Results 271 to 280 of about 13,470 (297)

Intrinsic chirality of triple‐layered naphthalenophane and related graphs

Journal of Mathematical Chemistry, 1998
As more and more topologically complex molecules are being synthesized, topological techniques become increasingly important in understanding molecular structure. In particular, topology can be a powerful tool in the study of molecular chirality. While chemical chirality is determined on the basis of experimental evidence, we can define a molecular ...
Flapan, Erica, Forcum, Brian
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Depolarization properties of a periodic sequence of chiral and material layers

Journal of the Optical Society of America A, 2008
We consider the electromagnetic field due to the reflection and transmission of a plane wave by a bounded periodic structure containing chiral layers. The problem is solved using the 2x2-block-representation transfer-matrix formulation. The frequency and angular dependences of the reflection and transmission coefficients are given.
Vladimir R, Tuz, Vadim B, Kazanskiy
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Chiral Separations by Thin-Layer Chromatography

1991
Recent progress in thin-layer chromatography (TLC) as a means for the separation of enantiomers is reviewed. The areas discussed include separations using ligand exchange, ion-pair, cyclodextrin and “Pirkle”-based chiral TLC systems. The use of these systems for the chromatographic separation of a variety of enantiomers is described and the robustness,
I. D. Wilson, T. D. Spurway, L. Witherow, R. J. Ruane, K. Longden   +4 more
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Prospects for Chiral Thin-Layer Chromatography

1988
The potential benefits arising from the development of robust and efficient methods for enantiomer separation by thin-layer chromatography (TLC) are discussed and the current state of the art in chiral TLC reviewed. The relative lack of progress in developing suitable chiral stationary phases (CSP s) for TLC of wide general applicability is noted and ...
I. D. Wilson, R. J. Ruane
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Giant asymmetric transmission of circular polarization in layer-by-layer chiral metamaterials

Applied Physics Letters, 2013
In this paper, two kinds of bi-layered chiral metamaterials were proposed to enhance the asymmetric transmission effects for circular polarized electromagnetic waves which are only found in planar chiral metamaterials according to previous studies. It was found that the magnitude of the asymmetric transmission parameters mainly depends on the distances
Lin Wu, Zhenyu Yang, Yongzhi Cheng, Ming Zhao, Rongzhou Gong, Yu Zheng, Ji'an Duan, Xiuhua Yuan   +7 more
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Quasi-static analysis of scattering from a chiral-layered sphere in chiral metamaterial

Journal of Electromagnetic Waves and Applications, 2015
Quasi-static analysis of electromagnetic scattering from a layered sphere is presented in this paper. Three regions occupying sphere, layer and host medium are assumed to be of chiral metamaterial of different parameters. Fields in three regions are determined by using appropriate boundary conditions.
Abdul Salam, Aqeel Abbas Syed, Qaisar Abbas Naqvi   +2 more
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A chiral, 16-ring channel framework and a layered caesium zincoarsenate

Chemical Communications, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Wiggin, Seth B., Weller, Mark T.
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The MFS for Electromagnetic Scattering by a Layered Chiral Object

2023 13th International Conference on Dependable Systems, Services and Technologies (DESSERT), 2023
Ioannis Arkoudis, George Halikias, Paraskevi Roupa, Stefania Zoi   +3 more
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Layered chiral metallic meta-materials [PDF]

, 2002
Using electron beam lithographic techniques we have manufactured left and right-handed forms of an artificial medium consisting of high densities of microscopic planar chiral metallic objects distributed regularly in a plane. In this artificial medium we have for the first time observed optical manifestations of planar chirality in the form of ...
Zheludev, N.I., Papakostas, A., Potts, A., Coles, H.J., Bagnall, D.M.   +4 more
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Chiral intercalation in layered cyano-bridged metal frameworks

Chemical Communications
In this work, a series of chiral nanomaterials have been successfully constructed by intercalating chiral molecules of α-methylbenzylamine into diverse layered cyano-bridged metal frameworks through host–guest interaction.
Bojie Gong, Qiangqiang Qiao, Yujing Liu, Huadong Yuan, Jianmin Luo, Yao Wang, Shihui Zou, Peng Shi, Xinyong Tao, Jianwei Nai   +9 more
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