Platinum, dichloride

PLATDIUM-GROUP TOTALS, COMPOUNDS] (Vol 19) Platinum dichloride [1002565-7]... 

Transition metals have been linked to cyclo- and polyphosphazenes by four different methods. First, and most obvious, the linkage makes use of the coordinating power of the backbone nitrogen atoms. The platinum dichloride adduct (referred to earlier) falls into this category. 

Cisplatin is a platinum complex (platinum dichloride and two ammonia molecules) used as a cytostatic agent against cancer. The molecule cross-links DNA strands, thus leading to cell death. 

Murai296 introduced platinum dichloride as one of the most versatile catalysts for the promotion of various skeletal rearrangements, a finding soon confirmed by a myriad of follow-up papers describing new uses of this metal halide... 

Catalysis of platinum dichloride has provided an intriguing panel of reactions of allenynes just by subtle modifications in the substitution pattern (Scheme 119). Thus, while the reaction of the allenyne 473 gives the previously unknown hydrindene product 474, the reaction of allenyne 475 that does not have a methyl group at the internal... 

Platinum deposition techniques, 79 157 Platinum dichloride, 79 655 Platinum-divinyltetramethyldisiloxane complex, in silicone network preparation, 22 563 Platinum films, 79 658 Platinum gauze catalyst, 77 180-181 Platinum-group metal compounds, 79 635-667 analysis of, 79 637 economic aspects of, 79 635-636 health and safety factors related to, 79 658... 

Platinum combines with dry chlorine above 250°C forming platinum dichloride, PtCb. Reaction with fluorine occurs at dull red heat forming platinum tetrafluoride, PtF4, as the major product, with small amounts of difluoride, PtF2. 

Platinum dichloride is prepared by heating platinum sponge in chlorine at about 500° C ... 

Platinum dichloride dissolves in hydrochloric acid to form a dark brown complex acid, tetrachloroplatinic(ll) acid, H2PtCl4 in the solution ... 

Platinum dichloride forms complexes with ammonia, [Pt(NH3)4]Cl2, which on heating yields [PtCl2(NH3)2]. 

Platinum Dichloride Platinum Dioxide Platinum Hexafluoride Platinum Monoxide Platinum Tetrachloride Plutonium Polonium Potassium Potassium Acetate Potassium Bicarbonate Potassium Bisulfide Potassium Borohydride Potassium Bromate Potassium Bromide Potassium Carbonate... 

A suspension of platinum dichloride (10 g, 37.6 mmol) in benzonitrile (commercial grade) (250 mL) is heated at 110°C in a round-bottomed flask... 

Binary Compounds. Three fluorides, PtF4 [13455-15-7], PtF5 [37782-184-8], and platinum hexafluoride [136934)5-5], PtF., are well documented. The last is a powerful oxidizing agent and can oxidize dioxygen and xenon (235). Two chlorides exist, platinum dichloride [10025-65-7],... 

Bis[di-/-butylphosphano]tellurium reacted with platinum dichloride in toluene and with bis[benzonitrile]dichloroplatinum in dichloromethane to produce yellow crystals of the expected complex2. 

Platinum Dichloride, PtCl2.—This salt, also known as Platinous... 

Platinum dichloride also results, mixed with a little tetrachloride, when platinum sponge or, better, platinum black, obtained by reduction of ammonium chlor-platinate by hydrogen gas at 100° C., is heated in chlorine to 360° C. It is obtained in a more pure condition by heating chlor-platinous acid, HaPtCl or the hydrated acid chloride, namely, trichlor-platinous acid, PtCl2.HC1.2H20 or H2PtCl3(0H)H20, to 100° C.7... 

It dissolves in water, yielding a reddish brown solution with an acid reaction. Heated to 100° C. it loses water and hydrogen chloride, yielding a residue of platinum dichloride. 

When heated, the crystals melt at 60° C. in their own combined water if maintained at 100° C. in vacuo in the presence of potash, pentacMor-hydroxy-plaiinic acid, PtCl4.HC1.2H20 or H2PtCl5(0H).H20, is left as a residue in the form of reddish brown crystals.9 At higher temperatures platinum dichloride is formed. It does not, upon mere... 

Various compounds of platinum dichloride with phosphorus trichloride and with phosphorous acid have been prepared.5... 

Monocarbonyl Platinum Dichloride, PtCl2. CO, obtained by heating the di- and sesqui-earbonyls to 250° C., yields golden yellow crystals, melting at 195° C. to an orange-red liquid. The crystals are hygroscopic and are decomposed by water, the main reaction consisting in the deposition of platinum and liberation of carbon dioxide and hydrochloric acid thus 3 ... 

Carbonyl platinum dichloride has a distinctly basic character. It dissolves in excess of hydrochloric acid to a lemon-yellow solution, due, perhaps, to the formation of a soluble hydrochloride, PtCl2.CO.HCl. This solution is a powerful reducing agent, effecting the reduction of silver, gdld, and mercury from their salts.1 The monocarbonyl unites with soluble metallic chlorides, such as those of the alkali metals, to yield yellow, crystalline double salts. These, however, are so readily soluble and so easily decomposed that their satisfactory isolation has proved difficult. With the chlorides of certain organic bases, however, well-defined compounds have been obtained.4... 

Sesquicarbonyl Platinum Dichloride, 2PtCl2.3CO, results on heating the dicarbonyl to 250° C. in a current of carbon monoxide. It may... 

Dicarbonyl Platinum Dichloride, PtCI2.2CO, is obtained by heating the monocarbonyl to 150° C. in a current of carbon monoxide. Upon sublimation in the gas it yields colourless needles melting at 142° C. to a yellow liquid. If raised to the melting-point in air, carbon monoxide is evolved. The residue solidifies and melts again at 190° C. A little above this temperature further decomposition sets in. 

It is also prepared by evaporating a solution of monocarbonyl platinum dichloride in hydrochloric acid on the water-bath in a current of hydrogen bromide. Upon recrystallisation from benzene it yields orange-red crystals, entirely free from platinum and platinous bromide. 

Monocarbonyl Platinum Di-iodide, Ptl2. CO, is obtained3 by adding dilute hydriodic acid to a solution of the carbonyl platinum dichloride in hydrochloric acid ... 

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