Synthesis, characterization and thermal study of some tetradentate Schiff base transition metal complexes

DOĞAN F., Ulusoy M., ÖZTÜRK O., KAYA İ., SALİH B.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, cilt.98, sa.3, ss.785-792, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 98 Sayı: 3
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1007/s10973-009-0205-2
  • Dergi Adı: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.785-792
  • Anahtar Kelimeler: Activation energy, Sterically hindered diimine, Thermal decomposition, Transition metal complexes
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

Several mononuclear Co(II), Ni(II), Cu(II), and Fe(II) complexes of tetradentate salpren-type diimine, obtained from 3,5-di-tert-butyl-2-hydroxybenzaldehyde and 1,3-diaminopropane have been prepared and characterized by analytical, spectroscopic (FT-IR, UV-VIS) techniques, magnetic susceptibility measurements and thermogravimetric analyses (TG). The thermodynamic and thermal properties of complexes have been investigated. For further characterization Direct Insertion Probe-Mass Spectrometry (DIP-MS) was used and the fragmentation pattern and also stability of the ions were evaluated. The characterization of the end products of the decomposition was achieved by X-ray diffraction. The thermal stabilities of metal complexes of N,N'-bis(3,5-di-t-butylsalicylidene)-1,3-propanediamine ligand (L) were found as Ni(II) > Cu(II) > Co(II) > Fe(II).