title: Synthesis, X-ray crystal structures and thermal analyses of some new antimicrobial zinc complexes: New configurations and nano-size structures.
abstract: Some new five coordinated ZnLX2 complexes, where L is N3-Schiff base ligand obtained by condensation reaction between diethylenetriamine and (E)-3-(2-nitrophenyl)acrylaldehyde and X (Cl(-), Br(-), I(-), N3(-) and NCS(-)), were synthesized and characterized by FT-IR, (1)H and (13)CNMR, UV-visible, ESI-mass spectra and molar conductivity measurements. The structures of zinc iodide and thiocyanate complexes were determined by X-ray crystallographic analysis. The X-ray results showed that the Zn (II) center in these complexes is five-coordinated in a distorted trigonal-bipyramidal configuration. Zinc iodide and thiocyanate complexes crystallize in the monoclinic and triclinic systems with space groups of C2/c and P1- with eight and two molecules per unit cell respectively. The crystal packing of the complexes consists of intermolecular interactions such as C-H(…)O and C-H(…)I, C-H(···)S, N(…)O, together with π-π stacking and some other unexpected interactions. The mentioned interactions cause three-dimensional supramolecular structure in the solid state. Zinc complexes were also prepared in nano-structure by sonochemical method confirmed by XRD, SEM and TEM analyses. Moreover, ZnO nanoparticles were synthesized by direct thermolysis of zinc iodide complex. Furthermore, antimicrobial and thermal properties of the compounds were completely investigated.
authors.affiliation: Department of Chemistry, Yasouj University, Yasouj 7591874831, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Masoudiasl
authors.affiliation: Department of Chemistry, Yasouj University, Yasouj 7591874831, Iran. Electronic address: mmzohori@mail.yu.ac.ir.
authors.forename: M
authors.initials: M
authors.lastname: Montazerozohori
authors.affiliation: Department of Animal Sciences, Yasouj University, Yasouj, Iran.
authors.forename: R
authors.initials: R
authors.lastname: Naghiha
authors.affiliation: Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Assoud
authors.affiliation: School of Chemistry, National University of Ireland, Galway, Ireland.
authors.forename: P
authors.initials: P
authors.lastname: McArdle
authors.affiliation: Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610, Antwerpen, Belgium.
authors.forename: M
authors.initials: M
authors.lastname: Safi Shalamzari
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D001236:Aspergillus oryzae / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D018360:Crystallography, X-Ray; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D006860:Hydrogen Bonding; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D053768:Metal Nanoparticles / Q000737:chemistry; D008968:Molecular Conformation; D012545:Schiff Bases / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D015032:Zinc / Q000737:chemistry*
chemical_list: D000890:Anti-Infective Agents; D056831:Coordination Complexes; D008024:Ligands; D012545:Schiff Bases; D015032:Zinc
keywords: Antimicrobial; Crystal structure; Interaction; X-ray; Zinc complex