Estimation of coordination bond energies of NH3, H2O and Et2NH ligands in the Ni(II) and Cu(II) complexes

Ergun Ü., ATAKOL O., Eriş F., Yücel A., Düzgün E.

Journal of Thermal Analysis and Calorimetry, cilt.97, sa.3, ss.1007-1014, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Özet
  • Cilt numarası: 97 Sayı: 3
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1007/s10973-009-0176-3
  • Dergi Adı: Journal of Thermal Analysis and Calorimetry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1007-1014
  • Anahtar Kelimeler: Bond energy, Coordination bonds, DSC, Schiff bases, Thermal analysis
  • Ankara Üniversitesi Adresli: Evet

Özet

Tridentate ligands 2-hydroxyphenylsalicylaldimine (SAPH2), 2-hydroxyphenyl-2-hydroxy-1-naphtalaldimine (NAPH2) and Ni(II) complexes with multidentate ligand Bis-N•N′-(salicylidene)-1,3- propanediamine (LH2) as well as mononuclear complex of Cu(II) were prepared using the same multidentate ligand. Diethylamine (Et2NH), NH3 and H2O monodentate ligands were bound to these complexes coordinatively. The heat absorbed at the temperatures where these ligands thermally dissociated from the complexes were measured using the TG and DSC methods. It is assumed that the states both of the complexes with and without the monodentate ligands are solid and coordination bond energy for the monodentate ligand is calculated. It is seen that these calculated coordination bond energies are comparable with hydrogen bond energies. © 2009 Akadémiai Kiadó, Budapest, Hungary.