Matjaž Kristl, Miha Drofenik
Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia

 Ljubo Golič
Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, SI-1000 Ljubljana, Slovenia
 

ABSTRACT

A new hydroxylammonium compound with the formula (NH3OH)2SiF6 has been synthesized by reaction of solid NH3OHF and H2SiF6. By recrystallization  from aqueous HF, single-crystals of  (NH3OH)2SiF6.2H2O were isolated. Both compounds were characterized by elemental analysis and thermal analysis, the structure of  (NH3OH)2SiF6.2H2O has been determined by single crystal x-ray analysis. The compound crystallizes monoclinic with cell parameters: a = 10.772(5) ?, b = 7.336(6) ?, c = 10.447(3) ?, b  = 102.09(3)°.