|
authors |
Soares-Santos, PCR; Paz, FAA; Ferreira, RAS; Klinowski, J; Carlos, LD; Trindade, T; Nogueira, HIS |
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nationality |
International |
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journal |
POLYHEDRON |
|
author keywords |
lanthanide complexes; N,O ligands; coordination modes; crystal structures; luminescence |
|
keywords |
CRYSTAL-STRUCTURE; LUMINESCENCE; CHEMISTRY; HEXAHYDRATE; LIGANDS; SM(III) |
|
abstract |
Samarium (III) complexes of picolinic acid (Hpic), 3-hydroxypicolinic acid (HpicOH) and 2-hydroxynicotinic acid (H(2)nicO) were prepared and characterised. The crystal structures of the samarium complexes K-2[Sm-2(PiC)(6)(mu-pic)(2)]center dot 7.5H(2)O (1), [Sm(picOH)(2-)(mu-HpicO)(H2O)]center dot 3H(2)O (2) and [Sm(HniCO)(2)(mu-HnicO)(H2O)center dot 5H(2)O (3) were determined by single-crystal X-ray diffraction studies. The coordination modes of the pyridine-carboxylic acids to Sm3+ centres have been investigated. These complexes showed room-temperature photoluminescence. (c) 2006 Elsevier Ltd. All rights reserved. |
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publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
|
issn |
0277-5387 |
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year published |
2006 |
|
volume |
25 |
|
issue |
12 |
|
beginning page |
2471 |
|
ending page |
2482 |
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digital object identifier (doi) |
10.1016/j.poly.2006.03.002 |
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web of science category |
Chemistry, Inorganic & Nuclear; Crystallography |
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subject category |
Chemistry; Crystallography |
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unique article identifier |
WOS:000239866800016
|
