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Figure 1
The asymmetric units of (a) (I)[link] and (b) (II)[link], showing the atom-labelling schemes. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (ii) −x + 2, y, −z + [3 \over 2]; (iii) −x + 2, −y, −z + 1; (vi) x, −y, z + [1 \over 2].]

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 67| Part 1| December 2011| Pages m5-m8
doi:10.1107/S0108270110046950
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