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Chemija / Chemistry

ISSN 0235-7216
ISSN 2424-4538 (online)

2007 m. Nr. 4

Spectrometric investigation of complexes obtained by interaction of tin(II) and platinum(IV)
Rima TAROZAITĖ, Aldona JAGMINIENĖ, Vitalija JASULAITIENĖ, Marija KURTINAITIENĖ

The formation of three forms of Pt(II)–Sn(II) complexes during a reaction of Pt(IV) and Sn(II) solutions, depending on the HCl, SnCl2 and total Cl concentrations, has been shown by means of light absorption and X-ray photoelectron spectroscopy. The transition of H3[Pt(SnCl3)5] complex to H2[Cl2Pt(SnCl3)2], and of H2[Cl2Pt(SnCl3)2] complex to H2[Pt3(SnCl3)8], observed over time, is related to the oxidation of Sn(II). An increase in temperature accelerates the transition. The initial complexes may be renewed by supplementing the missing amounts of SnCl2 and HCl. An increase in the SnCl2 concentrations stabilizes the complexes.

Keywords: platinum(IV), tin(II), Pt(II)-Sn(II) complexes, light adsorption

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2017 - Vol.28
No. 1, No. 2, No. 3, No. 4

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