Original scientific paper

The Endless Chain [AcOHg]_nn+ Cation. Crystal Structure of Acetatomercury(II) Nitrate - Mercury(II) Acetate (1/1)

Drago Grdenić ; Laboratory of General and Inorganic Chemistry, FacuLty of Science, University of Zagreb, P. O. Box 153, 41001 Zagreb, Yugoslavia
Milan Sikirica ; Laboratory of General and Inorganic Chemistry, FacuLty of Science, University of Zagreb, P. O. Box 153, 41001 Zagreb, Yugoslavia
Branka Korpar-Čolig ; Laboratory of General and Inorganic Chemistry, FacuLty of Science, University of Zagreb, P. O. Box 153, 41001 Zagreb, Yugoslavia

Abstract

Acetatomercury(II) nitrate-mercury(II) acetate (llI), (AcOHg)
N03 • Hg(AOch, not described so far in the chemical literature,'
was obtained by the reaction of mercury(II) nit rate hydrate with
acetic anhydride. Orthorhombic-disphenoidal crystals, as shown
by threedimensional X-ray diffraction analysis, are built of polymeric
[AcOHg]nn+cations, nitrate anions and mercury(II)-acetate
molecules. The mercury ions in the cation are bridged over by the
acetate ion through both oxygen atom s separately at the Hg-O
distances of 213(3) and 212(2) pm under the O-Hg-O arigle of
167(1)°. The mercury(II)-acetate molecule is in syn. conformation
with the Hg-O distances of 204(3) and 209(3) pm and the
O-Hg-O angle of 173(1)°. Crystal structure, determined from
1330 intensity data, was refined by full-rnatrix least-squares
method to R = 0.076 and Rw = 0.090.

Keywords

Hrčak ID:

175375

URI

https://hrcak.srce.hr/175375

Publication date:

30.3.1989.

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