Academic literature on the topic 'HALOGEN DERIVATIVES'

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Journal articles on the topic "HALOGEN DERIVATIVES"

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Akune, Yoko, Risa Hirosawa, Atsushi Koseki, and Shinya Matsumoto. "Role of halogen substituents in a series of polymorphic 2,5-diamino-3,6-dicyanopyrazine derivatives with highly flexible groups." Zeitschrift für Kristallographie - Crystalline Materials 232, no. 5 (2017): 395–405. http://dx.doi.org/10.1515/zkri-2016-2007.

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AbstractThe crystal structures of the ortho-X-benzyl derivatives, where X=F, Cl, Br, I, and Me, of 2,5-bis(N,N-dibenzylamino)-3,6-dicyanopyrazine dyes (C34H24N6X4) were analysed to evaluate the effect of a systematic series of structures on the occurrence of polymorphism. Detailed crystal structure analysis indicated that the thermally stable forms of the polymorphic derivatives (Cl and Br derivatives) were close-packed, whereas those of the non-polymorphic derivatives (F and I derivatives) were stabilised by an intermolecular interaction involving the ortho-substituents. In the thermally meta
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Chen, Yating, Yibin Zhou, Zhiqiang Wang, et al. "Enhanced mechanofluorochromic properties of 1,4-dihydropyridine-based fluorescent molecules caused by the introduction of halogen atoms." CrystEngComm 21, no. 29 (2019): 4258–66. http://dx.doi.org/10.1039/c9ce00348g.

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Halogen-substituted 1,4-dihydropyridine derivatives exhibit higher contrast mechanofluorochromic properties than the derivative without a halogen atom because of more twisted conformations and looser stacking arrangements.
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Cavallo, Gabriella, Jane S. Murray, Peter Politzer, Tullio Pilati, Maurizio Ursini, and Giuseppe Resnati. "Halogen bonding in hypervalent iodine and bromine derivatives: halonium salts." IUCrJ 4, no. 4 (2017): 411–19. http://dx.doi.org/10.1107/s2052252517004262.

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Halogen bonds have been identified in a series of ionic compounds involving bromonium and iodonium cations and several different anions, some also containing hypervalent atoms. The hypervalent bromine and iodine atoms in the examined compounds are found to have positive σ-holes on the extensions of their covalent bonds, while the hypervalent atoms in the anions have negative σ-holes. The positive σ-holes on the halogens of the studied halonium salts determine the linearity of the short contacts between the halogen and neutral or anionic electron donors, as usual in halogen bonds.
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Scattolin, Thomas, Fabiano Visentin, Claudio Santo, Valerio Bertolasi та Luciano Canovese. "The unexpected case of reactions of halogens and interhalogens with halide substituted Pd(ii) σ-butadienyl complexes". Dalton Transactions 45, № 28 (2016): 11560–67. http://dx.doi.org/10.1039/c6dt01964a.

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Palladium σ-butadienyl derivatives react with halogens and interhalogens, under mild experimental conditions, to induce the substitution of the halogen to coordinated palladium and to the terminal butadienyl carbon without extrusion of the butadienyl fragment.
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Boule, P., K. Othmen, C. Richard, B. Szczepanik, and G. Grabner. "Phototransformation of halogenoaromatic derivatives in aqueous solution." International Journal of Photoenergy 1, no. 1 (1999): 49–54. http://dx.doi.org/10.1155/s1110662x99000094.

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The photochemical behaviour of monohalogeno-phenols and -anilines is highly dependent on the position of the halogen on the ring, but most often it is not significantly influenced by the nature of the halogen (Cl, Br, F). Photohydrolysis is the main reaction observed with 3-halogenated and it is almost specific. With 2-halogenated, photohydrolysis and photocontraction of the ring compete, the latter being very efficient with 2-halogeno-phenolates.The photochemical behaviour of 4-halogeno-phenols and -anilines is more complex. It depends on both concentration and oxygenation. It was rationalize
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Matsuo, Kazuki, Tadashi Yoshitake, Eiji Yamaguchi та Akichika Itoh. "Photoinduced Atom Transfer Radical Addition/Cyclization Reaction between Alkynes or Alkenes with Unsaturated α-Halogenated Carbonyls". Molecules 26, № 22 (2021): 6781. http://dx.doi.org/10.3390/molecules26226781.

