Results 221 to 230 of about 5,608 (248)

Thermolysis of azobenzene

Russian Chemical Bulletin, 1993
Thermolysis of azobenzene in a melt and in solution results in the formation of aniline. The possible directions of the reaction are considered. Comparison of the enthalpies of the reaction proves that the cleavage of a π-bond in the N=N group to form a biradical intermediate is thermodynamically more favorable than that of a C-N π-bond.
M. F. Budyka, M. M. Kantor
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Photoisomerism of Azobenzenes

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Photodecomposition of azobenzenes

Journal of Chemical Technology and Biotechnology, 1980
AbstractUpon ultraviolet irradiation azobenzene and decafluoroazobenzene in cyclohexane and diethyl ether solutions decompose into phenylazo, phenylazomethylene and aniline radicals. The major products formed in cyclohexane solution are N‐cyclohexylaniline, N‐cyclohexylpentafluoroaniline, phenylazocyclohexane, pentafluorophenyl‐azocyclohexane, 1‐phenyl‐
Ahlam M. J. Ali, Zeki Y. Al‐Saigh
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Azobenzene as a photoswitchable mechanophore

Nature Chemistry, 2023
Azobenzene has been widely explored as a photoresponsive element in materials science. Although some studies have investigated the force-induced isomerization of azobenzene, the effect of force on the rupture of azobenzene has not been explored. Here we show that the light-induced structural change of azobenzene can also alter its rupture forces ...
Yiran Li, Bin Xue, Jiahui Yang, Julong Jiang, Jing Liu, Yanyan Zhou, Junsheng Zhang, Mengjiao Wu, Yuan Yuan, Zhenshu Zhu, Zhi Jian Wang, Yulan Chen, Yu Harabuchi, Tasuku Nakajima, Wei Wang, Satoshi Maeda, Jian Ping Gong, Yi Cao   +17 more
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Azobenzenes and catalysis

Catalysis Science & Technology, 2016
Azobenzene is the most extensively used class of chromophore in a large variety of applications.
Estelle Léonard, Floriane Mangin, Carole Villette, Muriel Billamboz, Christophe Len   +4 more
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Phenylation of azobenzene

Journal of the Chemical Society B: Physical Organic, 1970
The substituent effect of the phenylazo-group in homolytic phenylation has been measured with azobenzene as substrate and nitrobenzene as reference compound. Even after allowance for the large number of sites of substitution the phenylazo-group was shown to equal the nitro-group in its activating power.
Miller, Joseph, Paul, D.B., Wong, L.Y., Kelso, A.G.   +3 more
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Photoisomerization of Azobenzenes

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Direct ortho-mercuration reactions of azobenzene and ortho-substituted azobenzenes

Journal of Organometallic Chemistry, 1976
Abstract The mercuration of azobenzene occurred exclusively in the ortho -position to yield 2-chloromercuriazobenzene and a mixture which on iodination gave 2,2'and 2,6-diiodoazobenzene. Ten other ortho -substituted azobenzenes were mercurated and mercuration was found to occur predominately in an ortho -position.
Paul V. Roling, Diane D. Kirt, Joseph L. Dill, Steven Hall, Cheri Hollstrom   +4 more
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Azobenzene Photoswitching without Ultraviolet Light

Journal of the American Chemical Society, 2011
Most azobenzene-based photoswitches use UV light for photoisomerization. This can limit their application in biological systems, where UV light can trigger unwanted responses, including cellular apoptosis. We have found that substitution of all four ortho positions with methoxy groups in an amidoazobenzene derivative leads to a substantial (~35 nm) red
Andrew A, Beharry, Oleg, Sadovski, G Andrew, Woolley   +2 more
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Laterally Mounted Azobenzenes on Platforms

The Journal of Organic Chemistry, 2015
Triazatriangulenium ions have previously been used as platforms to prepare self-assembled monolayers of functional molecules such as azobenzenes with vertical orientation and that are free-standing on gold surfaces. We have now prepared azobenzenes that are spanned between two posts which are attached on two platforms.
Melanie, Hammerich, Rainer, Herges
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