Positronium formation in lanthanide (III) trifluoroacetate with 3-picoline-N-oxide compounds

Authors
Marques-Netto, A Carvalho, CF de Carvalho, CAA Sinisterra, RD Brito, HF Machado, JC
Citation
A. Marques-netto et al., Positronium formation in lanthanide (III) trifluoroacetate with 3-picoline-N-oxide compounds, CHEM P LETT, 333(5), 2001, pp. 371-374
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
333
Issue
5
Year of publication
2001
Pages
371 - 374
Database
ISI
SICI code
0009-2614(20010119)333:5<371:PFIL(T>2.0.ZU;2-J
Abstract
Positron annihilation lifetime and Doppler broadening annihilation radiatio n line shape on the salts Ln(CF3COO)(3 .)xH(2)O and the adducts Ln(CF3COO)( 3)(3-picNO). xH(2)O (Ln = La-Pr, Sm-Lu and Y, and 3-picNO = 3 picoline-N-ox ide, x in the range 0.75-1.33) were performed. Positronium formation in the adducts, except for the europium complex, was observed. These results are discussed in terms of the electronic properties of the central metal ions. (C) 2001 Elsevier Science B.V. All rights reserved.