Linked Life Data

17554914

Source:http://linkedlifedata.com/resource/pubmed/id/17554914

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2007-6-8
pubmed:abstractText
Three series of dinuclear complexes (Eux RE(1-x) L3 phen) of phenylglyoxylic acid and phenathroline with different molar ratios of Eu3+ to inert nuclei (RE = La3+, Y3+ and Gd3+) were synthesized. Their excitation and emission spectra were studied. The excitation spectra showed that the optimum excitation wavelengths of the complexes are all in the range of 350-360 nm, which belong to the excitation peaks of ligands, and the weak excitation peak of Eu3+ is at about 398 nm; The emission spectra showed that there are five emission bands at about 583, 595, 617, 654 and 703 nm respectively for all the complexes, due to (5)D0 - (7)F0, (5)D0 - (7)F1, (5)D0 - (7)F2, (5)D0 - (7)F3 and (5)D0 - (7)F4 transitions of Eu3+ respectively. The authors also found that the emission peak positions of Eu3+ shift the most in the complexes Eu(x) La(1-x) L3 phen, the position of (5)D0 - (7)F2 transition shifts 5.2 nm when the molar ratio of Eu3+:La3+ is 0.3: 0.7, but the addition of Y3+ and Gd3+ makes the emission peak positions of Eu3+ change less than that of La3+. Meanwhile the luminescence intensity of Eu3+ can be most enhanced by La3+ in all the complexes. The conclusion we found in the present paper could help search the luminescence materials with low cost and good luminescence properties.
pubmed:language
chi
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Mar
pubmed:issn
1000-0593
pubmed:author
pubmed:issnType
Print
pubmed:volume
27
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
525-9
pubmed:year
2007
pubmed:articleTitle
[Influence of inert nuclei (La3+, Y3+ and Gd3+) on fluorescence of europium complex with phenylglyoxylic acid and phenathroline].
pubmed:affiliation
Department of Materials Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China. suhb@eyou.com
pubmed:publicationType
Journal Article, English Abstract