Luminescent Transition Metal Complexes Research Articles

Applications of Luminescent Transition Metal Complexes to Sensor Technology and Molecular Probes

An overview of the applications of luminescent transition metal complexes to sensor technology is presented. In addition to general considerations, a number of specific systems are discussed including oxygen, pH, carbon dioxide, temperature, and immunoassay sensors. Applications of the complexes to molecular probes are also covered including chirality and conformational proves, water exposure sensors, and dynamic probes. Problem areas such as photostability, excitability, immobilization chemistry, the existence multiple responses in the same molecule, and substrate-support interactions are discussed. Also covered is the very difficulty problem of unambiguously interpreting the complex kinetic and chemical behavior of real sensor systems.

Photo-Induced Energy or Electron Transfer in Supramolecular Systems: Applications to Molecular Wires and Light-Harvesting Sensors

A synthetic protocol is summarized that provides access to various multi-site ligands (bipyridines, terpyridines...) bridged by alkyne spacer comprising one to four ethynyl subunits. These ditopic ligands have been used to prepare luminescent transition-metal complexes in which long-range electronic coupling between remote units has been observed. Intramolecular triplet energy transfer, photon migration and light-induced electron transfer occur by way of extremely rapid superexchange involving energetic states localized on the bridge. Very long triplet-energy excited-state have been measured in the terpyridine complexes resulting from a selective decoupling of the MLCT triplet state and higher-energy metal-centered (MC) and ligand-centered excited states (LC). The level of electronic communication along the molecular wire can be modulated by insertion of Pt(PnBu3)2 insulating groups into the bridge. These metallo-insulating groups provide further means to manipulate the stereochemistry around the centra...

Applications of highly luminescent transition metal complexes in polymer systems

AbstractAdvances in understanding the photophysics and photochemistry of transition metal complexes offer opportunities to utilize these materials as luminescence sensors and probes. However, heterogeneity has an enormous effect on luminescence, quenching, and photochemistry. An intimate understanding of the detailed interactions between the complexes and their environment will be necessary before the rational design of new high performance sensors and probes can be achieved. Such understanding is fairly well established for homogeneous media, but it is still in its infancy in solid supports (surfaces and polymers). We present case studies involving luminescent metal complexes bound to a variety of polymer systems. Both their potential and the difficulties inherent in these composite systems are presented. We discuss tools that have proved useful or are likely to be valuable in unraveling these complex systems.

Design and applications of highly luminescent transition metal complexes

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDesign and Applications of Highly Luminescent Transition Metal ComplexesJ. N. Demas and Β. A. DeGraffCite this: Anal. Chem. 1991, 63, 17, 829A–837APublication Date (Print):September 1, 1991Publication History Published online30 May 2012Published inissue 1 September 1991https://doi.org/10.1021/ac00017a719RIGHTS & PERMISSIONSArticle Views1476Altmetric-Citations187LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (8 MB) Get e-Alerts Get e-Alerts

Design and Applications of Highly Luminescent Transition Metal Complexes

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDesign and Applications of Highly Luminescent Transition Metal ComplexesJ. N. Demas and Β. A. DeGraffCite this: Anal. Chem. 1991, 63, 17, 829A–837APublication Date (Print):September 1, 1991Publication History Published online30 May 2012Published inissue 1 September 1991https://doi.org/10.1021/ac00017a719RIGHTS & PERMISSIONSArticle Views1509Altmetric-Citations189LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (8 MB) Get e-Alerts Get e-Alerts

Photophysics and photochemistry of oxygen sensors based on luminescent transition-metal complexes

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotophysics and photochemistry of oxygen sensors based on luminescent transition-metal complexesE. R. Carraway, J. N. Demas, B. A. DeGraff, and J. R. BaconCite this: Anal. Chem. 1991, 63, 4, 337–342Publication Date (Print):February 15, 1991Publication History Published online1 May 2002Published inissue 15 February 1991https://doi.org/10.1021/ac00004a007RIGHTS & PERMISSIONSArticle Views2659Altmetric-Citations491LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (658 KB) Get e-Alerts Get e-Alerts

Single photon counting lifetime measurements of weak, long-lived samples

Long-lived luminescent transition-metal complexes in heterogeneous environments have complicated decays that require the wide dynamic range of an SPC instrument for proper analysis. As their luminescence lifetimes are 2-3 orders of magnitude longer (hundreds of nanoseconds to microseconds) than the 3-5 ns full width at half maximum flash excitation profile, it seemed that by fitting the data at times well beyond the flash spike, we could neglect the flash

ChemInform Abstract: ENERGY TRANSFER FROM LUMINESCENT TRANSITION METAL COMPLEXES TO OXYGEN

Chemischer InformationsdienstVolume 8, Issue 34 Physical Organic Chemistry ChemInform Abstract: ENERGY TRANSFER FROM LUMINESCENT TRANSITION METAL COMPLEXES TO OXYGEN J. N. DEMAS, J. N. DEMASSearch for more papers by this authorE. W. HARRIS, E. W. HARRISSearch for more papers by this authorR. P. MCBRIDE, R. P. MCBRIDESearch for more papers by this author J. N. DEMAS, J. N. DEMASSearch for more papers by this authorE. W. HARRIS, E. W. HARRISSearch for more papers by this authorR. P. MCBRIDE, R. P. MCBRIDESearch for more papers by this author First published: August 23, 1977 https://doi.org/10.1002/chin.197734041AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume8, Issue34August 23, 1977 RelatedInformation

Energy transfer from luminescent transition metal complexes to oxygen

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEnergy transfer from luminescent transition metal complexes to oxygenJ. N. Demas, E. W. Harris, and R. P. McBrideCite this: J. Am. Chem. Soc. 1977, 99, 11, 3547–3551Publication Date (Print):May 1, 1977Publication History Published online1 May 2002Published inissue 1 May 1977https://doi.org/10.1021/ja00453a001RIGHTS & PERMISSIONSArticle Views1457Altmetric-Citations221LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (626 KB) Get e-Alerts Get e-Alerts