Synthesis and characterization of thermally stable oligomer-metal complexes of copper(II), nickel(II), zinc(II) and cobalt(II) derived from oligo-p-nitrophenylazomethinephenol
Küçük Resim Yok
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
CHEM SOC ETHIOPIA
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Thermally stable metal complexes based on oligomers were prepared by the reaction between oligo-p-nitrophenilazomethinephenol (ONPAP) and Cu(II), Ni(II), Zn(II) and Co(II) ions. The properties of oligomer-metal complexes were studied by elemental, FT-IR and magnetic moments analyses. The thermal stabilities of the oligomer-metal complexes were compared by thermogravimetric (TG) and differential thermal (DTA) analyses. According to TG, oligomer-metal complexes were stable against to temperature and thermooxidative decomposition. The weight losses of oligomer-metal complexes were found to be 5 and 50 % at 200 and > 850 (Cu(II)), 172 and 600 (Ni(II)), 252 and > 850 (Zn(II)) and 174 and 510 (Co(II)), degrees C, respectively. Based on half degradation temperature parameters Cu(II) and Zn(II) complexes were more resistant than the others.
Açıklama
Anahtar Kelimeler
oligomer metal complexes, oligo-p-nitrophenilazomethinephenol, Cu(II) complex, Ni(II) complex, Zn(II) complex, Co(II) complex
Kaynak
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
20
Sayı
2
