Synthesis, characterization, electrochemical properties and conversions of carbon dioxide to cyclic carbonates mononuclear and multinuclear oxime complexes using as catalyst


Kilic A., Palali A. A., Durgun M., Tasci Z., Ulusoy M., DAGDEVREN M., ...Daha Fazla

INORGANICA CHIMICA ACTA, cilt.394, ss.635-644, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 394
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.ica.2012.09.020
  • Dergi Adı: INORGANICA CHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.635-644
  • Anahtar Kelimeler: Oxime complexes, Mass spectra, Electrochemistry, Carbon dioxide, Cyclic carbonate, TRANSITION-METAL-COMPLEXES, REDOX PROPERTIES, ALTERNATING COPOLYMERIZATION, SPECTRAL CHARACTERIZATION, SCHIFF-BASE, CU-II, NI-II, PROPYLENE-OXIDE, SALEN COMPLEXES, STYRENE OXIDE
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Unsymmetrical dioxime ligand and its mono- and multinuclear metal complexes were synthesized and characterized by H-1 and C-13 NMR spectra, FT-IR, UV-Vis, elemental analysis, melting point measurements, LC-MS spectroscopy, molar conductivity measurements and magnetic susceptibility and cyclic voltammetry techniques. We firstly prepared new unsymmetrical dioxime ligand (1) and its mononuclear [Ni(dioxime)(2)] complex (2). Then, the intramolecular O-H center dot center dot center dot O bridges are replaced with Cu(II)(N-N) complex to synthesize multinuclear [Ni(dioxime)(2)Cu-2(N-N)(2)](ClO4)(2) oxime complexes (3-7) where N-N = 2,2'-bipyridine (bpy), 1,10-phenanthroline (phen), 3,3'-dicarboxy-2,2'-bipyridine (dcbpy), 4,5-diazafluoren-9-one (dafo) and 1,10-phenanthroline-5,6-dione (dione). The mononuclear complex [Ni(dioxime)(2)] (2) was used as a precursor for building multinuclear oxime complexes (3-7). In this paper, our goal is to study spectroscopic, electrochemical and catalytic properties of this new ligand and its metal complexes. (C) 2012 Elsevier B. V. All rights reserved.