Linked Life Data

18523877

Source:http://linkedlifedata.com/resource/pubmed/id/18523877

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-2-5
pubmed:abstractText
Novel poly(oxyethylene phosphate) tris(beta-diketonate) europium (III) complexes have been synthesized by an improved procedure using the Atherton-Todd reaction conditions. N-ethyldiisopropylamine has been used as a mild base and propylene oxide as an acid scavenger in order to obtain poly(oxyethylene phosphate) in yield and purity higher than those achieved by conventional methods. The compounds have been characterized by 1H, 13C, and 31P NMR and FTIR techniques. Their absorption, fluorescent excitation and emission spectra of chloroform and abs. ethanol solutions have been recorded and studied. The luminescent quantum yields and decay times have been determined and a dependence on the length of the oxyethylene spacer between phosphate groups has been established. The new polymer complexes are water soluble and have increased luminescence decay time in comparison with corresponding ternary complexes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1053-0509
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
85-95
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Synthesis and spectral properties of novel fluorescent poly(oxyethylene phosphate) tris(beta-diketonate) europium (III) complexes.
pubmed:affiliation
Laboratory of Organic Photochemistry, Faculty of Chemistry, University of Sofia, 1 James Bourchier blvd., 1164, Sofia, Bulgaria. sstanimirov@chem.uni-sofia.bg
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't