Academic literature on the topic 'Calixareni'

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Journal articles on the topic "Calixareni"

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Jose, Princy, and Shobana Menon. "Lower-Rim Substituted Calixarenes and Their Applications." Bioinorganic Chemistry and Applications 2007 (2007): 1–16. http://dx.doi.org/10.1155/2007/65815.

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This review discusses in detail “calixarenes” since their discovery as by-products of the phenol formaldehyde bakelites till the present scenario wherein calixarene has assumed a new dimension in the field of supramolecular chemistry. Extensive literature exists for calixarenes; but herein we have tried to concentrate on the different lower-rim modified calixarenes with their potential applications. An attempt has also been made to critically evaluate the synthesis procedures for different lower-rim substituted calixarenes.
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Mironova, Diana, Vladimir Burilov, Farida Galieva, et al. "Azocalix[4]arene-Rhodamine Supramolecular Hypoxia-Sensitive Systems: A Search for the Best Calixarene Hosts and Rhodamine Guests." Molecules 26, no. 18 (2021): 5451. http://dx.doi.org/10.3390/molecules26185451.

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A potential hypoxia-sensitive system host-guest complex of three calixarenes (including two with four anionic carboxyl and sulphonate azo fragments on the upper rim and a newly synthesized bis-azo adduct of calixarene in the cone configuration with azo fragments on the lower rim with the most widespread cationic and zwitterionic rhodamine dyes (123, 6G and B)) was studied using UV-VIS spectrometry and fluorescence as well as 1D and 2D NMR techniques. It was found that all three calixarenes form a complex with rhodamine dyes with a 1:1 composition. The association constants of calixarene-dye co
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Basilotta, Rossella, Deborah Mannino, Alessia Filippone, et al. "Role of Calixarene in Chemotherapy Delivery Strategies." Molecules 26, no. 13 (2021): 3963. http://dx.doi.org/10.3390/molecules26133963.

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Since cancer is a multifactorial disease with a high mortality rate, the study of new therapeutic strategies is one of the main objectives in modern research. Numerous chemotherapeutic agents, although widely used, have the disadvantage of being not very soluble in water or selective towards cancerous cells, with consequent side effects. Therefore, in recent years, a greater interest has emerged in innovative drug delivery systems (DDSs) such as calixarene, a third-generation supramolecular compound. Calixarene and its water-soluble derivatives show good biocompatibility and have low cytotoxic
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Lazar, Adina N., Oksana Danylyuk, Kinga Suwinska, and Anthony W. Coleman. "The Structure of the Tetra-Potassium Salt of Calix[4]Arene Dihydroxyphosphonic Acid." Chemistry Journal of Moldova 2, no. 1 (2007): 98–101. http://dx.doi.org/10.19261/cjm.2007.02(1).07.

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The solid-state structure of the tri-potassium calix[4]arene dihydroxyphosphonate salt is presented. In this structure, two potassium cations bridge between layers of dimeric calixarene diphosphonate units and two other potassium cations bridge along the face of the layers. The ubiquitous dimeric association of the calixarenes shows the highest interdigitation value so far observed. As expected, the cations are solvated and are complexed exo with respect to calixarene crown. The octahedral coordination sphere of the potassium cations is formed by two phosphonate groups of the calixarenes and f
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Lebrón, José Antonio, Manuel López-López, Clara B. García-Calderón, et al. "Multivalent Calixarene-Based Liposomes as Platforms for Gene and Drug Delivery." Pharmaceutics 13, no. 8 (2021): 1250. http://dx.doi.org/10.3390/pharmaceutics13081250.

