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Hexakis(antipyrine-O)terbium(III) triiodide at 160 K: confirmation of a centrosymmetric structure for a brilliantly triboluminescent complex

Lookup NU author(s): Emeritus Professor Bill CleggORCiD


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The title complex, [Tb(C11H12N2O)(6)]I-3, has essentially the same structure at 160 K as at room temperature, and is clearly centrosymmetric without any disorder, contrary to some proposals regarding the possible mechanism of triboluminescence. Terbium has an octahedral coordination and lies in a position of (3) over bar symmetry, with all six antipyrine ligands crystallographically equivalent. One iodide anion lies in a special position of site symmetry (3) over bar, and another is on a threefold rotation axis, to give three iodide anions per terbium-centred complex cation.

Publication metadata

Author(s): Clegg W, Bourhill G, Sage I

Publication type: Article

Publication status: Published

Journal: Acta Crystallographica Section E: Structure Reports Online

Year: 2002

Volume: 58

Issue: part 7

Pages: M159-M161

ISSN (print):

ISSN (electronic): 1600-5368

Publisher: Wiley-Blackwell Publishing, Inc.


DOI: 10.1107/S1600536802005093


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