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We have developed a photochemical ATRA/ATRC reaction that is mediated by halogen bonding interactions. This reaction is caused by the reaction of malonic acid ester derivatives containing bromine or iodine with unsaturated compounds such as alkenes and alkynes in the presence of diisopropylethylamine under visible light irradiation. As a result of various control experiments, it was found that the formation of complexes between amines and halogens by halogen-bonding interaction occurs in the reaction system, followed by the cleavage of the carbon–halogen bonds by visible light, resulting in th
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Zhang, Yu, Jian-Ge Wang, and Weizhou Wang. "Noncovalent Interactions between 1,3,5-Trifluoro-2,4,6-triiodobenzene and a Series of 1,10-Phenanthroline Derivatives: A Combined Theoretical and Experimental Study." Crystals 9, no. 3 (2019): 140. http://dx.doi.org/10.3390/cryst9030140.

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How many strong C−I⋯N halogen bonds can one 1,3,5-trifluoro-2,4,6-triiodobenzene molecule form in a crystal structure? To answer this question, we investigated in detail the noncovalent interactions between 1,3,5-trifluoro-2,4,6-triiodobenzene and a series of 1,10-phenanthroline derivatives by employing a combined theoretical and experimental method. The results of the quantum chemical calculations and crystallographic experiments clearly show that there is a structural competition between a C−I⋯N halogen bond and π⋯π stacking interaction. For example, when there are much stronger π⋯π stacking
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Thompson, Laurence K., Sanat K. Mandal, Jean-Pierre Charland, and Eric J. Gabe. "Magnetism and structure in a series of halogen and hydroxo-bridged binuclear copper(II) diazine complexes. Structure of a dibromobridged derivative [Cu2(C14H10N4S2)Br4]." Canadian Journal of Chemistry 66, no. 2 (1988): 348–54. http://dx.doi.org/10.1139/v88-060.

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The ligand PTP (3,6-bis(2-pyridylthio)pyridazine) generates both hydroxo- and halogeno-bridged, square-pyramidal, binuclear copper(II) complexes ([Cu2(PTP)X4] (X = Cl (I), Br (II)); [Cu2(PTP)(OH)X3] (X = Cl (IV), Br (V)), which are antiferromagnetically coupled. The hydroxo-bridged derivatives are more strongly coupled than those with just halogen bridges and within each pair of complexes substantially increased spin exchange is observed for the bromo-derivatives (−2J = 130.5 ± 0.4 (I), 243.5 ± 0.3 (II), 294 ± 3 (IV), 326 ± 6 (V) cm−1). A related halogen-bridged derivative [Cu2(PAP46Me)Cl4] (I
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Drzewiecka-Antonik, Aleksandra, Marta Struga, Agnieszka Głogowska, et al. "Synthesis, Structural Characterization and Biological Activity Evaluation of Novel Cu(II) Complexes with 3-(trifluoromethyl)phenylthiourea Derivatives." International Journal of Molecular Sciences 23, no. 24 (2022): 15694. http://dx.doi.org/10.3390/ijms232415694.

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Copper complexes with 1,3-disubstituted thiourea derivatives, all containing 3-(trifluoromethyl)phenyl tail and 1-alkyl/halogen-phenyl substituent, were synthesized. The experimental spectroscopic studies and theoretical calculation revealed that two ligands coordinate to Cu(II) in a bidentate fashion via thiocarbonyl S and deprotonated N atoms of thiourea moiety. Such monomers are characteristic of alkylphenylthiourea complexes, whereas the formation of a sandwich-type dimer is observed for halogeno derivatives. For the first time, the structural identifications of CuN2S2-based complexes usin
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Takimiya, K., Y. Kataoka, A. Morikami, Y. Aso, and T. Otsubo. "Halogen substituted tetraselenafulvalene derivatives." Synthetic Metals 120, no. 1-3 (2001): 875–76. http://dx.doi.org/10.1016/s0379-6779(00)00814-6.

