Results 261 to 270 of about 254,167 (296)
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Activated Decay Pathways for Planar vs Twisted Singlet Phenylalkenes

Journal of the American Chemical Society, 2003
The ground state conformation, spectroscopy, and photochemical behavior of styrene and eight of its vinyl- and ring-methylated derivatives have been investigated. Introduction of methyl groups at the alpha-position of the vinyl group or the ortho positions of the phenyl results in increased phenyl-vinyl dihedral angles.
Frederick D, Lewis, Xiaobing, Zuo
openaire   +2 more sources

Highly Activated Vinyl Hydrogen in a Significantly Twisted Styrene

The Journal of Organic Chemistry, 2006
The novel example of a vinylic hydrogen more reactive than a benzylic hydrogen was found by treatment of a twisted styrene derivative with a strong base followed by D(2)O quenching. In this paper, the full details of the examples of the highly activated vinyl hydrogens in twisted styrene derivatives are described, with a discussion on the correlation ...
Hajime, Mori   +3 more
openaire   +2 more sources

Twisted-nematic liquid-crystal pixelated active lens

Optics Communications, 1998
Liquid-crystal active lenses are classical imaging systems in which a liquid-crystal spatial light modulator is placed in a pupil plane. The modulator controls the phase of the optical wave in the pupil and achieves an arbitrary wavefront shape, that is limited only by the available modulation depth and resolution.
openaire   +1 more source

Excitonic devices with van der Waals heterostructures: valleytronics meets twistronics

Nature Reviews Materials, 2022
Alberto Ciarrocchi   +2 more
exaly  

Graphene bilayers with a twist

Nature Materials, 2020
Eva Y Andrei, Allan H Macdonald
exaly  

Emerging exciton physics in transition metal dichalcogenide heterobilayers

Nature Reviews Materials, 2022
Emma C Regan, Yongxin Zeng, Long Zhang
exaly  

Mapping the twist-angle disorder and Landau levels in magic-angle graphene

Nature, 2020
Aviram Uri, Yuan Cao, Kousik Bagani
exaly  

Twist-angle-dependent interlayer exciton diffusion in WS2–WSe2 heterobilayers

Nature Materials, 2020
Long Yuan, Biyuan Zheng, Jens Kunstmann
exaly  

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