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Figure 2
The two independent cyclic tetramers of (I[link]). For the sake of clarity, only one of the disordered rings in mol­ecule 2 is shown.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 58| Part 7| June 2002| Pages o409-o415
doi:10.1107/S0108270102009381
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