Vibrational studies of the solid imidazole and pyridine adducts of metal(II) saccharinates. III. Zn(II) and Hg(II) imidazole saccharinates

Panče Naumov, Gligor Jovanovski, Aneta Todorovska

Research output: Contribution to journalArticlepeer-review

Abstract

Adducts of bis(o-sulfobenzimidato)zinc(II) and mercury(II) with imidazole are synthesized for the first time and their mid-infrared vibrational spectra at ambient conditions and at 77 K are coupled with the earlier spectra-structural inferences to predict aspects of the respective solid-state structures. The spectrum of the H2O-matrix isolated OD fundamentals in the hydrated zinc compound is also investigated. The structure of the latter adduct contrasts the octahedral isostructural tetrad of mixed imidazole-saccharinates [M(H2O)2(C3H4N2) 4](C7H4NO3S)2 [M=Mn(II), Fe(II), Co(II) and Ni(II)] in that it bears only a single crystallographic type of hydrogen bonded C2v water molecules and at least two structurally different o-sulfobenzimidate ligands, some of them likely utilized in a bridging fashion. The rotation and the partial ionic character of a pair of N-monodentate o-sulfobenzimidato ligands placed about 212-214 pm from the metal accommodates another pair of imidazole molecules in the tetrahedral arrangement around the metal in the neutral unhydrous mercury complex.

Original languageEnglish (US)
Pages (from-to)1903-1910
Number of pages8
JournalSpectrochimica Acta - Part A Molecular and Biomolecular Spectroscopy
Volume58
Issue number9
DOIs
StatePublished - Jul 1 2002

Keywords

  • FTIR spectroscopy
  • Imidazole adducts
  • Saccharinates
  • Spectra-structure correlations

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Spectroscopy

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