Academic literature on the topic 'Cyclophanes'

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Journal articles on the topic "Cyclophanes"

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Rajakumar, Perumal, and Ramar Padmanabhan. "Synthesis, Anti-Arthritic, and Anti-Inflammatory Activity of N-Tosyl aza Cyclophanes." Australian Journal of Chemistry 65, no. 2 (2012): 186. http://dx.doi.org/10.1071/ch11435.

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The synthesis of novel N-tosyl tetraaza cyclophanes and N-tosyl diaza cyclophane incorporating m-terphenyl as spacer units is described. Anti-arthritic activity was studied by inhibition of the protein denaturation method (bovine serum albumin). All the N-tosyl aza cyclophanes exhibit excellent anti-arthritic activity. Anti-inflammatory activity of the synthesized cyclophanes was investigated using the human red blood cells (HRBC) membrane stabilization method and some of the N-tosyl aza cyclophanes exhibited good anti-inflammatory activity.
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Mageed, Ahmed Hassoon, and Karrar Al-Ameed. "Synthesis, structural studies and computational evaluation of cyclophanes incorporating imidazole-2-selones." RSC Advances 13, no. 25 (2023): 17282–96. http://dx.doi.org/10.1039/d3ra02913a.

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Cyclophanes incorporating o-xylylene or mesitylene-m-cyclophane linked-selone groups are mutually syn in both solid state and solution. While, m-xylylene or p-xylylene cyclophanes linked-selone groups show syn and anti conformations in the solution.
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Rühe, Jessica, David Bialas, Peter Spenst, Ana-Maria Krause, and Frank Würthner. "Perylene Bisimide Cyclophanes: Structure–Property Relationships upon Variation of the Cavity Size." Organic Materials 02, no. 02 (2020): 149–58. http://dx.doi.org/10.1055/s-0040-1709998.

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Five cyclophanes composed of two perylene bisimide (PBI) dyes and various CH2–arylene–CH2 linker units were synthesized. PM6-D3H4 geometry-optimized structures and a single crystal for one of these cyclophanes reveal well-defined distances between the two coplanar PBI units in these cyclophanes, spanning the range from 5.0 to 12.5 Å. UV/vis absorption spectra reveal a redistribution of oscillator strength of the vibronic bands due to a H-type exciton coupling even for the cyclophane with the largest interchromophoric distance. A quantitative evaluation according to the Kasha–Spano theory affor
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Zhang, Xing-Xing, Jian Li, and Yun-Yin Niu. "A Review of Crystalline Multibridged Cyclophane Cages: Synthesis, Their Conformational Behavior, and Properties." Molecules 27, no. 20 (2022): 7083. http://dx.doi.org/10.3390/molecules27207083.

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This paper reviews the most stable conformation of crystalline three-dimensional cyclophane (CP) achieved by self-assembling based on changing the type of aromatic compound or regulating the type and number of bridging groups. [3n]cyclophanes (CPs) were reported to form supramolecular compounds with bind organic, inorganic anions, or neutral molecules selectively. [3n]cyclophanes ([3n]CPs) have stronger donor capability relative to compound [2n]cyclophanes ([2n]CPs), and it is expected to be a new type of electron donor for the progress of fresh electron conductive materials. The synthesis, co
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Kotha, Sambasivarao, Mukesh Eknath Shirbhate, and Gopalkrushna T. Waghule. "Selected synthetic strategies to cyclophanes." Beilstein Journal of Organic Chemistry 11 (July 29, 2015): 1274–331. http://dx.doi.org/10.3762/bjoc.11.142.

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In this review we cover various approaches to meta- and paracyclophanes involving popular reactions. Generally, we have included a strategy where the reaction was used for assembling the cyclophane skeleton for further functionalization. In several instances, after the cyclophane is made several popular reactions are used and these are not covered here. We included various natural products related to cyclophanes. To keep the length of the review at a manageable level the literature related to orthocyclophanes was not included.
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Jabłoński, Mirosław. "Determining Repulsion in Cyclophane Cages." Molecules 27, no. 13 (2022): 3969. http://dx.doi.org/10.3390/molecules27133969.

