Results 91 to 100 of about 4,123 (167)
CT excitation of [Ir(azulene)(1,5-cyclooctadiene)]+. Spectroscopy and photochemistry
, 2006 The complex [Ir(azulene)(1,5-cyclocta-diene)](+) shows long-wavelength absorptions which are assigned to spin-allowed (lambda(max) = 536 nm) and spin-forbidden (675 nm) transitions. They are of mixed MLCT (Ir -> azulene) and ILCT (azulene) character.
Vogler, Arnd, Kunkely, Horst
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CHIMIA, 1996 The historical development of research on the blue color of certain fractions of distilled essential oils as such from chamomille, yarrow, wormwood, and many other sources is described. In 1863, Septimus Piesse suggested the name 'azulene', from
Hans-Jürgen Hansen
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Zur Kenntnis der Azulene, V. Die Nucleophile Substitution des Azulens
, 1961 Ebenso wie in 4- und 8-Stellung können Azulene auch an C-6 nucleophil substituiert werden. 4.8-Disubstituierte Azulene addieren alkalimetallorganische Verbindungen unter Bildung von 4.6.8-trisubstituierten Azuleniat-Salzen, die sich leicht in die ...
Hafner, Klaus +2 more
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Electrical Conductance and Diode-Like Behavior of Substituted Azulene
, 2017 Nonequilibrium Green’s function approach combined with density functional theory has been used to study electrical conductance of amino and cyano substituted azulene.
Kazunari Yoshizawa (1415584) +2 more
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Self-quenching of azulene fluorescence in cyclohexane [PDF]
, 1994 The self-quenching of azulene fluorescence in cyclohexane was studied by steady-state and time resolved fluorescence measurements. The quenching proceeds by a short-range exchange type non-radiative energy transfer from S, to S, owing to a substantial ...
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Acta Chimica Slovenica, 2013 In this study electrophilic affinities were calculated at all reactive positions of azulene in electrophilic aromatic substitutions. Structures of cationic intermediates and products were optimized at HF/6-31+G* and B3LYP/6-31+G** levels of theory, and ...
Nader Zabarjad Shiraz +2 more
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, 2004 Azulene and a nitroxyl radical have been incorporated in the same helical peptide template in order to study the excited state quenching of the chromophore by the radical.
SARTORI, ELENA +5 more
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A Convenient Synthesis of Azulene
, 2018 An improved and scalable synthesis of azulene has been developed by the application of pyrrolidine as a reagent and continuous steam distillation and extraction for workup.
Moritz Eberspächer, Heinz Langhals
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Zur Kenntnis der Azulene, XI. Nucleophile Substitution halogenierter Azulene
, 1962 Es werden Darstellung und Eigenschaften einiger in 1- bzw. 6-Stellung halogenierter Azulene und deren Reaktionen mit nucleophilen Agenzien beschrieben. Durch die Polarisation des Azulens bedingt, erfolgen nucleophile Austauschreaktionen im 7-Ring leicht,
Hafner, Klaus +2 more
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Poly(2,6-azulene vinylene)s: Azulene Orientation Control and Property Studies
A class of nonbenzenoid analogues of poly(p-phenylenevinylene)s (PPVs), 2,6-azulene-vinyl-based conjugated polymers (CPs) r-PAzV, hhtt-PAzV, and ht-PAzV, have been reported with different dipole arrangements of azulene units, where the five-membered ...
Doan Vu (12309387) +6 more
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