Novel hydrazone derivatives and their tetracoordinated metal complexes

SARI N. , Nartop D., Karci F., DİŞLİ A.

ASIAN JOURNAL OF CHEMISTRY, cilt.20, sa.3, ss.1975-1985, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Konu: 3
  • Basım Tarihi: 2008
  • Sayfa Sayıları: ss.1975-1985


New aroylhydrazone derivatives and their Co(II). Ni(II) and Cu(II) complexes have been synthesized and characterized by means of elemental analyses, molar conductances and magnetic measurements as well as electronic spectra, IR spectra, H-1 NMR spectra, C-13 NMR spectra and LC mass spectra. Ni(II) complexes were found to have general compositions [ML], where L = 2,6-dipiperidino-4-(2-hydroxybenzylidene hydrazino)-1,3.5-s-triazine: 2.6-dipiperidino-4-(5-bromo-2-hydroxybenzylidene hydrazino)-1,3,5-s-triazine, while other complexes have composition [ML2] (M = Co2+ or CU2+). The infrared spectra indicate the coordination of imino nitrogen and phenolic oxygen atoms. Tetracoordinated structures are proposed for the Co(II) Ni(II) and Cu(II) complexes on the basis of magnetic evidence and electronic spectra.