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Superphane, i.e., [2.2.2.2.2.2](1,2,3,4,5,6)cyclophane, is a very convenient molecule in studying the nature of guest⋯host interactions in endohedral complexes. Nevertheless, the presence of as many as six ethylene bridges in the superphane molecule makes it practically impossible for the trapped entity to escape out of the superphane cage. Thus, in this article, I have implemented the idea of using the superphane derivatives with a reduced number of ethylene linkers, which leads to the [2n] cyclophanes where n<6. Seven such cyclophanes are then allowed to form endohedral complexes with nob
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Vermeij, Rudolf J., David O. Miller, Louise N. Dawe, et al. "Mixed [2.2]Cyclophanes of Pyrene and Benzene." Australian Journal of Chemistry 63, no. 12 (2010): 1703. http://dx.doi.org/10.1071/ch10356.

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An examination of the literature on [2.2]cyclophanes reveals a loose relationship between the relative sizes of the two ‘half-cyclophanes’ (as measured by the parameter Δd) and the limitations of the dominant general synthetic approaches. Direct coupling methods tend to be successful only for systems with Δd values below 1.0 Å, whereas ring-contraction-based approaches are usually viable for systems with Δd values up to 2.0 Å. For the very few known systems with Δd values greater than 2.0 Å, aromatization-based approaches are the only ones that have been successful. The syntheses of two [2.2]c
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Salazar-Medina, Alex J., Enrique F. Velazquez-Contreras, Rocio Sugich-Miranda, et al. "Immune response of human cultured cells towards macrocyclic Fe2PO and Fe2PC bioactive cyclophane complexes." PeerJ 8 (April 20, 2020): e8956. http://dx.doi.org/10.7717/peerj.8956.

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Synthetic molecules that mimic the function of natural enzymes or molecules have untapped potential for use in the next generation of drugs. Cyclic compounds that contain aromatic rings are macrocyclic cyclophanes, and when they coordinate iron ions are of particular interest due to their antioxidant and biomimetic properties. However, little is known about the molecular responses at the cellular level. This study aims to evaluate the changes in immune gene expression in human cells exposed to the cyclophanes Fe2PO and Fe2PC. Confluent human embryonic kidney cells were exposed to either the cy
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Benniston, Andrew C., Philip R. Mackie, Louis J. Farrugia, Simon Parsons, William Clegg, and Simon J. Teat. "Metallo-Based Cyclophanes and [2]Catenanes." Platinum Metals Review 42, no. 3 (1998): 100–105. http://dx.doi.org/10.1595/003214098x423100105.

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The creation of systems that are capable of performing molecular-scale operations is currently under extensive investigation, particularly in the emerging field of nanotechnology. Towards this end, we have been actively involved in the construction and study of the properties of metallo-based assemblies based on electron-deficient cyclophanes and donor-acceptor [2]catenanes. Metallic moieties, such as [Ru(bipy)2 (L)]6+ and [Os(bipy)2(L)]6+, where bipy = 2,2′-bipyridyl and L= tetracationic cyclophane ligand, form an integral part of the molecular structures of these assemblies and in these spec
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Patel, Suraj, Tyson N. Dais, Paul G. Plieger, and Gareth J. Rowlands. "Breaking paracyclophane: the unexpected formation of non-symmetric disubstituted nitro[2.2]metaparacyclophanes." Beilstein Journal of Organic Chemistry 17 (June 29, 2021): 1518–26. http://dx.doi.org/10.3762/bjoc.17.109.

