Synthesis, structure and thermal decomposition of [Ni(NH3)(6)][VO(O-2)(2)(NH3)](2)

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Authors	SCHWENDT P. DUDÁŠOVÁ D. CHRAPPOVÁ J. DRÁBIK M. MAREK Jaromír
Year of publication	2008
Type	Article in Periodical
Magazine / Source	Journal of Thermal Analysis
MU Faculty or unit	Faculty of Science
Citation
Field	Inorganic chemistry
Keywords	ammine complexes; IR spectra; thermal decomposition; X-ray structure
Description	The compound [Ni(NH3)(6)][VO(O-2)(2)(NH3)](2) was prepared and characterized by elemental analysis and vibrational spectra. The single crystal X-ray study revealed that the structure consists of [Ni(NH3)(6)](2+) and [VO(O-2)(2)(NH3)]- ions. As a result of weak interionic interactions V'... O-p(O-p-peroxo oxygen), ([VO(O-2)(2)(NH3)])(2) dimers are formed in the solid-state. The thermal decomposition of [Ni(NH3)(6)][VO(O-2)(2)(NH3)](2) is a multi-step process with overlapped individual steps; no defined intermediates were obtained. The final solid products of thermal decomposition up to 600C were Ni2V2O7 and V2O5.
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