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Relevant bibliographies by topics / Achiral and chiral

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Academic literature on the topic 'Achiral and chiral'

Author: Grafiati

Published: 18 May 2024

Last updated: 31 July 2025

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Journal articles on the topic "Achiral and chiral"

1

Rananaware, Anushri, Duong Duc La, Mohammad Al Kobaisi, Rajesh S. Bhosale, Sidhanath V. Bhosale, and Sheshanath V. Bhosale. "Controlled chiral supramolecular assemblies of water soluble achiral porphyrins induced by chiral counterions." Chemical Communications 52, no. 67 (2016): 10253–56. http://dx.doi.org/10.1039/c6cc04427a.

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Guven, Zekiye P., Burcin Ustbas, Kellen M. Harkness, et al. "Synthesis and characterization of mixed ligand chiral nanoclusters." Dalton Transactions 45, no. 28 (2016): 11297–300. http://dx.doi.org/10.1039/c6dt00785f.

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Chiral mixed ligand silver nanoclusters were synthesized in the presence of a chiral and an achiral ligand. While the chiral ligand led mostly to the formation of nanoparticles, the presence of the achiral ligand drastically increased the yield of nanoclusters with enhanced chiral properties.

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Reyes Calle, Juliana, Jairo Antonio Cubillos Lobo, Consuelo Montes de Correa, and Aída Luz Villa Holguín de P. "Oxidising agent and catalyst chirality effect on epoxidation of R-(+)- Limonene using Jacobsen-type catalysts." Ingeniería e Investigación 28, no. 2 (2008): 37–44. http://dx.doi.org/10.15446/ing.investig.v28n2.14890.

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The oxidising agent effect on R-(+)-Limonene epoxide diastereoselectivity using chiral and achiral Jacobsen’s type catalysts is presented. The type of oxidising agent strongly influences diastereoselectivity. Moderate diastereomeric excesses were achieved in the presence of oxidising agents prepared in situ but in the absence of catalyst (23% for DMD and 29% for O2/pivalaldehyde). Similar diastereomeric excesses were obtained with both chiral and achiral catalyst when the oxidising agents were prepared in situ; 56% and 50% excesses were obtained when using DMD for the chiral and achiral cataly

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Wan, Xingcheng, Yangyang Li, Yixin Wang, Yifan Li, and Chao Zhang. "Recent Advances in Chiral and Achiral Metasurfaces Under Symmetry Preservation and Breaking." Symmetry 17, no. 7 (2025): 1001. https://doi.org/10.3390/sym17071001.

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Structural symmetry preservation and breaking play important roles in optical manipulation at subwavelength scales. By precisely engineering the symmetry of the nanostructures, metasurfaces can effectively realize various optical functions such as polarization control, wavefront shaping, and on-chip optical integration, with promising applications in information photonics, bio-detection, and flexible devices. In this article, we review the recent advances in chiral and achiral metasurfaces based on symmetry manipulation. We first introduce the fundamental principles of chiral and achiral metas

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Reyes, Juliana, Jairo Antonio Cubillos, Aída Luz Villa, and Consuelo Montes de Correa. "Effect of substrate and catalyst chirality on the diastereoselective epoxidation of R-(+)-limonene with manganese(III) salen complexes." Revista Facultad de Ingeniería Universidad de Antioquia, no. 48 (July 23, 2013): 18–26. http://dx.doi.org/10.17533/udea.redin.16005.

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The asymmetric epoxidation of R-(+)-limonene in the presence of the Jacobsen´s catalyst in its chiral and achiral either homogeneous or heterogeneous (immobilized on Al-MCM-41) forms was studied using in situ generated dimethyldioxirane as oxidizing agent. It was found that the catalytic activity of the chiral and achiral forms of the Jacobsen´s catalyst was very similar either homogeneous or heterogeneous. This result suggests that the preferential formation of cis-(+)-1,2-limonene oxide depends not only on the catalyst chiral center, but also on the substrate chiral center. This represents a

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Pakalidou, Nikoletta, David L. Cheung, Andrew J. Masters, and Carlos Avendaño. "Macroscopic chiral symmetry breaking in monolayers of achiral nonconvex platelets." Soft Matter 13, no. 45 (2017): 8618–24. http://dx.doi.org/10.1039/c7sm01840a.

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The fabrication of chiral structures using achiral building blocks is a fundamental problem that remains a challenge in materials science. Pictured are local chiral configurations formed by non-convex (achiral) platelets with 6- and 4-fold symmetries.

