Mixed-ligand metal succinate complexes with 1,10-phenanthroline and ethylenediamine: Synthesis, characterization, spectroscopic and thermal studies. Crystal structure of succinatocobalt(II) complex with phenanthroline

V T Yilmaz, S Demir, O Andac, W T A Harrison

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Abstract

The novel mixed-ligand metal succinate (suc) complexes with 1, 10-phenanthroline (phen) and ethylenediamine (en) have been synthesized and characterized by elemental analyses, magnetic moments, UV-VIS and IR spectra. Thermal reactivity of the complexes was studied in air using DTA and TG, and decomposition of the complexes resulted in the formation of corresponding metal oxides. The crystal structure of the [Co(suc)(H2O)(phen)(2)] . 1.5H(2)O . C4H10O complex was determined by x-ray diffraction. The Co(II) complex crystallizes as a monobutanol solvate. In the complex, the cobalt ion lies on an inversion center and displays a distorted octahedral coordination with one aqua, one suc and two phen ligands. The suc ligand acts as a monodentate ligand through one of the negatively charged O atoms, while phen behaves as N-donor bidentate ligand. The crystal also contains disordered lattice water molecules and the structure is stabilized by extensive hydrogen bonding to form a three-dimensional infinite network.

Original languageEnglish
Pages (from-to)863-872
Number of pages10
JournalJournal of Coordination Chemistry
Volume55
DOIs
Publication statusPublished - 2002

Keywords

  • succinate complexes
  • 1,10-phenanthroline complexes
  • ethylenediamine complexes
  • crystal structure
  • thermal analysis
  • ACID
  • CO(II)
  • NI(II)
  • CU(II)
  • ZN(II)

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