Platinum complex compounds, anions

Platinous compounds [see specific compounds under Platinum (II)] Platinum (II) chloride, 5 208 6 209 analysis of, 5 209 Platinum (IV) chloride, 2 253 Platinum (II) complex compounds, anions, with 1,4-butadiene, K2[Cl3PtC4H6PtCI3], 6 216 anions, with ethylene, [Pt(C2H4)-CU]K, 5 211, 214... 

The compound is a dark red-purple dichroic cystalline material. In time, the crystals develop a thin coating of sulfur. The rhodium(III) complex, which appears to be structurally similar to the platinum(IV) compound, shows much greater reactivity in that sulfur is readily lost on dissolving in water, dimethyl-formamide, or pyridine. From water, a product may be precipitated which appears to contain the [RhSi0] anion. Reaction with cyanide ultimately produces the thiocyanato complex. 

The technical cause is due to a deficiency of the Eh calculation method from redox-couples. It is noteworthy that the greatest scatter is associated with anion redox-couples whose components easily enter into the composition of complex compounds. Ignoring complex compounds-associated anions naturally results in distorted Eh values. Anderson (2005) stated that platinum electrodes react well to Fe and Mn only at their sufficiently high concentrations. So, electrode parameters reflect first of all ratio Fe /Fe +. 

Bis(alkynyl)argentate anions [Ag(CsCR)2] can be obtained in the form of the potassium or the more stable bis(tiiphenylphosphine)iminium (PPN) salts by the reaction of silver nitrate with an excess of RCsCK (equation 20) or by reacting [PPN][Cl], AgCsCPh and PPh3 in 1 2 3 mole ratio (equation 21), respectively. The complexes act as useful alkynylating agents for some gold(I) and platinum(Il) compounds. 

In recent years, a number of low-valent group 10 complexes with anionic pincer ligands have been isolated and characterized. Milstein investigated the chemical reduction of palladium [81] and platinum [82] complexes with PCP Hgands with sodium (Scheme 2.8). The Pd-pincer framework of complex 2 does not resist reduction and collapses, giving rise to the unusual binuclear complex 29. In this compound, both PCP ligands are covalently bound to one of the Pd atoms, which... 

R. Uson, J. Eomies, and M. Tomas, J. Organomet. Chem., 1988, 358, 525-543. Anionic Perhaloaryl-Palladium and Perhaloary 1-Platinum Complexes as Sources of Unusual Homonuclear and Heteronuclear Compounds. 

Electric neutraUty of the compounds, postulated as an essential prerequisite for the achievement of cytostatic properties in the case of platinum complexes is obviously not a crucial condition for cyclopentadienyl metal complexes to exhibit antitumor properties. There exist, on the one hand, numerous neutral compounds such as the metallocene diaddo complexes I-XLIU and the decasubstituted main group IV metallocenes LVn-LIX exhibiting antiproliferative properties on the other hand, marked tumor-inhibitmg potendes were also found with the charged ferricenium salts XLIX-LVI as well as with the ionic cyclopentadienyl titanium complexes Xl.IVXLVlll wherein the titanium-containing unit may either form the cationic or the anionic moiety. Because of... 

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