Abstract
The results of synthesis research and vibrational spectra examination of complex compounds of gold pentafluoride, namely NOF 2AuF 6, NF 4AuF 6, ClOF 2AuF 6, ClO 2AuF 6, ClF 2AuF 6, ClF 4AuF 6, OsF 6AuF 6 and H 3OAuF 6 are presented. Synthesis of NOF 2AuF 6, ClOF 2AuF 6, ClO 2AuF 6, ClF 2AuF 6 and ClF 4AuF 6 were carried out by mixing the initial components in HF. Synthesis of NF 4AuF 6 and OsF 6AuF 6 were carried out by treatment of the mixtures of NF 3+Au and Os+Au by krypton difluoride in anhydrous hydrogen fluoride. The assignment of AuF 6 − anion frequencies in vibrational spectra was made assuming a slightly distorted octahedron structure, and assignment of cation frequencies assuming C 2v (NOF 2 +, ClOF 2 +, ClO 2 +, ClF 4 +), T d(NF 4 +) and O h(OsF 6 +) symmetry. The characteristic features of the vibrational spectra of AuF 5 complex compounds were determined. Evaluations of force field constants of the cations and anions were carried out. The interactions between the said gold pentafluoride complex compounds and water were investigated by means of Raman spectroscopy.
Published Version
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