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Dissertations / Theses on the topic "HALOGEN DERIVATIVES"

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Adam, David. "The synthesis and characterisation of halogen and nitro phenyl azide derivatives as highly energetic materials." Diss., lmu, 2001. http://nbn-resolving.de/urn:nbn:de:bvb:19-1842.

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Ishita, Keisuke. "Design, Synthesis and Evaluation of Carborane and Thiazole Derivatives." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1510937794366855.

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Wang, Kunlun. "Design and Synthesis of Novel Liquid Crystals and Organic Semiconductors." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1492881173762306.

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Paton, Andrew Simon. "Altering the Crystal Packing of Boronsubphthalocyanine Derivatives through Molecular Engineering." Thesis, 2013. http://hdl.handle.net/1807/35924.

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There are currently three known crystal packing motifs of boronsubphthalocyanine derivatives. Each motif is associated with a particular class of BsubPc derivatives, and none are ideal for organic electronic applications according to the criteria we defined for evaluation: having a continuous pathway for charge-carrier conduction in the solid-state, resistance to hydrolysis, good electrochemical and optical properties, and possession of a robust crystal form. In this thesis, we present five methods for altering the crystal packing structure of phenoxy-BsubPc derivatives in order to meet the ab
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Lin, Guan-Lin, and 林冠霖. "Investigation of Molecular Packing via Inducing mono Ester Functional or Halogen Group onto Hexakis(phenylethynyl)benzene Derivatives." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/jdw2pg.

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碩士<br>淡江大學<br>化學學系碩士班<br>102<br>Introduced ester functional and halogen groups into hexakis(phenylethynyl)benzene derivatives had been investigated in recently year. The ester and halogen groups effect two molecular π-π stacking into the higher order. According this result, in this thesis introduced the mono ester functional and halogen group into hexakis(phenylethynyl)benzene derivatives. The side chain of hexakis(phenylethynyl)benzene derivatives changed the long one into the short one. Then get the single crystal to analysed between two or more molecular π-π stacking. Expect the result can
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Adam, David [Verfasser]. "The synthesis and characterisation of halogen and nitro phenyl azide derivatives as highly energetic materials / von David Adam." 2001. http://d-nb.info/963258273/34.

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Chen, Sin-Ling, and 陳欣鈴. "Using Substituent Effects, Halogen Effect to Study the Photolytic Reactions of Propargyl and Allenic derivatives in Matrix Isolation System." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/68672676560341615048.

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碩士<br>義守大學<br>生物技術與化學工程研究所<br>101<br>There are two resonance forms of propargyl radical as show in the following equation: C≡C-CH2● ↔ C=C=CH● There are a lot of studies which related to this area. The most of literature which use the substituted propargyl derivatives as the starting material to generate the substituted propargyl radical and the yields of the products were used to investigate the contribution of two resonance forms. The results of the literature, which no matter what using the chemical or physical methods to do researches, supported the mesomeric form of propargyl radical contr
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Liao, Jia-Ju, and 廖家駒. "The mechanism study of the photo rearrangement of the substituted propargyl derivatives and allenyl derivatives in the matrix isolation by the substituent, the halogen effects and TEMPO radical trapping." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/86059633336263601458.

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碩士<br>義守大學<br>化學工程學系暨生物技術與化學工程研究所<br>103<br>To investigate the photo rearrangement reactions of the substituted propargyl derivatives and allenyl derivatives in matrix isolation by the substituent and halogen effects. The mechanism of the photorearrangement reactions was discussed. To use the TEMPO trapping method to capture the radical generated from the photorearrangement reaction of the propargyl derivative and allenyl derivative. The results show that the rate of TEMPO traps C3H3 radical generated from the photorearrangement reaction of the propargyl derivative and allenyl is faster than
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Chen, Tyng-Rong, and 陳庭蓉. "(I)Hydrogen, Halogen Bonding and Metal Ion-Induced Two Component Gel Formation of Triazolyl-pyridyl Substituted Calix[4]arene Derivatives (II)Syntheses of bis-Isoxazolyl-aryl Substituted Biscalix[4]arene Derivatives." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/jvy7sf.

