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Figure 1
The mol­ecular structures of (a) (I)[link] and (b) (II)[link], showing the atom-labelling schemes. Displacement spheres (and the ellipsoid for S1) are drawn at the 50% probability level.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 71| Part 2| January 2015| Pages 168-172
doi:10.1107/S2056989015000663
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