Structural and thermal characterization of copper(II) complexes with phenyl-2-pyridylketoxime and deposition of thin films by spin coating

Robert Szczęsny, Tadeusz M. Muzioł, Duncan H. Gregory, Edward Szłyk

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Abstract

Four copper(II) oxime complexes, [Cu(HPPK)(PPK)X] (HPPK = phenyl-2-pyridylketoxime and X = CI<>-<> (I ), CF<>3<>COO- (II ), C<>3<>F<>7<>COO- (III ), and [Cu(PPK)<>2<>]<>2<> (IV )), were synthesized and characterized by elemental analysis, infrared spectroscopy (IR), and single-crystal X-ray diffraction (XRD). XRD analysis revealed that I -III contain copper(II) coordinated by four nitrogen atoms from two oxime molecules in the basal plane and one monodentate anion X in the apical position of a distorted square pyramid. Complex IV is dimeric and it is formed by two Cu(PPK)<>2<> units. Bridges between these units are formed by the two oxygen atoms of the deprotonated oxime groups. Thermal stability of I -IV was investigated by thermogravimetric analysis (TGA) in air and in nitrogen atmosphere, respectively. Evolved gaseous decomposition products were characterized by IR. I -IV decompose via multistep processes. Fluorocarbons and CO<>2<> were observed to be the most abundant gaseous species evolved. Preliminary ammonolysis experiments were performed to examine the possibility of using II and IV as precursors for the synthesis of copper nitride. Moreover, solutions of IV were spin-coated onto silicon substrates. Surface structure and morphology of the resulting films were studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM) and layers with island-like distribution of material were observed

Original languageEnglish
Pages (from-to)569-579
Number of pages11
JournalChemical Papers
Volume69
Issue number4
DOIs
Publication statusPublished - Apr 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering
  • Materials Chemistry

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