Monomeric mixed cadmium-2,2′-dipyridylamine complex derived from ferrocenecarboxylic acid: Structural, electrochemical and biological studies

A mixed Cd(II) complex {[Cd(FcCOO)(2)(dpyam)(H2O)][Cd(dpyam)(2) (H2O)]center dot(ClO4)(2)center dot CH3OH} (1) (where FcCOO = ferrocenecarboxylic acid and dpyam = 2,2'-dipyridylamine), has been synthesized and characterized by FT-IR, H-1 & C-13 NMR, UV-Vis spectroscopy and elemental analysis. The molecular structure of compound 1 has been determined by the single crystal X-ray diffraction technique, which consists of mixed two different cadmium(II) complexes and two uncoordinated perchlorate ions. The crystal packing shows that the compound 1 self-assembled by intermolecular hydrogen bonding via pyridyl N-H center dot center dot center dot O and coordinated water O center dot center dot center dot H-O-H center dot center dot center dot O, to afford the molecule 2D supramolecular network. Compound 1 exhibits high-energy intraligand (pi-pi*) fluorescence emission. In electrochemical studies of compound 1 shows negative potential compared with ferrocenecarboxylic acid due to formation of coordination complex with Cd ions. The antibacterial study against the distinct bacterial strains show compound 1 has significant activity. (C) 2015 Elsevier B.V. All rights reserved.