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Spectroscopic and electrochemical properties of 1,3-diketonatoboron derivatives

1996; Wiley; Volume: 9; Issue: 1 Linguagem: Inglês

10.1002/(sici)1099-1395(199601)9

1099-1395

Yuan L. Chow, Carl I. Johansson, Yuhuang Zhang, René Gautron, Yang Li, A. Rassat, Shi-Zhu Yang,

Luminescence and Fluorescent Materials

Journal of Physical Organic ChemistryVolume 9, Issue 1 p. 7-16 Research Article Spectroscopic and electrochemical properties of 1,3-diketonatoboron derivatives Yuan L. Chow, Yuan L. Chow Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorCarl I. Johansson, Carl I. Johansson Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorYu-Huang Zhang, Yu-Huang Zhang Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorRene Gautron, Rene Gautron Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorLi Yang, Li Yang Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorAndre Rassat, Andre Rassat Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorShi-Zhu Yang, Shi-Zhu Yang Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this author Yuan L. Chow, Yuan L. Chow Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorCarl I. Johansson, Carl I. Johansson Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorYu-Huang Zhang, Yu-Huang Zhang Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorRene Gautron, Rene Gautron Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorLi Yang, Li Yang Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorAndre Rassat, Andre Rassat Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this authorShi-Zhu Yang, Shi-Zhu Yang Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, CanadaSearch for more papers by this author First published: January 1996 https://doi.org/10.1002/(SICI)1099-1395(199601)9:1 3.0.CO;2-HCitations: 54AboutPDF 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 Abstract A series of tetracoordinated boron complexes derived from various 1,3-diketones and bidentate ligands (oxalato, malonato, catecholato and difluoro) were prepared. Their absorption, fluorescence and phosphorescence spectra, at ambient temperature and 77 K, and cyclic voltammmetry in acetonitrile were studied. The boron complexes exhibited high molar absorptivity and fluorescence intensities as compared with the parent diketones; the phenomena are in agreement with the lowest singlet excited state possessing the ϕ, ϕ,* configuration with a rigid chelate structure. The redox potential differences correlate linearly with the lowest singlet (Es) as well as the triplet (ET) excited state energy with slopes lower than unity. These linear correlations re-state that the electron exchange and Coulombic integral also vary proportionally to the potential differences. From these correlations, it is possible to determine Es and ET of those boron complexes that do not give fluorescence and phosphorescence. Citing Literature Volume9, Issue1January 1996Pages 7-16 RelatedInformation