Investigation on the thermal decomposition some heterodinuclear Ni II-MII complexes prepared from ONNO type reduced Schiff base compounds (M II=ZnII, CdII)

Aksu M., Durmus S., Sari M., Emreguel K. C., Svoboda I., Fuess H., ...Daha Fazla

Journal of Thermal Analysis and Calorimetry, cilt.90, sa.2, ss.541-547, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 90 Sayı: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s10973-006-7729-5
  • Dergi Adı: Journal of Thermal Analysis and Calorimetry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.541-547
  • Anahtar Kelimeler: crystal structure, heterodinuclear complexes, ONNO type Schiff bases, thermal analysis, CRYSTAL-STRUCTURE
  • Ankara Üniversitesi Adresli: Evet

Özet

N,N'-bis(salicylidene)-1,3-propanediamine (LH2), N,N'-bis(salicylidene)-2,2'-dimethyl-1,3-propanediamine (LDMH2), N,N'-bis(salicylidene)-2-hydroxy-1,3-propanediamine (LOH3), N,N'-bis(2-hydroxyacetophenylidene)-1,3-propanediamine (LACH2) and N,N'-bis(2-hydroxyacetophenone)-2,2'-dimethyl-1,3-propanediamine (LACDMH 2) were synthesized and reduced to their phenol-amine form in alcoholic media using NaBH4 (LHH2, LDM HH2, LOHHH2, LACHH 2 and LACDMHH2). Heterodinuclear complexes were synthesized using Ni(II), Zn(II) and Cd(II) salts, according to the template method in DMF media. The complex structures were analyzed using elemental analysis, IR spectroscopy, and thermogravimetry. Suitable crystals of only one complex were obtained and its structure determined using X-ray diffraction, NiLACH•CdBr2•DMF2, space group orthorhombic, Pbca, a=20.249, b=14.881, c=20.565 Å and Z=8. The heterodinuclear complexes were seen to be of [Ni•ligand•MX 2•DMF2] structure (ligand=LH2-, LDM H2-, LOHH2-, LACH2-, LACDMH2-, M=ZnII, CdII, X=Br-, I-). Thermogravimetric analysis showed irreversible bond breakage of the coordinatively bonded DMF molecules followed by decomposition at this temperature. © 2007 Springer Science+Business Media LLC.