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, 2003The 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
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Highly Activated Vinyl Hydrogen in a Significantly Twisted Styrene
The Journal of Organic Chemistry, 2006The 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
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Twisted-nematic liquid-crystal pixelated active lens
Optics Communications, 1998Liquid-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.
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Designed growth of large bilayer graphene with arbitrary twist angles
Nature Materials, 2022Can Liu, Zehui Li
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Excitonic devices with van der Waals heterostructures: valleytronics meets twistronics
Nature Reviews Materials, 2022Alberto Ciarrocchi +2 more
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Emerging exciton physics in transition metal dichalcogenide heterobilayers
Nature Reviews Materials, 2022Emma C Regan, Yongxin Zeng, Long Zhang
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Mapping the twist-angle disorder and Landau levels in magic-angle graphene
Nature, 2020Aviram Uri, Yuan Cao, Kousik Bagani
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Twist-angle-dependent interlayer exciton diffusion in WS2–WSe2 heterobilayers
Nature Materials, 2020Long Yuan, Biyuan Zheng, Jens Kunstmann
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