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Wilson, Tyler M., Audra Davis, Reilly E. Sonstrom, et al. "Essential Oil Composition and Enantioselective Profile of Agastache urticifolia (Lamiaceae) and Monardella odoratissima (Lamiaceae) from Utah." Molecules 28, no. 5 (2023): 2249. http://dx.doi.org/10.3390/molecules28052249.

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Two species within the Lamiaceae (mint) family, Agastache urticifolia and Monardella odoratissima, are aromatic plants that are native to the Intermountain Region (USA). Essential oil produced through steam distillation was examined to establish the essential oil yield and both the achiral and chiral aromatic profiles of both plant species. The resulting essential oils were analyzed by GC/MS, GC/FID, and MRR (molecular rotational resonance). For A. urticifolia and M. odoratissima, achiral essential oil profiles were largely composed of limonene (71.0%, 27.7%), trans-β-ocimene (3.6%, 6.9%), and

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Dressel, Christian, Wolfgang Weissflog, and Carsten Tschierske. "Spontaneous mirror symmetry breaking in a re-entrant isotropic liquid." Chemical Communications 51, no. 87 (2015): 15850–53. http://dx.doi.org/10.1039/c5cc06843f.

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Wang, Lewen, Tengfei He, Hailiang Liao, et al. "A Theoretical Design of Chiral Molecules through Conformational Lock towards Circularly Polarized Luminescence." Photonics 9, no. 8 (2022): 532. http://dx.doi.org/10.3390/photonics9080532.

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Circularly polarized (CP) light has shown great potential in quantum computing, optical communications, and three-dimensional displays. It is still a challenge to produce high-efficiency and high-purity CP light. Herein, we proposed a strategy to design chiral organic small molecules for CP light generation. These kinds of chiral molecules are formed by achiral light-emitting groups and achiral alkyl chains through conformational lock, which indicates that chirality can also be introduced into achiral light-emitting groups through rational molecular design. The chirality of these molecules can

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10

Becalski, Adam, William R. Cullen, Michael D. Fryzuk, et al. "The chemistry of thujone. XII. The synthesis of pyrethroid analogues via chiral cyclopropanation." Canadian Journal of Chemistry 66, no. 12 (1988): 3108–15. http://dx.doi.org/10.1139/v88-479.

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An extensive study involving achiral and chiral cyclopropanation of various isoprenoid units derived from the monoterpene thujone is presented. Carbenoid intermediates generated from ethyl and L-menthyl diazoacetates and various achiral and chiral copper catalysts are employed to achieve the desired cyclopropanation reaction. It is shown that high levels of enantiomeric excess can be achieved, particularly when L-menthyl diazoacetate and a chiral catalyst are employed. The resultant products are then converted to pyrethroid-like analogues.

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Dissertations / Theses on the topic "Achiral and chiral"

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Saeed, Mansoor. "Novel achiral and chiral derivatising reagents for indirect chiral resolution." Thesis, University of Sunderland, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260828.

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Carlsson, Björn. "From achiral to chiral analysis of citalopram." Doctoral thesis, Linköpings universitet, Klinisk farmakologi, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5217.

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Within the field of depression the “monoamine hypothesis” has been the leading theory to explain the biological basis of depression. This theory proposes that the biological basis of depression is due to a deficiency in one or more of three key neurotransmitter systems, namely noradrenaline, dopamine and serotonin which are thought to mediate the therapeutic actions of virtually every known antidepressant agent. Citalopram is a selective serotonin-reuptake inhibitor (SSRI) used for the treatment of depression and anxiety disorders. Citalopram is a racemic compound, in other words composed of a

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Carlsson, Björn. "From achiral to chiral analysis of citalopram /." Linköping : Univ, 2003. http://www.ep.liu.se/diss/med/07/93/index.html.

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Gutierrez, Cuevas Karla Guadalupe Gutierrez. "LIQUID CRYSTALLINE NANOCOMPOSITES: FROM ACHIRAL TO CHIRAL SYSTEMS." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1500998489695319.

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Carter-Finch, Annabelle Suzanne. "The investigation of achiral and chiral separations by capillary electrochromatography." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327053.

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Haldar, Sripada. "Investigation on some achiral and chiral mesogemic systems by different experimental techniques." Thesis, University of North Bengal, 2013. http://hdl.handle.net/123456789/1481.

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Horcajada, Roberto. "Radical-anions of chiral and achiral 1,6-diaminophenazine derivatives as electrogenerated bases." Thesis, Queen Mary, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401860.

