Bindiya Devi, R.K. Pramodini Devi, S. Bhubon Singh, R.K. Hemakumar Singh, R.K. Swu, Toka Radhapiyari Devi, W. Brajakishore Singh, CH. Synthesis, spectroscopic, and biological studies on copper(II) complexes containing equatorial–apical chloride bridges: crystal structure of [Cu<sub>2</sub>(μ-Cl)<sub>2</sub>(O-2-butoxyethylpyridine-2-carboximidate)<sub>2</sub>Cl<sub>2</sub>] <div><p>Three new [Cu<sub>2</sub>(μ-Cl)<sub>2</sub>(O-2-alkoxyethylpyridine-2-carboximidate)<sub>2</sub>Cl<sub>2</sub>] complexes, where alkoxy = methoxy, ethoxy, and butoxy, were synthesized and characterized by elemental analyses, FTIR spectra, electronic spectra, EPR, conductance, magnetic moment, powdered X-ray powder diffraction, and X-ray single-crystal diffraction. The three complexes contain chloride as a bridging ligand and in each complex the planar bidentate ligand binds the metal ion via the pyridine-N and the NH of the imino ether group. The X-ray crystal structure of [Cu<sub>2</sub>(μ-Cl)<sub>2</sub>(O-2-butoxyethylpyridine-2-carboximidate)<sub>2</sub>Cl<sub>2</sub>] shows that it crystallizes as a centrosymmetric dinuclear species in which each copper(II) is in a distorted square pyramid. Magnetic field-induced partial molecular alignment has been observed in polycrystalline samples of <b>2</b> and <b>3</b> when cooled in a magnetic field of 1 T at 77 K. The interaction of these complexes with Calf thymus DNA has been explored and the values of binding constant, <i>K</i><sub>b</sub> for <b>1</b>, <b>2</b>, and <b>3</b> are 1.524 × 10<sup>3</sup>, 5.587 × 10<sup>3</sup>, and 6.362 × 10<sup>3</sup> (ML<sup>−1</sup>)<sup>−1</sup>, respectively. Complexes were screened for antimicrobial activities by the agar well diffusion technique.</p></div> studies;complexes;containing;chloride 2014-04-30
    https://tandf.figshare.com/articles/journal_contribution/Synthesis_spectroscopic_and_biological_studies_on_copper_II_complexes_containing_equatorial_apical_chloride_bridges_crystal_structure_of_Cu_sub_2_sub_956_Cl_sub_2_sub_O_2_butoxyethylpyridine_2_carboximidate_sub_2_sub_Cl_sub_2_sub_/988781
10.6084/m9.figshare.988781.v2