Synthesis, characterization and luminescence properties of lanthanide(III) compounds with 2,6-di(hydroxymethyl)pyridine and the related 2,6-di(hydroxymethyl-d2)pyridine ligand. X-ray structure of [Sm(2,6-di(hydroxymethyl)pyridine)3](NO3)3

The crystal structure of the compound [Sm(pdm)3](NO3)3 (in which pdm=2,6-di(hydroxymethyl)pyridine) is described. The compound crystallises in the monoclinic space group P21/n with a=7.620(7), b=19.05(1), c=19.96(8) Å and β=94.5(4)°. The nine coordinated Sm-ion is bound to three pdm ligands, each do...

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Published inInorganica Chimica Acta Vol. 300-302; pp. 1104 - 1108
Main Authors van Staveren, Dave R, van Albada, Gerard A, Gorter, Syb, Haasnoot, Jaap G, Reedijk, Jan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 30.04.2000
Subjects
Crystal structures
Lanthanide complexes
Luminescence
Crystal structures
Lanthanide complexes
Luminescence
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Summary:The crystal structure of the compound [Sm(pdm)3](NO3)3 (in which pdm=2,6-di(hydroxymethyl)pyridine) is described. The compound crystallises in the monoclinic space group P21/n with a=7.620(7), b=19.05(1), c=19.96(8) Å and β=94.5(4)°. The nine coordinated Sm-ion is bound to three pdm ligands, each donating a nitrogen and two oxygens, with distances Sm-N 2.571(11)–2.590(11) and Sm-O 2.422(10)–2.454(10) Å. Time-resolved measurements of solutions of EuCl3 and pdm and its deuterated analogue pdm-d4 in methanol and deuterated methanol revealed rate constants for depopulation of the excited state that vary from 0.44 to 1.32 ms−1.
ISSN:0020-1693
1873-3255
DOI:10.1016/S0020-1693(00)00019-0