Results 231 to 240 of about 31,710 (279)

Photoisomerization of bentazone

Tetrahedron Letters, 1989
Abstract Photolysis of bentazone 1 in non-polar solvents e.g. n-hexane yields the unexpected photoproduct 2 . On irradiation in methanol and in water 1-methylbentazone and anthranilic acid isopropylamide as a degradation product are observed.
Klaus Hustert, Mohammed Mansour
openaire   +1 more source

"Seeing" and Controlling Photoisomerization by (Z)-/(E)-Isomers with Aggregation-Induced Emission Characteristics.

ACS Nano, 2019
Efficient photoisomerization of chromophores is important in living systems and structural constraints of protein pocket on chromophores are the probable reason for moving their dynamic reaction equilibrium forward.
Hui-Qing Peng, B. Liu, Junkai Liu, P. Wei, Haoke Zhang, T. Han, Ji Qi, J. Lam, Wenjun Zhang, B. Tang   +9 more
semanticscholar   +1 more source

Unusual concentration dependence of the photoisomerization reaction in donor-acceptor Stenhouse adducts

Photochemical and Photobiological Sciences, 2019
Donor-acceptor Stenhouse adducts comprise a new class of reversible photochromic molecules that absorb in the visible and near-infrared spectral regions.
Brandon F. Lui, Nathan T. Tierce, Fei Tong, Miranda M. Sroda, Hao Lu, Javier Read de Alaniz, C. Bardeen   +6 more
semanticscholar   +1 more source

Photoisomerization of Perfluoroaryltetrahedranes to Perfluoroarylcyclobutadienes

Journal of the American Chemical Society, 2011
Two perfluoroaryl-substituted cyclobutadiene derivatives, 6 and 7, were prepared as air- and moisture-sensitive red solids by the photochemical isomerization of the corresponding tetrahedranes (4 and 5, respectively). Remarkably, the 9,10-dicyanoanthracene-sensitized photochemical reaction of 4 also proceeded, giving 6, and the mechanism of this ...
Yusuke, Inagaki, Masaaki, Nakamoto, Akira, Sekiguchi   +2 more
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New Insight into the Photoprotection Mechanism of Plant Sunscreen: Adiabatic Relaxation Competing with Nonadiabatic Relaxation in the Cis→Trans Photoisomerization of Methyl Sinapate.

Journal of Physical Chemistry Letters, 2019
A great deal of thermal instable cis form photoisomerization products will be formed when the thermal stabletrans form of plant sunscreenssinapate esters upon ultraviolet radiation.Toreveal the photoisomerization mechanism ofcis-isomer, we explore the ...
Xi Zhao, Jian Luo, Songqiu Yang, Keli Han   +3 more
semanticscholar   +1 more source

Photoisomerization of Phenylazoalkenes

Helvetica Chimica Acta, 1981
Abstract(E)‐Phenylazocyclohexene (1) undergoes photoisomerization to s‐cis‐(Z)‐phenylazocyclohexene (2). Compound 2 reisomerizes to 1 at room temperature.
Joachim G. Schantl, Paul Margaretha
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Photoisomerization of Dihalomethanes

Angewandte Chemie International Edition in English, 1986
Discovering a new type of reaction with simple molecules is not an everyday occurrence: The isomers 2, which are formed upon matrix irradiation of the haloiodomethane 1, can be regarded as unsolvated contact ion pairs equation image . In this rearrangement, the iodine atom migrates from the carbon atom to the halogen atom. The isomers 2a (violet), 2b (
Günther Maier, Hans Peter Reisenauer
openaire   +1 more source

Design and photoisomerization dynamics of a new family of synthetic 2-stroke light driven molecular rotary motors.

Chemical Communications, 2019
A new family of light driven molecular rotary motors, which can be synthesized from easily available precursor compounds and which are capable of completing a full 360° revolution by two photoisomerization steps only, is proposed.
M. Filatov, M. Paolino, S. K. Min, C. Choi   +3 more
semanticscholar   +1 more source

Opto-Spintronics: Photoisomerization-Induced Spin State Switching at 300 K in Photochrome Cobalt-Dioxolene Thin Films.

Journal of the American Chemical Society, 2018
Controllable quantum systems are under active investigation for quantum computing, secure information processing, and nonvolatile memory. The optical manipulation of spin quantum states provides an important strategy for quantum control with both ...
M. Paquette, Daniel Plaul, Aiko Kurimoto, B. Patrick, N. Frank   +4 more
semanticscholar   +1 more source

Photoisomerization of phenylisothiazoles

Journal of the Chemical Society D: Chemical Communications, 1970
The photoisomerization of phenylisothiazoles into phenylthiazoles probably proceeds via tricyclic sulphonium cation intermediates.
Mamoru Ohashi, Akira Iio, Teijiro Yonezawa   +2 more
openaire   +1 more source