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 journalArticlepeer-review


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
Issue number2
Publication statusPublished - Aug 2012
Externally publishedYes


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

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics

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