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The formation of calixarene-based liposomes was investigated, and the characterization of these nanostructures was carried out using several techniques. Four amphiphilic calixarenes were used. The length of the hydrophobic chains attached to the lower rim as well as the nature of the polar group present in the upper rim of the calixarenes were varied. The lipid bilayer was formed with one calixarene and with the phospholipid 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine, DOPE. The cytotoxicity of the liposomes for various cell lines was also studied. From the results obtained, the liposomes fo
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Cohen, Yoram, and Sarit Slovak. "Diffusion NMR for the characterization, in solution, of supramolecular systems based on calixarenes, resorcinarenes, and other macrocyclic arenes." Organic Chemistry Frontiers 6, no. 10 (2019): 1705–18. http://dx.doi.org/10.1039/c9qo00329k.

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The use of diffusion NMR in studying calixarenes and other arene-based supramolecular systems is described, emphasizing the pivotal role played by the calixarene community in transforming the methods into a routine tool used in supramolecular chemistry.
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Schatz, Jürgen. "Recent Application of ab initio Calculations on Calixarenes and Calixarene Complexes. A Review." Collection of Czechoslovak Chemical Communications 69, no. 6 (2004): 1169–94. http://dx.doi.org/10.1135/cccc20041169.

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In this short review the application of ab initio quantum chemical calculations on calixarenes and calixarene complexes is highlighted. The main focus lies on results obtained mainly during the last 2-3 years. A review with 92 references.
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Kalchenko, Vitaly I. "Calixarene receptors of environmentally hazardous and biorelevant molecules and ions." Pure and Applied Chemistry 80, no. 7 (2008): 1449–58. http://dx.doi.org/10.1351/pac200880071449.

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In the paper, a report on the rational design of the calixarene receptors bearing ligating, H-donor, H-acceptor fragments at the wide and/or narrow rim of the macrocycle is presented. The calixarenes form supramolecular complexes with various cations, anions, organic molecules, and biomolecules in solution, in the crystalline state and even in the gas phase. The calixarenes or their complexes can be used as materials for radionuclide extraction, construction of chemosensors, and drug design.
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Allen, Hillary F., Kevin D. Daze, Takashi Shimbo, et al. "Inhibition of histone binding by supramolecular hosts." Biochemical Journal 459, no. 3 (2014): 505–12. http://dx.doi.org/10.1042/bj20140145.

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We report a new set of calixarene-based host compounds and show their applicability in characterizing functions of methyllysine-recognizing epigenetic readers. Calixarenes disrupt the association of the PHD finger of CHD4 with a trimethylated, but not an unmodified, histone tail.
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Wojaczyńska, Elżbieta, Marta Ostrowska, Małgorzata Lower, Natalia Czyżyk, Anna Jakieła, and Alberto Marra. "Recent Advances in Synthesis and Applications of Calixarene Derivatives Endowed with Anticancer Activity." Molecules 29, no. 17 (2024): 4240. http://dx.doi.org/10.3390/molecules29174240.

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Calix[n]arenes, macrocycles constituted of 4–8 phenol moieties linked through methylene bridges, are stable molecules that can be selectively functionalised at the upper or lower rim. It has already been demonstrated that calixarene derivatives can be biologically or pharmacologically active compounds. More recently, suitably functionalised calixarenes and calixarene analogues (dihomooxacalixarenes, thiacalixarenes, calix[4]resorcinols, azacalixarenes, calixpyrroles, and pillarenes) were found to act as anticancer agents, at least in in vitro assays. We are reporting on the latest progress in
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Dissertations / Theses on the topic "Calixareni"

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Talotta, Carmen. "Congegni Supramolecolari basati sul Threading di Calixareni." Doctoral thesis, Universita degli studi di Salerno, 2013. http://hdl.handle.net/10556/1475.

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2011 - 2012<br>Recently, Neri et al have introduced an efficient method to obtain endo-cavity complexation and through-the-annulus threading of large calixarenes exploiting the inducing effect of a weakly coordinating anion, tetrakis [3,5-bis (trifluoromethyl) phenyl]borate (TFPB-). In this PhD thesis this approach has been used for the synthesis of [2]rotaxanes, which showed an unprecedented inversion of the wheel orientation. Subsequently, it was extended to the synthesis of pseudo[3]rotaxane systems in which two calix[6]arene macrocycles are threaded by a bis(benzylalkylammonium) axl
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Ciao, Roberta. "New chemical topologies based on calixarene threading." Doctoral thesis, Universita degli studi di Salerno, 2014. http://hdl.handle.net/10556/1428.

