Hydrothermal synthesis and characterization of Zn(II), Cd(II) and Ag(I)-saccharinate complexes containing bis(imidazol) derivatives


ERER H. , Karacam S., ARICI M. , YEŞİLEL O. Z. , ÇELİK Ö.

POLYHEDRON, cilt.98, ss.180-189, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 98
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.poly.2015.06.011
  • Dergi Adı: POLYHEDRON
  • Sayfa Sayıları: ss.180-189

Özet

Five mixed-ligand complexes, namely [Zn(sac)(2)(mu-obix)](n) (1), {[Cd(sac)(2)(mu-obix)(2)]center dot 2H(2)O}(n) (2), [Cd(sac)(2)(mu-Pbix)(H2O)(2)](n) (3), [Ag(2)sac)(2)(mu-pbix)(2)] (4) and [Ag-2(sac)(2)(mu-mbix)] (5) with saccharinate (sac) and three isomeric bis(imidazole) ligands (1,x-bis(imidazol-1-ylmethyl)benzene; x = 2, obix; x = 3, mbix and x = 4, pbix), have been synthesized and characterized by elemental analysis, IR spectroscopy and single crystal X-ray diffraction. Moreover, their thermal and photoluminescence properties have been studied in detail. Single crystal X-ray results show that the saccharinate ligand coordinates to the metal ions through nitrogen atoms in complexes 1 and 3-5, while it connects to the metal ion by the carbonyl oxygen atom in complex 2. Complexes 4 and 5 are dinuclear, while complexes 1-3 are 1D coordination polymers. In complexes 1-5, adjacent 1D chains are interlinked into a 3D network by hydrogen bonding, C-H center dot center dot center dot pi and pi center dot center dot center dot pi interactions. The most striking features of complexes 4 and 5 are that they contain (C-H)center dot center dot center dot Ag and (C=O)center dot center dot center dot Ag close interactions. Complexes 3-5 display blue emissions which are due to ligand to metal charge transfers. (C) 2015 Elsevier Ltd. All rights reserved.