摘要:
It is established that krypton difluoride (KrF2) interacts with metallic gold in anhydrous hydrogen fluoride (HF) in the presence of alkaline and alkaline-earth metal fluorides with the formation of complex hexafluoroaurates with the general formula (MAuF6)-Au-I-F-V (M-I = Li, Na, K, Rb, Cs) and bis-hexafluoroaurates M-II((AuF6)-F-V)(2) (M-II = Mg, Ca, Sr, Ba). As a result of the subsequent interaction of bis-hexafluoroaurates with krypton difluoride, new coordination compounds with the composition M-II((AuF6)-F-V)(2) center dot nKrF(2) (M-II = Ca, Sr, Ba; n = 0-4) were synthesized. The Raman spectra were studied and a comparative analysis of the Raman spectra of the obtained compounds was performed. The possible variants of the structural transformation of the AuF (6) (-) anions in compounds and the position and character of the chemical bond of the "guest" (KrF2) in these compounds are discussed.