1 Ocak 2015 Dergi makalesi Açık Erişim

Sahin, Duygu; Kocoglu, Serhat; Sener, Oznur; Senol, Cemal; Dal, Hakan; Hokelek, Tuncer; Hayvali, Zeliha

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{
  "DOI": "10.1016/j.molstruc.2015.09.004", 
  "abstract": "NO donor ligands were prepared by the condensation of methoxy substituted salicylaldehyde with 5-methylfurfurylamine (I and 2) and 4'-aminobenzo-15-crown 5 (3-5). New crown ether ligands of Schiff base type (3-5) containing recognition sites for alkali metal and transition guest cations. Ni(II) complexes (1a-5a) have been synthesized with bidentate NO donor Schiff base ligands (1-5) with Ni(CH3COO)(2).center dot 4H(2)O. Monotopic crystalline 1:1 (Na+:ligand) sodium complexes (3b-5b) of the crown ether ligands were also prepared. Schiff bases (1-5) and complexes (1a-5a, 3b-5b) were characterized by elemental analyses, FT-IR, H-1-,C-13-NMR and mass spectroscopies. The crystal structures of 1, la and 2 were verified by X-ray diffraction analysis. The tautomeric equilibria (phenol-imine, O-H center dot center dot center dot N and ketoamine, O-H center dot center dot center dot N forms) have been systematically studied by using UV-vis spectrophotometry for the ohydroxy substituted compounds (1-5). The UV-visible spectra of these ligands (1-5) were recorded and commented in polar, non-polar, acidic and basic media. (C) 2015 Elsevier B.V. All rights reserved.", 
  "author": [
    {
      "family": "Sahin", 
      "given": " Duygu"
    }, 
    {
      "family": "Kocoglu", 
      "given": " Serhat"
    }, 
    {
      "family": "Sener", 
      "given": " Oznur"
    }, 
    {
      "family": "Senol", 
      "given": " Cemal"
    }, 
    {
      "family": "Dal", 
      "given": " Hakan"
    }, 
    {
      "family": "Hokelek", 
      "given": " Tuncer"
    }, 
    {
      "family": "Hayvali", 
      "given": " Zeliha"
    }
  ], 
  "container_title": "JOURNAL OF MOLECULAR STRUCTURE", 
  "id": "81979", 
  "issued": {
    "date-parts": [
      [
        2015, 
        1, 
        1
      ]
    ]
  }, 
  "page": "302-313", 
  "title": "New NO donor ligands and complexes containing furfuryl or crown ether moiety: Syntheses, crystal structures and tautomerism in ortho-hydroxy substituted compounds as studied by UV-vis spectrophotometry", 
  "type": "article-journal", 
  "volume": "1102"
}