Syntheses, structural characterization and spectroscopic studies of cadmium(II)-metal(II) cyanide complexes with 4-(2-aminoethyl)pyridine

Karaagac D., KÜRKÇÜOĞLU G. S., ŞENYEL M., Hokelek T.

JOURNAL OF MOLECULAR STRUCTURE, vol.1130, pp.80-88, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 1130
  • Publication Date: 2017
  • Doi Number: 10.1016/j.molstruc.2016.09.089
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.80-88
  • Keywords: Tetracyanonickelate(II) complex, Tetracyanopalladate(II) complex, Tetracyanoplatinate(II) complex, Cyanide complex, Cadmium(II) complex, 4-(2-Aminoethyl)pyridine complex, BRIDGED BIMETALLIC COMPLEXES, CRYSTAL-STRUCTURES, THERMAL ANALYSES, COORDINATION POLYMERS, MAGNETIC-PROPERTIES, SPECTRA, PYRIDINE, LIGANDS, TETRACYANONICKELATE(II), FRAMEWORK
  • Anadolu University Affiliated: Yes


Three new cadmium(II)-metal(II) cyanide complexes, [Cd(4aePY)(2)(H2O)(2)][Ni(CN)(4)] (1), [Cd(4aePY)(2)(H2O)(2)][Pd(cN)(4)] (2) and [Cd(4auPY)(2)(H2O)(2)][Pt(CN)(4)] (3) [4aepy = 4-(2-aminnethyl)pyridine], have been synthesized and characterized by elemental, thermal, FT-IR and Raman spectral analyses. The crystal structures of 1 and 2 have been determined by single crystal X-ray diffraction technique, in which they crystallize in the monoclinic system and C2/c space group. The M(II) [M(II) = Pd(II) and Pt(II)] ions are coordinated with the carbon atoms of the four cyanide groups in the square planar geometries and the [M(CN)(4)](2-) ions act as counter ions. The Cd(II) ions display an N4O2 coordination sphere with a distorted octahedral geometry, the nitrogen donors belonging to four molecules of the organic 4aepy that act as unidentate ligands and two oxygen atoms from aqua ligands. 3D supramolecular structures of 1 and 2 were occurred by M center dot center dot center dot pi and hydrogen bonding (N-H center dot center dot center dot N and O-H center dot center dot center dot N) interactions. Vibrational assignments of all the observed bands were given and the spectral properties were also supported the crystal structures of the complexes. A possible decompositions of the complexes were investigated in the temperature range 30-800 degrees C in the static atmosphere. (C) 2016 Elsevier B.V. All rights reserved.