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2012 - 2013<br>Recently, Neri et al. have introduced an efficient method to obtain endo-cavity complexation and through-the-annulus threading of large calixarenes by exploiting the inducing effect of the weakly coordinating tetrakis[3,5-bis-trifluoromethyl)phenyl]borate (TFPB-) anion. The corresponding calix[6]-arene/dialkylammonium pair can be considered a versatile recognition motif, which can be used for the construction of a large variety of calixarene-threaded architectures. This Ph. D. thesis deals with the exploration of the stereochemical features of the threading of hosts containing
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Tommasone, Stefano. "Synthesis of calixarene derivatives active towards proteic targets involved in tumor pathologies." Doctoral thesis, Universita degli studi di Salerno, 2016. http://hdl.handle.net/10556/2213.

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2014 - 2015<br>Over the last 30 years a growing interest has been direct toward the biomolecular recognition of calixarene derivatives and more in particular to the interaction with druggable target(s).1,2 The aim of this PhD thesis was the synthesis and the study of calixarenes that were able to interact with biomolecules involved in tumor pathologies. One of the main topic of this work was the synthesis of calix[4]arene conjugates bearing pyrenylisoxazolidine moieties at the exo rim which could act as potential DNA intercalators. The in vitro cytotoxic activity against different human tumo
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Ferreira, Paula Anastácia. "Modulação de vias de sinalização para indução de morte de células leucêmicas." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/314038.

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Orientador: Carmen Veríssima Ferreira<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-16T13:47:52Z (GMT). No. of bitstreams: 1 Ferreira_PaulaAnastacia_D.pdf: 2451128 bytes, checksum: a13caa2510a3ac1dca624878d50fafab (MD5) Previous issue date: 2010<br>Resumo: A eficiência do tratamento da leucemia sob vários aspectos, mesmo com os avanços farmacotecnológicos, ainda permanece como desafio para a medicina. Diante desse fator, maiores informações sobre a base molecular da leucemia e o desenvolvimento de agentes que atuem de fo
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Lavendomme, Roy. "Development of strategies for the highly selective functionalization of calixarenes and study of host–guest properties of calixarene-based molecular boxes." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/241320.

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Ce travail s’inscrit dans le cadre de l’étude de plateformes polyphénoliques et, plus spécifiquement, des calixarènes. Des macrocycles oligomériques tels que les calixarènes, cyclodextrines, cyclotrivératrylènes, pillararènes, etc. sont fortement utilisés dans de nombreuses applications telles que la reconnaissance moléculaire, la détection, la séparation, le greffage sur surface, etc. Le développement de telles applications requiert toutefois modification sélective de ces macrocycles pour leur conférer des propriétés utiles aux applications visées (e.g. affinité envers certaines espèces chimi
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Dougherty, Gary. "Electrochemically switchable calixarene ionophores." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240418.

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The synthesis of a series of p-tert-butylcalixI4Iarcne based, electrochemically switchable, ionophores (1), (2), (3), (4) and (5) is described. Their electrochemical properties were investigated in the presence of added Croup I metal perchloratcs. Both compounds (1) and (2) displayed no enhancement of binding for metal ions, due to electrostatic interactions, upon electrochemical reduction. This behaviour is explained on steric grounds, as deduced by molecular modelling. Compounds (3), (4) and (5) all display significant enhancements of metal ion binding upon electrochemical reduction. Compoun
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De, Simone Nicola Alessandro. "Calixarene based catalytic systems." Doctoral thesis, Universita degli studi di Salerno, 2018. http://hdl.handle.net/10556/3187.