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Substituted [2.2]metaparacyclophanes are amongst the least studied of the simple cyclophanes. This is undoubtedly the result of the lengthy syntheses of these compounds. We report the simple synthesis of a rare example of a non-symmetric [2.2]metaparacyclophane. Treatment of [2.2]paracyclophane under standard nitration conditions gives a mixture of 4-nitro[2.2]paracyclophane, 4-hydroxy-5-nitro[2.2]metaparacyclophane and a cyclohexadienone cyclophane.
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Dissertations / Theses on the topic "Cyclophanes"

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Turner, Peter D. "Organic materials for nonlinear optics /." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09pht951.pdf.

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Robbins, Steven Joseph, and University of Lethbridge Faculty of Arts and Science. "Cyclophanes from kinetically stabilized bis(isobenzofuran)s." Thesis, Lethbridge, Alta. : University of Lethbridge, Deptartment of Chemistry and Biochemistry, 2009, 2009. http://hdl.handle.net/10133/781.

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Isobenzofurans (IBF)s are interesting molecules with regards to their structure and reactivity. The properties of these compounds are investigated through the use of gas phase calculations and kinetic studies. This work provides insight into the aromatic character of IBF and how substituents affect IBF’s reactivity. Substituted derivatives of naphtho[1,2-c:5,6-c]difuran are synthesized and reacted with tethered bis(dienophile)s to form cyclophanes. Phenyl-substituted naphtho[1,2-c5,6-c]difuran forms only a single isomer when reacted with a tethered bis(acrylate) and a tert-butyldimethylsilyl-s
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Arifhodzic, Lejla. "Novel bis-quinolinium cyclophanes as SKca channel blockers." Thesis, University College London (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248484.

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Richard, Jimmy. "Cyclophanes de viologènes adressables pour stockage de charges." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAF021.

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Le stockage de données sur une molécule est un défi fondamental dans l’élaboration de systèmes pouvant stocker une grande quantité de données dans un minimum d’espace. Le projet de cette thèse s’inscrit dans cette thématique, à savoir la conception d’interrupteurs moléculaire oscillant par des stimuli redox et étant lisibles sans altérer les différents états pour permettre la création de mémoire moléculaire. Les cyclophanes bis-viologènes sont donc des candidats potentiels pour la création de dispositifs de stockage d’informations qui pourraient être écrites de façon réversible et lues de nomb
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Auffray, Morgan. "Cyclophanes, a bridge between photophysics and supramolecular chemistry." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066285/document.

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Dans ce travail, des derivés du dithia[3.3]paracyclophane sont étudiés pour des applications en nanostructuration de surfaces et comme nouveaux fluorophores. Dans un premier temps, l'auto-assemblage supramoléculaire de molécules est utilisé pour créer des réseaux 2D sur surface. Cependant, l'utilisation de tels substrats a tendance à annihiler les propriétés électroniques des composés adsorbés. Par conséquent, des dérivés 3D du dithia[3.3]paracyclophane sont employées afin d'éloigner le composant actif de la surface. Dans cet optique, de nouvelles molécules à base de groupements pyridine ont é
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Auffray, Morgan. "Cyclophanes, a bridge between photophysics and supramolecular chemistry." Electronic Thesis or Diss., Paris 6, 2017. http://www.theses.fr/2017PA066285.

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Dans ce travail, des derivés du dithia[3.3]paracyclophane sont étudiés pour des applications en nanostructuration de surfaces et comme nouveaux fluorophores. Dans un premier temps, l'auto-assemblage supramoléculaire de molécules est utilisé pour créer des réseaux 2D sur surface. Cependant, l'utilisation de tels substrats a tendance à annihiler les propriétés électroniques des composés adsorbés. Par conséquent, des dérivés 3D du dithia[3.3]paracyclophane sont employées afin d'éloigner le composant actif de la surface. Dans cet optique, de nouvelles molécules à base de groupements pyridine ont é
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Collins, Shawn K. "Design, synthesis, and applications of novel phenyl/acetylenic cyclophanes." Thesis, University of Ottawa (Canada), 2001. http://hdl.handle.net/10393/9015.

