Magnus s salt

Magnus s salt is an electrolyte and non-ionized polymerization isomers (p. 921) of the stoichiometry PtCl2(NH3)2 are also known which can be prepared as monomeric cis and Irons isomers ... 

Certain halide complexes, notably (NR4)2CuCl4 709), may be considered as square planar. One compound which is truly square planar is [Cu(NH3)4](PtCl4) 225), where planarity is forced upon the system by the host lattice, Magnus s salt [Pt(NH3)4][PtCl4]. Analysis of the nitrogen tensor indirectly shows that the hybridization of the ammonia lone-pair electrons is This is not unexpected, and shows how... 

The precipitate is allowed to settle, the mother liquor decanted, and the solid washed with small portions of hot water (on a filter) until the wash water is free of chlorides. The Magnus s salt is now pure and can be dried. 

Magnus s salt Dark-green crystalline needles. Very difficult to dissolve in water. Rapidly transformed into trans-[PtCl2(NH3)3] on dry heating to 290°C. 

II. A lukewarm solution of 41 g. of KaPtCl and 27 g. of NH4CI in 200 ml. of H3O is reacted with 54.4 ml. of 3.75 N ammonia (0.204 mole) and allowed to stand for two days at room temperature and for an additional day at 0°C. The precipitate which has formed is then filtered off with suction (removing the liquid as completely as possible), thoroughly washed with ice water, and dried in air. The yield is 27.1 g. of a product which is not completely pure but contains, in addition to cis-[PtCls(NH3)3], a few percent of Magnus s salt and [PtCl(NH3)3]3 [PtCl ]. 

Magnus green salt takes its name from its discoverer (1828), H.G. Magnus, Professor of Physics and Technology at the University of Berlin. Pink [Pd(NH3)4]PdCl4, Vauqelin s salt, was discovered slightly earlier (1813) by L.-N. Vauquelin, Professor of Chemistry at the College de France. 

In the complex [Co(NH3)6]Cl3, the cation is [Co(NH3)6]3+, and it is named first. The coordinated ammonia molecules are named as ammine, with the number of them being indicated by the prefix hexa. Therefore, the name for the compound is hexaamminecobalt(III) chloride. There are no spaces in the name of the cation. [Co(NH3)5C1]C12 has five NH3 molecules and one CN coordinated to Co3+. Following the rules just listed leads to the name pentaamminechlorocobalt(III) chloride. Potassium hexacyanoferrate(III) is K3[Fe(CN)6j. Reinecke s salt, NH4[Cr(NCS)4(NH3)2], would be named as ammonium diamminetetrathiocyanatochro mate (III). In Magnus s green salt, [Pt(NH3)4][PtCl4], both cation and anion are complexes. The name of the complex is tetraammineplatinum(II) tetrachloroplatinate(II). The compound [Co(en)3](N03)3 is named as tris(ethylenediamine)cobalt(III) nitrate. 

Other square planar Pt(II) complexes able to form infinite unidirectional chains in the solid state are known, in particular the Magnus s green salt [Pt(NH3)4][PtCl4],u but also Pt(I) complexes such as [Pt(bipy)2](N03) 2FI20 (obtained by electrochemical reduction of [Pt(bipy)2](NC>3)2 H20) have recently shown linear chain crystals (Pt-Pt = 3.56 A).12... 

Rundle and others (7, 105, 217) have suggested that the interaction between the metal atoms in these compounds is bonding, and that it is largely responsible for the uptake of the structure. So far as the analogues of Magnus s green salt are concerned, it has been shown that the structure... 

The first ammino-derivative of palladium was prepared by Vauquclin in 1813.1 Vauquelin s salt, the chloropalladite of tetranunino-palladium, [Pd(NH3)4]PdCl1, corresponds to the green salt of Magnus, the first known compound of the ammino-platinum salts. 

Louis-Nicolas Vauquelin (1763-1829) discovered the pink compound tetraamminepalladium(II) tetrachloropalladate(II), [Pd(NH3)4][PdCl4].14 This compound, which contains coordinated palladium in both the cation and the anion, is still known as Vauquelin s Salt after its discoverer. The corresponding platinum compound, [Pt(NH3)4][PtCl4], was discovered by Heinrich Gustav Magnus (1802—1870).15 It constitutes the first discovered platinum ammine and is known as Magnus ... 

NUCLEARREACTORS - REACTOR TYPES] (Vol 17) Magnus s green salt [1382046-7]... 

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