Photoinduced intramolecular electron transfer of fluorescein and violgen, carbazole
A series of polyads consisting of covalently-(CH2)4-linked fluorescein with carbazole and violger.Live been synthesized and characterized The studies of absorption,emission spectra and fluorescence lifetime quenching indicated that the intramolecular fluorescence quenching of fluorescein by violgen...
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| Veröffentlicht in: | Science China. Chemistry 1997-10, Vol.40 (5), p.449-456 |
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| creator | 张宏 张曼华 沈涛 |
| description | A series of polyads consisting of covalently-(CH2)4-linked fluorescein with carbazole and violger.Live been synthesized and characterized The studies of absorption,emission spectra and fluorescence lifetime quenching indicated that the intramolecular fluorescence quenching of fluorescein by violgen is mainly a static process through the formation of non emission complex (fluorescence quenching efficiency φQ=0.97,lifetime quenching efficiency φH 0,quenching efficiency of formation of non-emission complex φC=0.97); while the quenching by carbazole is mainly a dynamic electron transfer process (φQ=0.63,φET=0.63,φC=0).In the violgen-fluorescein-carbazole triads,φQ=0.97,Q ET=0.65,φC=0.32,which suggests that the photoinduced interaction of fluorescein-carbazole pair and that of violgen-fluorescein pair are in a competitive process,the dynamic electron transfer from carbazole to fluorecein is dominant in the process The free energy change of the photoinduced electron transfer and the back reac-tiorns i |
| doi_str_mv | 10.1007/BF02875412 |
| format | Article |
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Chemistry, 1997-10, Vol.40 (5), p.449-456</ispartof><rights>Science in China Press 1997.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c217t-a8c12d6245d76b810759dcac15b9cb27a7d9d01f05cbc79750e8150ea34cbff43</citedby><cites>FETCH-LOGICAL-c217t-a8c12d6245d76b810759dcac15b9cb27a7d9d01f05cbc79750e8150ea34cbff43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/60113X/60113X.jpg</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2918576745?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,776,780,21368,21369,21370,21371,23236,27903,27904,33509,33682,33723,33984,34293,43638,43766,43784,43932,44046,64361,64365,72215</link.rule.ids></links><search><creatorcontrib>张宏 张曼华 沈涛</creatorcontrib><title>Photoinduced intramolecular electron transfer of fluorescein and violgen, carbazole</title><title>Science China. Chemistry</title><addtitle>SCIENCE CHINA Chemistry</addtitle><description>A series of polyads consisting of covalently-(CH2)4-linked fluorescein with carbazole and violger.Live been synthesized and characterized The studies of absorption,emission spectra and fluorescence lifetime quenching indicated that the intramolecular fluorescence quenching of fluorescein by violgen is mainly a static process through the formation of non emission complex (fluorescence quenching efficiency φQ=0.97,lifetime quenching efficiency φH 0,quenching efficiency of formation of non-emission complex φC=0.97); while the quenching by carbazole is mainly a dynamic electron transfer process (φQ=0.63,φET=0.63,φC=0).In the violgen-fluorescein-carbazole triads,φQ=0.97,Q ET=0.65,φC=0.32,which suggests that the photoinduced interaction of fluorescein-carbazole pair and that of violgen-fluorescein pair are in a competitive process,the dynamic electron transfer from carbazole to fluorecein is dominant in the process The free energy change of the photoinduced electron transfer and the back reac-tiorns i</description><subject>carbazole</subject><subject>Carbazoles</subject><subject>Efficiency</subject><subject>electron</subject><subject>Electron transfer</subject><subject>Emission analysis</subject><subject>Emission spectra</subject><subject>Fluorescein</subject><subject>Fluorescence</subject><subject>Free