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2016 - 2017<br>Catalysis is the essence of chemistry as it provides useful tools to make and brake chemical bonds. As nature has been a guide to many scientists, it’s no surprise that in the field of catalysis enzymes were a source of inspiration. Harnessing non covalent interactions, as enzymes do, is a fascinating perspective, and, since supramolecular chemistry became more and more involved in catalysis, a new discipline was born, named supramolecular catalysis. Since supramolecular hosts such as calix[n]arenes have been fruitfully employed in the synthesis of catalysts, in these work we r
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Khan, Latif Ullah. "Nanomateriais ópticos e magnéticos contendo matrizes de Fe3O4 e SiO2 funcionalizadas com calixareno e complexos de terras raras." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-20072015-151110/.

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Neste trabalho são investigados o designer e a fabricação nanomateriais magnéticos e luminescentes sofisticados bifuncionais baseados em Fe3O4 e complexos de RE3+. Portanto, novos nanomateriais Fe3O4@calix-Eu(TTA) e Fe3O4@calix-Tb(ACAC) emissores vermelho e verde superparamagnéticos foram preparados pelo método one-pot. Neste caso, o ligante calixareno quimicamente modicado como surfactantes para estabilizar as nanopartículas de Fe3O4. O ligante calixareno proporciona uma superfície quimicamente modificada e estabilidade coloidal das nanopartículas magnetitas. Consequentemente, as nanopartícul
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Taylor, Stephanie Merac. "Calixarene supported transition metal clusters." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7770.

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This thesis describes a series of calix[n]arene polynuclear transition metal and lanthanide complexes. Calix[4]arenes possess lower-rim polyphenolic pockets that are ideal for the complexation of various transition metal and lanthanide centres. Surprisingly however, with only a few exceptions, the coordination chemistry of p-tBucalix[ 4]arene (TBC[4]), p-tBu-calix[8]arene (TBC[8]) and p-tBuhomotrioxacalix[ 3]arene (TBOC[3]) with paramagnetic transition metal ions for the purpose of making and studying magnetically interesting molecules is unknown. Chapter two describes the reaction of TBC[4] w
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Jensen, Svend Borup. "Schiff base calixarenes." Thesis, University of the West of Scotland, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246345.

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Four different synthetic routes to the sub-target, the p-tert-butylcalix[4lethylamine (6a) from thep-tert-butylcalix[4]arene (1a) have been examined. The best one was a 5-step synthesis, which gave an overall yield of65%. p-tert-Butylcalix[6]ethylamine (6b) and p-tert-butylcalix[8]ethylamine (6c) were synthesised from their respective p-tertbutylcalixarenes by the same route as the p-tert-butylcalix[4]ethylamine (6a). The three different amines (compound (6a), (6b) and (6c)) were used in 14 different Schiff -base type reactions which resulted in six Schiff-base compounds which were fully chara
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Books on the topic "Calixareni"

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Gutsche, C. David. Calixarenes. Royal Society of Chemistry, 1992.

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Asfari, Zouhair, Volker Böhmer, Jack Harrowfield, Jacques Vicens, and Mohamed Saadioui, eds. Calixarenes 2001. Kluwer Academic Publishers, 2002. http://dx.doi.org/10.1007/0-306-47522-7.

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Z, Asfari, ed. Calixarenes 2001. Kluwer Academic Publishers, 2001.

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Z, Asfari, ed. Calixarenes 2001. Kluwer Academic Publishers, 2001.

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Neri, Placido, Jonathan L. Sessler, and Mei-Xiang Wang, eds. Calixarenes and Beyond. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31867-7.

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Lumetta, Gregg J., Robin D. Rogers, and Aravamudan S. Gopalan, eds. Calixarenes for Separations. American Chemical Society, 2000. http://dx.doi.org/10.1021/bk-2000-0757.

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Luigi, Mandolini, and Ungaro Rocco, eds. Calixarenes in action. Imperial College Press, 2000.

