Source:http://linkedlifedata.com/resource/pubmed/id/21359278
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
14
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pubmed:dateCreated |
2011-3-24
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
1477-9234
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pubmed:author | |
pubmed:copyrightInfo |
© The Royal Society of Chemistry 2011
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pubmed:issnType |
Electronic
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pubmed:day |
14
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3484-9
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pubmed:meshHeading |
pubmed-meshheading:21359278-Absorption,
pubmed-meshheading:21359278-Crystallography, X-Ray,
pubmed-meshheading:21359278-Flavins,
pubmed-meshheading:21359278-Ligands,
pubmed-meshheading:21359278-Models, Molecular,
pubmed-meshheading:21359278-Molecular Conformation,
pubmed-meshheading:21359278-Organoplatinum Compounds,
pubmed-meshheading:21359278-Spectrophotometry, Ultraviolet,
pubmed-meshheading:21359278-X-Ray Diffraction
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pubmed:year |
2011
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pubmed:articleTitle |
Synthesis, structure and photophysical properties of a flavin-based platinum(II) complex.
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pubmed:affiliation |
Division of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Sapporo 060-0810, Japan. akoba@sci.hokudai.ac.jp
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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