Unusual luminescence characteristics of aminobiphenyls
Analysis of fluorescence solvatochromic shifts of ortho, meta and para aminobiphenyls reveals that the change in dipolemoment of m-aminobiphenyl on excitation is more when compared to other isomers. This change is due to the resonance interaction of unsubstituted phenyl ring with NH 2 group at meta...
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| Veröffentlicht in: | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2002-11, Vol.58 (13), p.2931-2940 |
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| container_title | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy |
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| creator | Kothai Nayaki, S Swaminathan, M |
| description | Analysis of fluorescence solvatochromic shifts of
ortho,
meta and
para aminobiphenyls reveals that the change in dipolemoment of
m-aminobiphenyl on excitation is more when compared to other isomers. This change is due to the resonance interaction of unsubstituted phenyl ring with NH
2 group at
meta position in the excited singlet state. The fluorimetric titration curves of three aminobiphenyls are found to be different from each other. The stretched sigmoidal curves obtained for
m-aminobiphenyl indicates that the rates of proton transfer in S
1 state are comparable to the rates of fluorescence. |
| doi_str_mv | 10.1016/S1386-1425(02)00083-5 |
| format | Article |
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ortho,
meta and
para aminobiphenyls reveals that the change in dipolemoment of
m-aminobiphenyl on excitation is more when compared to other isomers. This change is due to the resonance interaction of unsubstituted phenyl ring with NH
2 group at
meta position in the excited singlet state. The fluorimetric titration curves of three aminobiphenyls are found to be different from each other. The stretched sigmoidal curves obtained for
m-aminobiphenyl indicates that the rates of proton transfer in S
1 state are comparable to the rates of fluorescence.</description><identifier>ISSN: 1386-1425</identifier><identifier>DOI: 10.1016/S1386-1425(02)00083-5</identifier><identifier>PMID: 12477039</identifier><language>eng</language><publisher>England: Elsevier B.V</publisher><subject>Aminobiphenyl Compounds - chemistry ; Aminobiphenyls ; Fluorimetric titration ; Hydrogen-Ion Concentration ; Kinetics ; Luminescence ; Prototropism ; Solvatochromic shifts ; Spectrometry, Fluorescence ; Unusual luminescence</subject><ispartof>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2002-11, Vol.58 (13), p.2931-2940</ispartof><rights>2002 Elsevier Science B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-f2e105c983db216baab7d90795bf8f55c13c1b831e25ebdcb391e851e34f17943</citedby><cites>FETCH-LOGICAL-c361t-f2e105c983db216baab7d90795bf8f55c13c1b831e25ebdcb391e851e34f17943</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1386-1425(02)00083-5$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12477039$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kothai Nayaki, S</creatorcontrib><creatorcontrib>Swaminathan, M</creatorcontrib><title>Unusual luminescence characteristics of aminobiphenyls</title><title>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy</title><addtitle>Spectrochim Acta A Mol Biomol Spectrosc</addtitle><description>Analysis of fluorescence solvatochromic shifts of
ortho,
meta and
para aminobiphenyls reveals that the change in dipolemoment of
m-aminobiphenyl on excitation is more when compared to other isomers. This change is due to the resonance interaction of unsubstituted phenyl ring with NH
2 group at
meta position in the excited singlet state. The fluorimetric titration curves of three aminobiphenyls are found to be different from each other. The stretched sigmoidal curves obtained for
m-aminobiphenyl indicates that the rates of proton transfer in S
1 state are comparable to the rates of fluorescence.</description><subject>Aminobiphenyl Compounds - chemistry</subject><subject>Aminobiphenyls</subject><subject>Fluorimetric titration</subject><subject>Hydrogen-Ion Concentration</subject><subject>Kinetics</subject><subject>Luminescence</subject><subject>Prototropism</subject><subject>Solvatochromic shifts</subject><subject>Spectrometry, Fluorescence</subject><subject>Unusual luminescence</subject><issn>1386-1425</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkElPwzAQhX0A0VL4CaCcEBwCHjtOnBNCFZtUiQP0bNnORDXKUuwEqf8edxEcOY00771ZPkIugN4ChfzuHbjMU8iYuKbshlIqeSqOyPS3PSGnIXxGASSjJ2QCLCsKysspyZfdGEbdJM3Yug6Dxc5iYlfaazugd2FwNiR9nego98atV9htmnBGjmvdBDw_1BlZPj1-zF_Sxdvz6_xhkVqew5DWDIEKW0peGQa50doUVUmLUpha1kJY4BaM5IBMoKms4SWgFIA8q6EoMz4jV_u5a99_jRgG1bp4Y9PoDvsxqIIVec5YGY1ib7S-D8FjrdbetdpvFFC1haR2kNSWhqJM7SApEXOXhwWjabH6Sx0IRcP93oDxzW-HXgXrtpAq59EOqurdPyt-AFXPeNo</recordid><startdate>20021101</startdate><enddate>20021101</enddate><creator>Kothai Nayaki, S</creator><creator>Swaminathan, M</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20021101</creationdate><title>Unusual luminescence characteristics of aminobiphenyls</title><author>Kothai Nayaki, S ; Swaminathan, M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-f2e105c983db216baab7d90795bf8f55c13c1b831e25ebdcb391e851e34f17943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Aminobiphenyl Compounds - chemistry</topic><topic>Aminobiphenyls</topic><topic>Fluorimetric titration</topic><topic>Hydrogen-Ion Concentration</topic><topic>Kinetics</topic><topic>Luminescence</topic><topic>Prototropism</topic><topic>Solvatochromic shifts</topic><topic>Spectrometry, Fluorescence</topic><topic>Unusual luminescence</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kothai Nayaki, S</creatorcontrib><creatorcontrib>Swaminathan, M</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kothai Nayaki, S</au><au>Swaminathan, M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Unusual luminescence characteristics of aminobiphenyls</atitle><jtitle>Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy</jtitle><addtitle>Spectrochim Acta A Mol Biomol Spectrosc</addtitle><date>2002-11-01</date><risdate>2002</risdate><volume>58</volume><issue>13</issue><spage>2931</spage><epage>2940</epage><pages>2931-2940</pages><issn>1386-1425</issn><abstract>Analysis of fluorescence solvatochromic shifts of
ortho,
meta and
para aminobiphenyls reveals that the change in dipolemoment of
m-aminobiphenyl on excitation is more when compared to other isomers. This change is due to the resonance interaction of unsubstituted phenyl ring with NH
2 group at
meta position in the excited singlet state. The fluorimetric titration curves of three aminobiphenyls are found to be different from each other. The stretched sigmoidal curves obtained for
m-aminobiphenyl indicates that the rates of proton transfer in S
1 state are comparable to the rates of fluorescence.</abstract><cop>England</cop><pub>Elsevier B.V</pub><pmid>12477039</pmid><doi>10.1016/S1386-1425(02)00083-5</doi><tpages>10</tpages></addata></record> |
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| ispartof | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2002-11, Vol.58 (13), p.2931-2940 |
| issn | 1386-1425 |
| language | eng |
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| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | Aminobiphenyl Compounds - chemistry Aminobiphenyls Fluorimetric titration Hydrogen-Ion Concentration Kinetics Luminescence Prototropism Solvatochromic shifts Spectrometry, Fluorescence Unusual luminescence |
| title | Unusual luminescence characteristics of aminobiphenyls |
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