Investigation of thermal properties of double complex salts [M(NH3)5Br][AuBr4]2-nH2O, M 5 Rh, Ir

E. Yu Semitut, P. E. Plyusnin, Yu V. Shubin, S. A. Veniaminov, S. V. Korenev

Research output: Contribution to journalArticle

Abstract

Novel double complex salts [M(NH3)5Br] [AuBr4]2-nH2O, M =Rh, Ir, have been synthesized and examined. The processes of thermal decomposition of the compounds in inert and reductive atmospheres have been studied and intermediate products identified. Simultaneous thermal analysis with parallel mass-spectrometric analysis of evolved gases (STA-EGA) has been employed for identification of main gaseous products of thermolysis in inert atmosphere. It has been revealed that the final products of decomposition in inert or reductive atmospheres are fine powders of gold and the corresponding platinum metal with sizes of crystallites 4-40 nm. The possibility of preparation of the metastable solid solution Au0.05Ir0.95 on thermolysis of [Ir(NH3)5Br][AuBr4]2-H2O in inert atmosphere has been demonstrated.

Original languageEnglish
Pages (from-to)901-905
Number of pages5
JournalJournal of Thermal Analysis and Calorimetry
Volume109
Issue number2
DOIs
Publication statusPublished - Aug 2012
Externally publishedYes

Fingerprint

Thermolysis
inert atmosphere
Thermodynamic properties
thermodynamic properties
Salts
Platinum metals
salts
Crystallites
Gold
Powders
Thermoanalysis
Solid solutions
Pyrolysis
products
Gases
Decomposition
atmospheres
crystallites
thermal decomposition
thermal analysis

Keywords

  • Double complex salts
  • DTA
  • Gold complexes
  • Platinum metal complexes
  • STA
  • TG
  • Thermal decomposition

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics

Cite this

Investigation of thermal properties of double complex salts [M(NH3)5Br][AuBr4]2-nH2O, M 5 Rh, Ir. / Semitut, E. Yu; Plyusnin, P. E.; Shubin, Yu V.; Veniaminov, S. A.; Korenev, S. V.

In: Journal of Thermal Analysis and Calorimetry, Vol. 109, No. 2, 08.2012, p. 901-905.

Research output: Contribution to journalArticle

Semitut, E. Yu ; Plyusnin, P. E. ; Shubin, Yu V. ; Veniaminov, S. A. ; Korenev, S. V. / Investigation of thermal properties of double complex salts [M(NH3)5Br][AuBr4]2-nH2O, M 5 Rh, Ir. In: Journal of Thermal Analysis and Calorimetry. 2012 ; Vol. 109, No. 2. pp. 901-905.
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AU - Shubin, Yu V.

AU - Veniaminov, S. A.

AU - Korenev, S. V.

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AB - Novel double complex salts [M(NH3)5Br] [AuBr4]2-nH2O, M =Rh, Ir, have been synthesized and examined. The processes of thermal decomposition of the compounds in inert and reductive atmospheres have been studied and intermediate products identified. Simultaneous thermal analysis with parallel mass-spectrometric analysis of evolved gases (STA-EGA) has been employed for identification of main gaseous products of thermolysis in inert atmosphere. It has been revealed that the final products of decomposition in inert or reductive atmospheres are fine powders of gold and the corresponding platinum metal with sizes of crystallites 4-40 nm. The possibility of preparation of the metastable solid solution Au0.05Ir0.95 on thermolysis of [Ir(NH3)5Br][AuBr4]2-H2O in inert atmosphere has been demonstrated.

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