Silver ionic compounds as a source of metal carriers in the gas phase.

When silver ionic compounds are heated, their structures are changed, and volatile metal carriers with unidentate or bridging carboxylates are formed when p = 10-1 mbar (dynamic vacuum). On the other hand, using a pressure of 10-2 mbar, complexes containing a coordinated carboxylate and an amine are formed (static vacuum). [Display omitted] In the present study, we have synthesised and characterised new silver(I) complexes with the general formula [Ag(NH 2 t Bu) 2 ](R f CO 2)·xH 2 O, where R f = CF 3 , x = 0.5; R f = C 2 F 5 , C 5 F 11 , C 6 F 13 , x = 0; and [Ag(NH 2 t Bu) 2 ][Ag(NH 2 t Bu) 2 (H 2 O)](R f CO 2) 2 ·xH 2 O, where R f = C 3 F 7 , x = 0.25; R f = C 4 F 9 , x = 0. Single crystal X-ray diffraction, infrared spectroscopy (IR) and nuclear magnetic resonance (NMR) spectroscopy were used to confirm compounds' composition and structure. The volatility of the compounds was studied using thermal analysis, electron impact (EI) mass spectrometry, variable temperature infrared spectroscopy, and sublimation experiments. Research has revealed that when compounds are heated, their structures are changed, and volatile silver carboxylates are formed. A thermal decomposition mechanism over reduced pressure was proposed. Two compounds [Ag(NH 2 t Bu) 2 ](CF 3 CO 2)·0.5H 2 O and [Ag(NH 2 t Bu) 2 ](C 2 F 5 CO 2) were used in chemical vapour deposition experiments with an evaporation temperature of 473 K and a decomposition temperature in the range of 593–653 K without the using of additional reducing agents such as hydrogen. Due to the low efficiency of generating volatile metal carriers, very thin deposits containing silver were obtained. [ABSTRACT FROM AUTHOR]