The synthesis and characterization of a series of 2, 2′-biquinolines differently substituted in the 4, 4′-position and their corresponding silver (I) derivatives obtained through reaction with silver triflate in a 1: 1 stoichiometric ratio are reported. In order to perform a systematic investigation on the role played by the substituents on the coordination to the silver (I) centre, structural studies through single crystal X-ray diffraction have been performed on ...