Synthesis, Crystal Structure, Magnetic, Thermal and Fluorescent Properties of [Co(H2O)(4)(nia)(2)](suc)center dot(H(2)suc)


DEMİR S. , Yilmaz V. T. , MROZINSKI J., LIS T., HOLYNSKA M.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, cilt.65, ss.695-700, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 65 Konu: 6
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1515/znb-2010-0605
  • Dergi Adı: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
  • Sayfa Sayıları: ss.695-700

Özet

A new cobalt(II) complex, [Co(H2O)(4)(nia)(2)](suc)center dot(H(2)suc) [nicotinamide = nia, succinate = suc(2-)], has been synthesized and characterized by elemental analysis, IR. TG-DTA and single-crystal X-ray diffraction. It contains [Co(H2O)(4)(nia)(2)](2+) complex cations, uncoordinated suc(2-) anios and H(2)suc species. In the complex cation the cobalt(H) ion is coordinated by four aqua and two nia ligands in a distorted octahedral geometry. The suc(2-) dianion acts as a counter-ion, while H(2)suc is present as a molecule of solvation. A three-dimensional network is formed by O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds. The title complex exhibits luminescence in the solid state at room temperature. The magnetism of the complex was studied over the temperature range 1.8 - 300 K.