Structural Investigation of Di-μ-chloro-bis[saccharinatopyridinemercury(II)] by X-ray Diffraction and FT IR Spectroscopy

Orhideja Grupče, Gligor Jovanovski, Branko Kaitner, Panče Naumov

Research output: Contribution to journalArticle

Abstract

The solid state structure of [C12H9ClHgN2O3S]2 was determined and the appropriate assignment of the CO and SO2 stretching vibrations in the FT IR spectrum was made. Two monomeric chlorosaccharinatopyridinemercury(II) moieties are joined together forming a di-μ-chloro bridged dimmer by an inversion centre operation. The mercury atom is coordinated with two bridging chlorine and the pyridine and saccharinato nitrogen atoms in the shape of a heavily distorted tetrahedron. There is a significant difference between Hg1-Cl1 [2.533(2) Å] and Hg1-Cl1i [2.715(2) Å] distances as well as between Hg1-N11 [2.106(7) Å] and Hg1-N21 [2.209(7) Å] bond lengths. The valence bond angles at the metal atom deviate significantly from the standard tetrahedral value, ranging from 86.23(7)° for Cl1-Hg1-Cl1i to 131.5(3)° for N11-Hg1-N21. Discrete molecules are linked together by weak intermolecular C-H...O attractions at distances less than 3.5 Å.

Original languageEnglish (US)
Pages (from-to)465-476
Number of pages12
JournalCroatica Chemica Acta
Volume72
Issue number2-3
StatePublished - Sep 1 1999

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Keywords

  • Chloromercury(II) saccharinate
  • FT IR spectroscopy
  • Pyridine adduct
  • X-ray structure determination

ASJC Scopus subject areas

  • Chemistry(all)

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