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Royal Society of Chemistry (Great Britain), ed. Calixarenes: An introduction. 2nd ed. RSC Pub., 2008.

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1960-, Lumetta Gregg J., Rogers Robin D, and Gopalan Aravamudan S. 1954-, eds. Calixarenes for separations. American Chemical Society, 2000.

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Surov, O. V. Calixarene complexes with solvent molecules. Nova Science Publishers, 2010.

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Book chapters on the topic "Calixareni"

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Kumar, Rajesh, Yujin Jung, and Jong Seung Kim. "Fluorescent Calixarene Hosts." In Calixarenes and Beyond. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31867-7_28.

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Gutsche, C. David. "The Calixarenes." In Host Guest Complex Chemistry / Macrocycles. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70108-5_9.

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Talotta, Carmen, Carmine Gaeta, Annunziata Soriente, Margherita De Rosa, Corrada Geraci, and Placido Neri. "Large Calixarenes." In Calixarenes and Beyond. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31867-7_7.

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Marson, Angelica, Piet W. N. M. van Leeuwen, and Paul C. J. Kamer. "Calixarene-Based Phosphorus Ligands." In Phosphorus(III) Ligands in Homogeneous Catalysis: Design and Synthesis. John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781118299715.ch14.

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Diamond, Dermot. "Calixarene-Based Sensing Agents." In Calixarenes 50th Anniversary: Commemorative Issue. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0267-4_10.

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Gutsche, C. David, Iftikhar Alam, Muzaffar Iqbal, et al. "Topics in Calixarene Chemistry." In United States-Japan Seminar on Host-Guest Chemistry. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0969-4_8.

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Davis, Frank, Seamus P. J. Higson, Osvaldo N. Oliveira, and Flavio M. Shimizu. "Calixarene-Based Gas Sensors." In Materials Horizons: From Nature to Nanomaterials. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-4810-9_17.

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Ohnishi, Yoshitake, Naoko Wamme, and Jun-ichi Fujita. "Calixarene Resists for Nanolithography." In ACS Symposium Series. American Chemical Society, 1998. http://dx.doi.org/10.1021/bk-1998-0706.ch019.

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Cherenok, Sergey, and Vitaly Kalchenko. "Phosphorus-Containing Calixarenes." In Topics in Heterocyclic Chemistry. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/7081_2008_12.

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Böhmer, Volker, Dagmar Kraft, and Moniralsadat Tabatabai. "Inherently Chiral Calixarenes." In Calixarenes 50th Anniversary: Commemorative Issue. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0267-4_2.

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Conference papers on the topic "Calixareni"

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Kim, Taeho, Kyoji Komatsu, Okihiro Sugihara, Toshikuni Kaino, Hiroto Kudo, and Tadatomi Nishikubo. "Optical properties of calixarene polymers." In Integrated Optoelectronic Devices 2008, edited by Robert L. Nelson, Francois Kajzar, and Toshikuni Kaino. SPIE, 2008. http://dx.doi.org/10.1117/12.763211.

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Serban, B., M. Bercu, S. Voicu, M. Mihaila, Gh Nechifor, and C. Cobianu. "Calixarene-Doped Polyaniline for Applications in Sensing." In 2006 International Semiconductor Conference. IEEE, 2006. http://dx.doi.org/10.1109/smicnd.2006.283991.

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Yamagishi, Yoko, Toshikuni Kaino, Atsushi Kameyama, and Tadatomi Nishikubo. "Polymers of photoreactive calixarene derivatives for optical applications." In Integrated Optoelectronics Devices, edited by James G. Grote and Toshikuni Kaino. SPIE, 2003. http://dx.doi.org/10.1117/12.475422.

