Synthesis and characterization of divalent metal complexes with bipyridylamide ligands |
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Authors: | Ethan P. McMoran Clement Mugenzi Kyle Fournier Mark Draganjac Donavon Tony Kwangkook Jeong |
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Affiliation: | 1. Department of Chemistry, University of Central Arkansas, Conway, AR, USA;2. Department of Chemistry and Physics, Arkansas State University, State University, AR, USA;3. Mechanical Engineering, Arkansas State University, State University, AR, USA |
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Abstract: | Reaction of N-(4-pyridyl)picolinamide (4-ppa), N-(4-pyridyl)nicotinamide (4-pna), N-(4-pyridyl)isonicotinamide (4-pina), and N-(2-pyridyl)isonicotinamide (2-pina) with divalent metal salts led to the formation of six new coordination complexes. The X-ray structure of [Zn(4-ppa)2Cl2] (1) shows a mononuclear structure with interesting intermolecular hydrogen bonding interactions. [Zn(4-pna)(OAc)2]n (2), Cu(4-pna)(OTf)2(DMF)2]n (3), {[Zn(4-pina)(DMF)4](OTf)2}n (4), {[Fe(4-pina)(DMF)4](OTf)2}n (5), and [Cu(2-pina)(OTf)2(DMF)2]n (6) are one-dimensional coordination polymers with conformational differences caused by the coordination donor disposition, which demonstrates the flexibility of the pyridylamide ligands in polymeric structures. Reflectance UV-visible spectra and thermal properties of the coordination polymers are also reported. |
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Keywords: | Zinc(II) copper(II) iron(II) coordination complex crystal structure one-dimensional polymer |
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