Two isostructural triboluminescent lanthanide complexes

William Clegg, Ian Sage, Iain Oswald, Peter Brough, Grant Bourhill

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


(4-Di­methyl­amino­pyridine)­tris(2,2,6,6-tetra­methyl­heptane-3,5-dionato)­terbium(III), [Tb(C11H19O2)3(C7H10N2)], and its samarium analogue, [Sm(C11H19O2)3(C7H10N2)], are isostructural. Their polar space group is consistent with observed second harmonic generation and with the involvement of piezoelectric charging in their intense triboluminescence properties, which are of interest for the development of damage sensors in composite materials. The metals display irregular seven-coordination by one substituted pyridine and three chelating diketonate ligands, bond lengths to Tb being shorter than those to Sm.
Original languageEnglish
Pages (from-to)1323-1325
Number of pages2
JournalActa Crystallographica Section C: Structural Chemistry
Issue number11
Publication statusPublished - 30 Nov 2000


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