Synthesis and Luminescence of RhIII(phpy)2(E∪O) Complexes with phpyH = 2-Phenylpyridine and E∪OH = Tropolone, Flavonol and Lumichrome

Autor:	Horst Kunkely, Valeri Pawlowski, Arnd Vogler
Rok vydání:	2008
Předmět:	chemistry.chemical_compound Denticity Deprotonation chemistry Stereochemistry General Chemistry 2-Phenylpyridine Luminescence Phosphorescence Tropolone Fluorescence
Zdroj:	Zeitschrift für Naturforschung B. 63:963-967
ISSN:	1865-7117 0932-0776
DOI:	10.1515/znb-2008-0807
Popis:	The complexes RhIII(phpy)2(E∪O) with phpy− = deprotonated 2-phenylpyridine and E∪O− = bidentate anions of the biologically important compounds E∪O (troH = tropolone, flaH = flavonol and lumH = lumichrome) have been prepared and characterized with regard to their optical properties. The RhIII(phpy)2 fragment is a useful probe for the emission behavior of these complexes since the phpy IL triplet can serve as a marker. Only the IL states of tp− and lum− are located below the phpy IL states. While RhIII(phpy)2(fla) is quite remarkable because it shows an IL (fla) fluorescence, RhIII(phpy)2(lum) displays an IL (lum) phosphorescence as expected owing to the heavy-atom effect.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b1ce566815d53e53809a4467c5e67329 https://doi.org/10.1515/znb-2008-0807 Zobrazit plný text záznamu