The Triplet State of Indigo
نویسندگان
چکیده
منابع مشابه
The triplet state of indigo.
Indigo is one of the most emblematic molecules for the color blue, and is believed in many cultures to be charged with unique talismanic properties. The vivid color and high stability of this dye have led to an almost mythical status, from the “tecklet” of the Hebrews (believed to be a mixture with Tyrian Purple), through the blue of Napoleon Bonaparte(s army uniforms, to its current applicatio...
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A comprehensive investigation of the solution photophysics of a 5,5'-methylene-bridged polymeric indigo, a statistical copolymer consisting of indigo and N-acetylindigo units, was performed in organic solvents at room temperature and further compared with indigo. A complete spectral and photophysical characterization based on photoacoustic calorimetry, steady-state and time-resolved fluorescenc...
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hours the rotation was again taken: [ C ~ ] ~ D +77.2 * 5" (a% +1.75 * 0.1'; 1 = 2 dm.). Treatment of 17-Isopregnan-3( a)-ol-20-one with Hydrogen chloride.-In a manner similar to the above a solution of 44.7 mg. of 17-isopregnan-3(a)-ol-20-one made up to 5 ml. with 4.3% methanolic hydrogen chloride was refluxed for four hours and then the rotation was taken: [ a I s 1 ~ $75.6 * 5" ( C Y ~ ~ D $...
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Acid-switching of the triplet excited state in rhodamine-C60 dyads was achieved. The rhodamine moiety acts as an acid-activated visible light-harvesting antenna and C60 as the singlet energy acceptor and the spin converter, and production of the triplet state was enhanced in the presence of acid.
متن کاملOn the Importance of Electronic Symmetry for Triplet State Delocalization
The influence of electronic symmetry on triplet state delocalization in linear zinc porphyrin oligomers is explored by electron paramagnetic resonance techniques. Using a combination of transient continuous wave and pulse electron nuclear double resonance spectroscopies, it is demonstrated experimentally that complete triplet state delocalization requires the chemical equivalence of all porphyr...
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2007
ISSN: 0044-8249,1521-3757
DOI: 10.1002/ange.200604679