Structure and Thermal Properties of Silver Complexes with 2,2′-Bipyridine and Fluorinated β-Diketonate Ligands

New silver complexes [Ag(bipy)(CH₃COCHCOR)]_x with 2,2′-bipyridine (bipy) and β-diketonate ligands (tfac: R = CF₃, x = 2; hfbac: R = C₃F₇, x = 1) are prepared as part of the search for precursors for the vapor deposition of films and silver nanoparticles. The compounds are characterized by elemental analysis, IR and ¹H NMR spectroscopy; their crystal structures are determined by XRD. Both complex are molecular due to the bidentate-cyclic coordination of both ligands. The [Ag(bipy)(hfbac)] molecules are mononuclear due to the steric effect of the extended perfluoroalkyl chain. For L = tfac, a binuclear complex is formed due to the coordination of the methine carbon atom. Thermal properties of the new complexes are studied by TGA and DSC and compared with those of the known hexafluoroacetylacetonate analog [Ag(bipy)(hfac)]₂. The temperatures and thermodynamic parameters of melting are determined for all the studied compounds.