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Figure 1
The mol­ecular structures of the title compounds, showing the atom-labelling schemes. Displacement ellipsoids are drawn at the 50% probability level at ca 110 K, and H atoms are shown as small spheres of arbitrary radii. (a) Compound (I)[link], which is located on the twofold rotation axis at (1, y, [{3 \over 4}]) passing through the ZnII ion; only atoms of the asymmetric unit are labelled. (b) Compound (II)[link], with atoms of the asymmetric unit labelled. The entire mol­ecule of the complex is located on a plane of mirror symmetry (x, [{1 \over 4}], z), which passes through the SnIV ion and is perpendicular to the plane of the DICNQ ligand.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 64| Part 3| February 2008| Pages m123-m126
doi:10.1107/S010827010800303X
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