were carried out in a cell with three separated compartments. The cathode was a reticulated carbon rod and the anode was a platinum wire. As reference electrode was used a modified SCE. The catholyte was prepared by dissolving 2-aminophenol in CH3CN, containing n-Bu NBF (0.2M) as well as an excess of base and dichlorobis(triphenylphosphine) palladium(II) or palladium(II) acetate as catalyst. Carbon monoxide was bubbled through a glass capillary into the cathodic solution that subsequently was kept under a CO pressure of 1 atm. The electrolyses were interrupted when the current dropped to the value of the background current. 

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