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Fergusson, Kenneth Matthew. "The synthesis and properties of achiral and chiral bent-core liquid crystals." Thesis, University of Hull, 2008. http://hydra.hull.ac.uk/resources/hull:5810.

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The area of liquid crystals has received substantial research effort over the last century, particularly when the beneficial applications such as Liquid Crystal Displays (LCDs) were realised and developed. For the majority of this time, it has been considered that a linear molecular shape is required in order to generate a mesomorphic phase. It was therefore of particular interest and excitement when, in 1996, it was shown that a 'banana-shaped' molecular architecture could exhibit a new class of liquid crystalline phase. Additionally it was found that these new mesophases exhibited chiral dom

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Morrison, Calum M. "Chiral and achiral analysis of benzodiazepine and anti-anginal drugs in forensic toxicology." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321443.

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Kiakos, K. "Molecular and cellular pharmacology of novel chiral and achiral CC-1065/duocarmycin analogues." Thesis, University College London (University of London), 2007. http://discovery.ucl.ac.uk/1444902/.

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CC-1065 and the duocarmycins are highly potent anticancer agents, exerting their biological activity through covalently reacting with adenine-N3 in the minor groove of AT-rich sequences. The alkylation properties and cytotoxicity of a series of novel chiral analogues are reported in this thesis. Structural modifications of established pharmacophores resulting in novel alkylating functionalities as well as variations of the DNA binding domain were introduced in the analogues considered, The sequence specificity of these compounds was assessed by a Taq Polymerase stop assay, identifying the site

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Books on the topic "Achiral and chiral"

1

Hurni, Christian. Chiara und Achill: Sie Verändern Die Welt. Independently Published, 2021.

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Book chapters on the topic "Achiral and chiral"

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Schäferling, Martin. "Chiral Fields of Macroscopically Achiral Arrangements." In Springer Series in Optical Sciences. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42264-0_6.

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Fujita, Shinsaku. "Compounds with Achiral and Chiral Ligands." In Symmetry and Combinatorial Enumeration in Chemistry. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76696-1_19.

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3

Sachs, Johannes. "Chiroptical Spectroscopy of Single Chiral and Achiral Nanoparticles." In Motion, Symmetry & Spectroscopy of Chiral Nanostructures. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88689-9_4.

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4

Sachs, Johannes. "Motion of Chiral and Achiral Structures at Low Re." In Motion, Symmetry & Spectroscopy of Chiral Nanostructures. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-88689-9_3.

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5

Harary, Frank, and Paul G. Mezey. "Chiral and achiral square-cell configurations; the degree of chirality." In New Developments in Molecular Chirality. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3698-3_8.

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Wang, Yun-Che, Tse-Chun Liao, Kai-Wen Tan, and Sergey M. Aizikovich. "Bandgap Properties of a Class of Chiral and Achiral Metamaterials." In Advanced Structured Materials. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26186-2_44.

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Athanasiadis, Christodoulos, Evangelia Athanasiadou, Sotiria Dimitroula, and Eleftheria Kikeri. "Scattering Relations for a Multi-Layered Chiral Scatterer in an Achiral Environment." In Applications of Mathematics and Informatics in Science and Engineering. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04720-1_2.

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Dahlenburg, Lutz. "Cleavage of the Carbon-Hydrogen Bond on Achiral and Chiral Transition Metal Complexes." In Organic Synthesis via Organometallics (OSM 4). Vieweg+Teubner Verlag, 1993. http://dx.doi.org/10.1007/978-3-322-84062-2_4.

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Dyas, A. M., M. L. Robinson, and A. F. Fell. "The Design of Chiral Separations for β-Blocker Drugs on Pirkle High-Performance Liquid Chromatography Phases Using Achiral Derivatisation." In Recent Advances in Chiral Separations. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-8282-9_5.

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Feis, Joshua, Dominik Beutel, Julian Köpfler, et al. "An Achiral Optical Cavity with Helicity-Preserving Modes for Enhanced Sensing of Chiral Molecules." In NATO Science for Peace and Security Series B: Physics and Biophysics. Springer Netherlands, 2021. http://dx.doi.org/10.1007/978-94-024-2138-5_34.

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Conference papers on the topic "Achiral and chiral"

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Biswas, Aritra, Pablo Cencillo-Abad, and Debashis Chanda. "Probing Molecular Chirality with a Tunable Achiral Plasmonic System." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.ff3c.5.

