Dinuclear Cu-I And Ag-I Pyrazolates Supported With Tertiary Phosphines: Synthesis, Structures, And Photophysical Properties

New dinuclear silver(I) and copper(I) 3,5-bis(trifluoromethyl)pyrazolate compounds were prepared by the reaction of the corresponding trinuclear metal complexes with tertiary phosphines (PPh3, PCy3). In the case of copper(I) trinuclear pyrazolate it was shown that the product structure depends on the reagent ratio: mono- and dinuclear complexes were obtained. All the dinuclear complexes obtained exhibit light emission in the solid state under UV irradiation. The observed photoluminescence behavior was confirmed by the TD-DFT study.