Figure 1
Atom-labelling scheme and atomic displacement parameters at 50% probability for non-H atoms. For (III) and (V), one of the disorder components is shown as semi-transparent. Symmetry codes: (i) -x+1, -y+1, -z+1; (ii) -x, -y+2, -z+1; (iii) -x+2, -y+1, -z; (iv) -x+2, -y+1, -z+2; (v) -x+2, -y+1, -z+1.  [article HTML]

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