Lanthanide complexes of 2,6-dihydroxybenzoic acid: Synthesis, crystal structures and luminescent properties of [nBu(4)N](2)[Ln(2,6-dhb)(5)(H(2)O)(2)] (Ln = Sm and Tb)
authors Soares-Santos, PCR; Nogueira, HIS; Paz, FAA; Ferreira, RAS; Carlos, LD; Klinowski, J; Trindade, T
nationality International
journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
author keywords lanthanides; O ligands; luminescence; triboluminescence
keywords DIHYDROXYBENZOIC ACIDS; EUROPIUM; IONS; DIHYDRATE
abstract Lanthanide complexes of 2,6-dihydroxybenzoic acid (2,6-Hdhb), namely [nBu(4)N](2)[Ln(2,6-dhb)(5)(H(2)O)(2)] [Ln = Sm (1) and Tb (2)], were synthesized and their crystal structures determined by single-crystal X-ray diffraction studies. The 2,6-dhb-ligand coordinates to the lanthanide cations through the carboxylate group in a monodentate or bidentate chelating coordination mode. The compounds were further characterised using IR, Raman, (1)H and (13)C NMR spectroscopy and elemental analysis. Photoluminescence measurements were performed on both compounds. In particular, the terbium complex 2 shows intense photoluminescence both in the solid state and in ethanolic solution. Compound 2 also exhibits triboluminescence. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
publisher WILEY-BLACKWELL
issn 1434-1948
year published 2003
issue 19
beginning page 3609
ending page 3617
digital object identifier (doi) 10.1002/ejic.20030084
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000186050300013
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