Potassium chloroplatinite

Kalium-oxyd, n. potassium oxide, -oxydhydrat, n. potassium hydroxide, -permangaoat, n. potassium permanganate, -platinchlorid, n. potassium chloroplatinate, potassium chlo-roplatinate(IV). -platmchloriir, n. potassium chloroplatinite, potassium chloroplatinate (II). -platmcyaniir, n. potassium cyano-platinite, potassium cyanoplatinate(II). 

Ethylenediamine, propylenediamine, and other bases of this type may replace all or part of the ammonia in the tetrammino-salts. The substances are obtained by treating potassium chloroplatinite with the base. The compounds have the same general characteristics as the tetrammino-salts themselves, but are more stable.2... 

Dipropylenediamino-platinous Chloride, [Pt pn2]Cl2, crystallises in greyish-white leaflets, and is prepared by boiling a solution- of potassium chloroplatinite with propylenediamine under a reflux until the yellow precipitate first formed dissolves. 

Hydroxylamine plays the same part in the molecule as ammonia in ammino-platinum compounds, but the substances differ somewhat in chemical behaviour, for hydroxylamine is more readily eliminated than ammonia from the complex. Also, m-dihydroxylamino-dichloro-platinum is not obtained by the interaction of free hydroxylamine and potassium chloroplatinite, the method used for the preparation of cis-dichloro-diammino-platinum. Again, tetrammino-platinous hydroxide, [Pt(NH3)4](OH)2, is a very strong base and easily soluble in water, whilst tetrahydroxylamino-platinous hydroxide, [Pt(NH2OH)4](OH)2, is almost insoluble in water and a comparatively weak base.2 For this reason Werner 3 suggested a different formula for the two substances, and indicated that possibly in the tetrahydroxylamino-com-pound the co-ordination number of the metal is six and not four, as in the tetrammino-compounds thus ... 

L. F. Nilson could not find it. J. Lang prepared potassium nitritoplatinite, or potassium platinous tetranitrite, K2Pt(N02)4, by crystallization from a mixture of potassium chloroplatinite and potassium nitrite in the molar proportions 1 4. 

SYNS POTASSIUM chloroplatinite POTASSIUM PLATINOCHLORIDE POTASSIUM TETRACHL0R0PLATINATE(II)... 

Dickinson, R. G. The crystal structures of potassium chloroplatinite and of potassium and ammonium chloropalladites. J, Amer. Chem. Soc. 44, 2404-2411 (1922). 

K2PtCl4 Potassium chloroplatinite Potassium tetrachloroplatoate K2PtCle Potassium chloroplatinate Potassium hexachloroplateate... 

Fig. 10.05. Clinographic projection of the unit cell of the tetragonal structure of potassium chloroplatinite, K2PtCl4.

In contrast, the distortion effect is greater in potassium chloroplatinite (K PtC ). 

Other anomalous compounds are complex salts, e.g. potassium ferro-cyanide, K4Fe(CN)e, and ferricyanide, K3Fe(CN)e, which do not give the reactions of iron or cyanides, and potassium chloroplatinite, K2PtCl4, and chloroplatinate, KgPtCle, which do not answer the tests for platinum or chlorides. 

The bistrifluoromethyl compound (CF3)2PFCla has also been obtained as a by-product in the preparation of the fluorophosphine complex Pt[(CF3)aPF]i from potassium chloroplatinite and fluorobistrifluoromethylphosphine. Treatment of (43) with antimony trifluoride at room temperature converts it into the fluorophosphorane n-C3F7-PF4 similar fluorination of trichloro-bisheptafluoro-n-propylphosphorane yields (n-C3Fj)2PF3. The thermolysis of difluorotristrifluoromethylphosphorane (an established route to difluoro-carbene ) in the presence of the nitroso-compound CFaCl CFj-NO has been reported (see p. 113). ... 

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