Photosensitized luminescence of novel beta-diketonato Nd(III) complexes insolution

Citation
M. Iwamuro et al., Photosensitized luminescence of novel beta-diketonato Nd(III) complexes insolution, PHYS CHEM P, 2(10), 2000, pp. 2291-2296
Citations number
43
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
ISSN journal
1463-9076 → ACNP
Volume
2
Issue
10
Year of publication
2000
Pages
2291 - 2296
Database
ISI
SICI code
1463-9076(2000)2:10<2291:PLONBN>2.0.ZU;2-U
Abstract
Photosensitized luminescence in the near-infrared region of five low vibrat ional beta-diketonato neodymium(III) complexes, tris(1,1,1,5,5,5-hexafluoro acetylacetonato)neodymium(III) (1), tris(4,4,5,5,5-pentafluoro-1-pentafluor ophenyl-1,3-pentanedionato)neodymium(III) (2), tris(4,4,5,5,6,6,6-heptafluo ro-1-pentafluorophenyl-1,3-hexanedionato)neodymium(III) (3), tris(4,4,5,5,6 ,6,7,7,8,8,9,9,10,10,10-pentadecafluoro-1-pentafluorophenyl-1,3-decanediona to)neodymium(III) (4), and tris[bis(pentafluorobenzoyl)methanato]neodymium( III) (5), were examined by the selective excitation of the ligand moieties in THF-d(8). The intramolecular energy transfer efficiencies from the excit ed ligands to the central Nd(III) ion were determined and the order of 1 < 2 < 3 < 4 < 5 was obtained. The order of the overlap area between the phosp horescence due to the ligand moieties and the absorption due to Nd(III) in the 400-650 nm spectral region was also increased in the above order. These results suggest that the energy matching of the donor and the acceptor is decisive for the efficient photosensitized luminescence of Nd(III) complexe s.