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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
2011-3-24
pubmed:abstractText
We synthesized a thiosemicarbazone-functionalized flavin (Fl-(H)TSC: 2-[2-(3,4-dihydro-7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10(2H)-yl)ethylidene]-hydrazinecarbothioamide) and its Pt(II) complex [Pt(Fl-TSC)(2)], and characterized it using X-ray diffraction, UV-visible absorption and luminescence spectroscopy. X-ray structural analysis for [Pt(Fl-TSC)(2)] revealed that the structure of the isoalloxazine part was almost the same as that in lumiflavin (7,8,10-trimethylisoalloxazine), and the thiosemicarbazone moiety acted as a bidentate ligand to form a PtS(2)N(2) planar conformation. UV-visible absorption and luminescence spectra of these compounds were very similar to those of riboflavin, but the emission intensity and the lifetime decreased considerably. Theoretical calculations suggested that the charge-separated state (Fl?(-)-TSC?(+)) contributed to the faster quenching from the (1)?-?* emission state.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1477-9234
pubmed:author
pubmed:copyrightInfo
© The Royal Society of Chemistry 2011
pubmed:issnType
Electronic
pubmed:day
14
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3484-9
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Synthesis, structure and photophysical properties of a flavin-based platinum(II) complex.
pubmed:affiliation
Division of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Sapporo 060-0810, Japan. akoba@sci.hokudai.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't