energy</subject><subject>intramolecular</subject><subject>Quenching</subject><subject>transfer</subject><subject>violgcn</subject><issn>1674-7291</issn><issn>1006-9291</issn><issn>1869-1870</issn><issn>1862-2771</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpFUE1LAzEQDaJg0V78BQFv4mo-NjvZoxarQkFBPS_ZfLRbtkmb7Ar6641U7BxmHsObN7yH0AUlN5QQuL2fEyZBlJQdoQmVVV1QCeQ44wrKAlhNT9E0pTXJxTlhICbo7XUVhtB5M2prcOeHqDaht3rsVcQ2gyEGj_PWJ2cjDg67fgzRJm07j5U3-LML_dL6a6xVbNV3Pj5HJ071yU7_5hn6mD-8z56Kxcvj8-xuUWhGYSiU1JSZipXCQNVKSkDURitNRVvrloECUxtCHRG61VCDIFbS3BQvdetcyc_Q5V53G8NutGlo1mGMPr9sslcpINsWmXW1Z-kYUorWNdvYbVT8aihpfnNrDrkdJPUq-OWu88t_NieEEsplDfwH6AprpA</recordid><startdate>19971001</startdate><enddate>19971001</enddate><creator>张宏 张曼华 沈涛</creator><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W94</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7XB</scope><scope>88I</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>M2P</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>19971001</creationdate><title>Photoinduced intramolecular electron transfer of fluorescein and violgen, carbazole</title><author>张宏 张曼华 沈涛</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c217t-a8c12d6245d76b810759dcac15b9cb27a7d9d01f05cbc79750e8150ea34cbff43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>carbazole</topic><topic>Carbazoles</topic><topic>Efficiency</topic><topic>electron</topic><topic>Electron transfer</topic><topic>Emission analysis</topic><topic>Emission spectra</topic><topic>Fluorescein</topic><topic>Fluorescence</topic><topic>Free energy</topic><topic>intramolecular</topic><topic>Quenching</topic><topic>transfer</topic><topic>violgcn</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>张宏 张曼华 沈涛</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-自然科学</collection><collection>中文科技期刊数据库- 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Chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>张宏 张曼华 沈涛</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photoinduced intramolecular electron transfer of fluorescein and violgen, carbazole</atitle><jtitle>Science China. Chemistry</jtitle><addtitle>SCIENCE CHINA Chemistry</addtitle><date>1997-10-01</date><risdate>1997</risdate><volume>40</volume><issue>5</issue><spage>449</spage><epage>456</epage><pages>449-456</pages><issn>1674-7291</issn><issn>1006-9291</issn><eissn>1869-1870</eissn><eissn>1862-2771</eissn><abstract>A series of polyads consisting of covalently-(CH2)4-linked fluorescein with carbazole and violger.Live been synthesized and characterized The studies of absorption,emission spectra and fluorescence lifetime quenching indicated that the intramolecular fluorescence quenching of fluorescein by violgen is mainly a static process through the formation of non emission complex (fluorescence quenching efficiency φQ=0.97,lifetime quenching efficiency φH 0,quenching efficiency of formation of non-emission complex φC=0.97); while the quenching by carbazole is mainly a dynamic electron transfer process (φQ=0.63,φET=0.63,φC=0).In the violgen-fluorescein-carbazole triads,φQ=0.97,Q ET=0.65,φC=0.32,which suggests that the photoinduced interaction of fluorescein-carbazole pair and that of violgen-fluorescein pair are in a competitive process,the dynamic electron transfer from carbazole to fluorecein is dominant in the process The free energy change of the photoinduced electron transfer and the back reac-tiorns i</abstract><cop>Heidelberg</cop><pub>Springer Nature B.V</pub><doi>10.1007/BF02875412</doi><tpages>8</tpages></addata></record> |
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| ispartof | Science China. Chemistry, 1997-10, Vol.40 (5), p.449-456 |
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| subjects | carbazole Carbazoles Efficiency electron Electron transfer Emission analysis Emission spectra Fluorescein Fluorescence Free energy intramolecular Quenching transfer violgcn |
| title | Photoinduced intramolecular electron transfer of fluorescein and violgen, carbazole |
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