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Figure 4
The mol­ecular structure of two crystallographically independent Y4− anions in (III)[link] (left). A comparison of the geometry of respective anions (right). The common reference points are N1, C1, C2 and N2. Disordered atoms O31C and O32C have been omitted for clarity.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 67| Part 7| June 2011| Pages m266-m274
doi:10.1107/S010827011102244X
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