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The synthesis of a novel family of acetylenic cyclophanes via Pd, Cu and Zn catalyzed cross-coupling reactions is described. The cyclophanes were constructed in good yields and X-ray crystal analysis revealed a twisted helical geometry. The nature of the geometry and the ability to complex solvent molecules within the lattice varied upon the number of acetylenic linkages present. Functionalized cyclophanes bearing long alkyl chains based on the helical structures 191 and 213 were also synthesized with potential as novel liquid crystals. Cyclophane 280 showed LC-like behavior when melting was
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Houghton, Tom J. "Synthesis and study of some novel and interesting cyclophanes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0023/NQ54838.pdf.

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Moody, T. S. "Switches based on crown ethers, cyclophanes and amino acids." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390876.

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Bartlett, Stephen James. "Synthesis, conformational studies and biological activity of bisindolylmaleimide cyclophanes." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424060.

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Books on the topic "Cyclophanes"

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Weber, E., ed. Cyclophanes. Springer-Verlag, 1994. http://dx.doi.org/10.1007/bfb0025265.

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Diederich, François. Cyclophanes. Royal Society of Chemistry, 1991.

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Diederich, François. Cyclophanes. Royal Society of Chemistry, 1994.

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F, Vögtle. Cyclophan-Chemie: Synthesen, Strukturen, Reaktionen : Einführung und Überblick. Teubner, 1990.

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Kostermans, Gerardus Botje Maria. Synthesis and properties of very small [n]cyclophanes. [s.n.], 1989.

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Vögtle, Fritz. Cyclophan-Chemie. Vieweg+Teubner Verlag, 1990. http://dx.doi.org/10.1007/978-3-322-92788-0.

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Cyclophanes. Royal Society of Chemistry, 2016. http://dx.doi.org/10.1039/9781788010924.

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Cyclophanes. Springer, 1994.

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Hart, H. Cyclophanes. Springer, 2013.

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Weber, E. Cyclophanes. Springer-Verlag, 1994.

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Book chapters on the topic "Cyclophanes"

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Benniston, Andrew C., and Anthony Harriman. "Photoactive Cyclophanes." In Physical Supramolecular Chemistry. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0317-3_12.

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Tsuji, Takashi. "Highly Strained Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch3.

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Speiser, Bernd. "Molecular Electrochemistry of Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch14.

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Ernst, Ludger, and Kerstin Ibrom. "NMR Spectra of Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch15.

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Hopf, Henning. "Intramolecular Reactions in Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch7.

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Sander, Wolfram. "Reactive Intermediates from Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch8.

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Muchall, Heidi M. "Ultraviolet Photoelectron Spectra of Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch10.

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Rademacher, Paul. "UV/Vis Spectra of Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch11.

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Flood, Amar H., Yi Liu, and J. Fraser Stoddart. "From Cyclophanes to Molecular Machines." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch19.

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Gleiter, Rolf, Bernhard J. Rausch, and Rolf J. Schaller. "Endohedral Metal Complexes of Cyclophanes." In Modern Cyclophane Chemistry. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603964.ch6.

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Conference papers on the topic "Cyclophanes"

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Scherer, P. O. J. "Noise induced intramolecular electron transfer processes in polar media." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/up.1992.fc4.

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In two recent papers the photoinduced electron transfer process within a porphyrin quinon cyclophane complex has been studied experimentally /1/ and theoretically /2/ as a model system for the photosynthetic reaction center. The observed rate of the charge separation process depends strongly on the solvent polarity. This dependence could be described analytically using macroscopic models for the dielectric behavior of the solvent. In general, however, such systems may show nonexponential behavior /3/ and the solvent dynamics has to be considered explicitly in a microscopic model. This is the a
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Reports on the topic "Cyclophanes"

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Li, Shulong, Henry S. White, and Michael D. Ward. Scanning Tunneling Microscopy of the Organic Semiconductor ((Eta-C5Me5) 2Ru(1,4-(2(2))-cyclophane)) (TCNQ)4. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada246848.

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