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We demonstrate helicity preserving engineered chiral light on a tunable achiral nanostructured SEIRA-VCD platform that can enable precise detection and classification of diverse chiral compounds, reshaping drug design and biomolecular applications.

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Lin, Li-Zhi, Yi-Jan Huang, Andrew Salij, et al. "Exploring Chiral Laser Emission in Optical Cavities with achiral dye systems and 2D Chiral Organic Thin Film." In CLEO: Science and Innovations. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_si.2024.sf3g.2.

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Recent advancements demonstrate successful cavity-enhanced optical chirality via 2D chiral organic PTPO thin films. Investigating further, we explore the potential for chiral stimulated emission by incorporating this thin film into a POPOP dye laser cavity.

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Bucher, Tobias, Zlata Fedorova, Mostafa Abasifard, et al. "Probing Chiral Farfield Properties of Monolayer Transition Metal Dichalcogenides Coupled to Achiral Plasmonic Nanoantennas." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.ff3c.2.

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We investigate the polarization of valley-specific emission from monolayer MoS2 coupled to a plasmonic nanoparticle. The chiral emission properties are lost for the hybrid system which we analyze in terms of excitation and emission.

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Wang, Jincheng, and Chunlei Guo. "Turning Optically Achiral Materials Chiral." In 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference. IEEE, 2007. http://dx.doi.org/10.1109/cleoe-iqec.2007.4386304.

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Buaossa, Nagi A., Monish R. Chatterjee, Elforjani Jera, and Rajab Ataai. "Examination of Chiral Magnetic Slab and Spectral Response." In Frontiers in Optics. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/fio.2023.fd2.6.

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The results obtained for Fresnel coefficients (FCs) corresponding to a magnetic achiral/chiral (ACC) and chiral/achiral (CAC) interfaces are extended to examine the chiral magnetic slab and spectral response.

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Rodrigues, Sean P., Yonghao Cui, Shoufeng Lan, Lei Kang, and Wenshan Cai. "Achiral Nanoprobes Extract Chiral Signals from within Chiral Metamaterials." In CLEO: QELS_Fundamental Science. OSA, 2016. http://dx.doi.org/10.1364/cleo_qels.2016.fth3d.2.

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Ataai, Rajab Y., and Monish R. Chatterjee. "Planar Electromagnetic Propagation of a Circularly Polarized Wave Across Achiral/Chiral and Chiral/Achiral Interfaces using Fresnel Coefficients." In NAECON 2019 - IEEE National Aerospace and Electronics Conference. IEEE, 2019. http://dx.doi.org/10.1109/naecon46414.2019.9058013.

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Mayer, Nicola, David Ayuso, Misha Ivanov, and Olga Smirnova. "Control of achiral and chiral media with synthetic chiral vortex beams." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/up.2022.w4a.26.

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We combine bicircular vortex beams to create chiral vortices with azimuthally varying handedness. The vortex can imprint its local chirality on atoms and transfer its global topology on the dipole response from chiral molecules.

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Buaossa, Nagi A., and Monish R. Chatterjee. "Comparative Study of Planar Electromagnetic Wave Propagation across Dual-Interface and Stand-Alone Magnetic Chiral/Achiral (CAC) Interfaces." In Frontiers in Optics. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/fio.2022.jw5b.14.

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The results obtained for Fresnel amplitude coefficients (FCs) corresponding to a magnetic achiral/chiral (ACC) interface under variable incident angles and permittivity/permeability ratios, is extended to comparative study between two methods (incidence conditions) for investigating propagation of plane waves with left- and right- circular polarization (LCP & RCP) incident upon a chiral/achiral (CAC) interface.

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Fukui, Yamato, Atsushi Taguchi, and Keiji Sasaki. "Quest for chiral nanogap structures using topology optimization." In Conference on Lasers and Electro-Optics/Pacific Rim. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleopr.2022.p_ctu8_14.

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Nanogap structures, widely used in the field of nanophotonics, are usually achiral, which have mirror image symmetry. We designed chiral nano-gap structures having selectivity against the handedness of circularly polarized light.

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Reports on the topic "Achiral and chiral"

1

Brown, Herbert C., Ashok M. Salunkhe, and Ankush B. Argade. Organoboranes. 55. An Improved Procedure for the Conversion of Representative Achiral and Chiral Monoalkyl-, (E)- and (Z)-Alkenyl-, and Arylboronates into the Corresponding Organldichloroboranes. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada251643.

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