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Ali, S. S., N. Sen, F. Durmaz, F. Ozcan, S. Ertul, and F. Ozcan. "The use of calixarene nanofibers as an HPLC column filler." In 2017 IEEE 7th International Conference "Nanomaterials: Application & Properties" (NAP). IEEE, 2017. http://dx.doi.org/10.1109/nap.2017.8190220.

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Ozcan, F., F. Ozcan, and S. Ertul. "Use of polymer-free calixarene nanofibers in heavy metal extractions." In 2017 IEEE 7th International Conference "Nanomaterials: Application & Properties" (NAP). IEEE, 2017. http://dx.doi.org/10.1109/nap.2017.8190225.

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Arpaci, P. Uyar, P. Uyar Arpaci, F. Ozcan, M. Agac, F. Ozcan, and S. Ertul. "Calixarene nanofiber design for human colon cancer 3D-cell culture." In 2017 IEEE 7th International Conference "Nanomaterials: Application & Properties" (NAP). IEEE, 2017. http://dx.doi.org/10.1109/nap.2017.8190336.

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Echigo, Masatoshi, Hiromi Hayashi, Hiroaki Oizumi, Kazuyuki Matsumaro, and Toshiro Itani. "Development of molecular resists based on Phenyl[4]calixarene derivatives." In SPIE Advanced Lithography, edited by Robert D. Allen. SPIE, 2010. http://dx.doi.org/10.1117/12.846475.

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Takasuka, Masaaki, Yu Okada, Hiromi Hayashi, and Masatoshi Echigo. "Development of molecular resists based on Phenyl[4]calixarene for EBL." In SPIE Advanced Lithography, edited by Robert D. Allen and Mark H. Somervell. SPIE, 2011. http://dx.doi.org/10.1117/12.879122.

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Simões, Juliana B., Ângelo de Fátima, Luiz Claudio A. Barbosa, and Sergio A. Fernandes. "Calixarene Catalyze Cascade Povarov−Hydrogen-Transfer Reaction in Synthesis of Quinolines." In 15th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013915211651.

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Kaestner, M., and I. W. Rangelow. "Multi-step Scanning Probe Lithography (SPL) on calixarene with overlay alignment." In SPIE Advanced Lithography, edited by William M. Tong. SPIE, 2012. http://dx.doi.org/10.1117/12.916263.

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Reports on the topic "Calixareni"

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Peterson, R. A. Radiation Stability of Calixarene Based Solvent System. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/4851.

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Jeffery Davis. Calix 2007:9th International Conference on Calixarene Chemistry. Office of Scientific and Technical Information (OSTI), 2011. http://dx.doi.org/10.2172/1024123.

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Bartsch, Richard A. New Proton-Ionizable, Calixarene-Based Ligands for Selective Metal Ion Separations. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1041406.

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Wai, Chien M., and Clem Yonker. Solution Effects on Cesium Complexation with Calixarene - Crown Ethers from Liquid to Supercritical Fluids. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/833192.

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Bonnesen, P. V., L. H. Delmau, T. J. Haverlock, and B. A. Moyer. Alkaline-Side Extraction of Cesium from Savannah River Tank Waste Using a Calixarene-Crown Ether Extractant. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/3296.

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Ruangpornvisuti, Vithaya. Basicity investigation and structure optimization of polyaza-Calixarenes and stabilities of their complexes with metal cations. Chulalongkorn University, 2000. https://doi.org/10.58837/chula.res.2000.26.

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Abstract:
The structure of 25, 26, 27, 28-tetra(2-ethoxyaniline)calix[4]arene of cone (cL) and partial cone (pcL) conformations were optimized by PM3 of quantum chemical method. It has been found that cL structure is more stable than pcL conformation. The stabilization energies of protonation on four aniline-nitrogen atoms of both conformations of the ligand at 6-31G energy level, were obtained. The protonations process on the cL and pcL being 7 and 24 possible pathways, respectively, were evaluated. The basicity constants of partial cone conformation of 25, 26, 27, 28-tetra(2- ethoxyaniline)calix[4]are
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