“…Functionalized derivatives of 1,2,4-triazole, particularly 3,5-diamino-1,2,4-triazole (L), attract an interest and are actively studied as ligands in the synthesis of d-metals complexes [1][2][3], precursors of condensed N-heterocyclic systems [4,5], corrosion inhibitors [6,7], biologically active compounds with a wide range efficiency [8,9] and as high-energy compounds [10][11][12]. On the other hand, ionic complexes with protonated form of N-containing organic bases, including 3,5-diamino-1,2,4-triazole, and complex fluoro-anions such as SiF 6 2À become convenient models to study an influence of interionic N-HÁ Á ÁF bonds on the structural characteristics and properties of these compounds [13][14][15][16].…”