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碩士<br>國立交通大學<br>應用化學系碩博士班<br>102<br>In recent years, calix[4]arene derivatives have been extensively studied in supramolecular gel formation. Although they can be used in ions recognition and oil spill recovery, they usually form one component gels. Two component gel formation of calix[4]arene was not known until Prof. Zheng’s work published in 2007. It worth noting that there have been few reports on using halogen bonding as intermolecular forces for gel formation. In this thesis, we used click chemistry reaction to synthesize triazolyl-pyridyl substituted calix[4]arene derivatives 33 , whic
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Wei-HanShen and 沈韋翰. "Synthesis of 3-Halogeno-2-Quinolinone Derivatives via Free Radical Cyclization Reaction." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/z8vq8a.

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Books on the topic "HALOGEN DERIVATIVES"

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Kreutz, Martin. Halogen-Metall-Austausch bei Bromnaphthalinen: Synthese, Struktur, und Reaktionsweisen mono- und polylithiierter Naphthaline. A.S. Intemann, 1991.

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D, Beritic-Stahuljak, Millischer R, Valic F, International Program on Chemical Safety., United Nations Environment Programme, and World Health Organization, eds. Partially halogenated chlorofluorocarbons (ethane derivatives). World Health Organization, 1992.

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D, Beritić-Stahuljak, Valic F, World Health Organization, and United Nations Environment Programme, eds. Partially halogenated chlorofluorocarbons (methane derivatives). World Health Organization, 1991.

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Coffey, S. General Introduction : Hydrocarbons, Halogen Derivatives: A Modern Comprehensive Treatise. Elsevier, 2016.

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Hudlic'ky, Milos. Fluorine Chemistry for Organic Chemists. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780195131567.001.0001.

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This book is a synthesis of two of Hudlicky's earlier books outlining the many unpredictable properties of fluorine and its compounds that are not analogous to the properties of any other halogens and their compounds. It is divided into two separate sections, the first presenting peculiar reactions as problems to be solved. Each reaction can be analyzed in the lab without the help of the second section, however if a solution is not easily reached, the second section provides discussion of the problems, outlining the products of the reactions and their mechanisms. Among the 105 reactions outlin
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The World Market for Halogenated Derivatives of Acyclic Hydrocarbons Containing Two or More Different Halogens: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007 Import and Export Market for Halogenated Derivatives of Acyclic Hydrocarbons Containing Two or More Different Halogens in India. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Halogenated Derivatives of Acyclic Hydrocarbons Containing Two or More Different Halogens in China. ICON Group International, Inc., 2006.

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Parker, Philip M. The World Market for Halogenated Derivatives of Acyclic Hydrocarbons Containing Two or More Different Halogens: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Halogenated Derivatives of Acyclic Hydrocarbons Containing Two or More Different Halogens in United States. ICON Group International, Inc., 2006.

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Book chapters on the topic "HALOGEN DERIVATIVES"

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Alfred, Moses O., Daniel T. Koko, Ahmad Hosseini-Bandegharaei, Artur J. Motheo, and Emmanuel I. Unuabonah. "The Halogen-Oxyanion Derivatives as Contaminants of Concern in Water." In Progress and Prospects in the Management of Oxyanion Polluted Aqua Systems. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70757-6_10.

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Marcinkiewicz, Janusz, Markus Nagl, Anthony Kyriakopoulos, Maria Walczewska, Magdalena Skóra, and Paulina Skalska. "Current Opinion on the Therapeutic Capacity of Taurine-Containing Halogen Derivatives in Infectious and Inflammatory Diseases." In Advances in Experimental Medicine and Biology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93337-1_8.

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"HALOGEN DERIVATIVES." In Understanding Advanced Chemistry Through Problem Solving. WORLD SCIENTIFIC, 2023. http://dx.doi.org/10.1142/9789811281839_0007.

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Vargel, Christian. "Halogen Derivatives." In Corrosion of Aluminium. Elsevier, 2004. http://dx.doi.org/10.1016/b978-008044495-6/50033-1.

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Vargel, Christian. "Halogen derivatives." In Corrosion of Aluminium. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-08-099925-8.00055-7.

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"HALOGEN DERIVATIVES." In Understanding Advanced Chemistry Through Problem Solving. WORLD SCIENTIFIC, 2014. http://dx.doi.org/10.1142/9789814596503_0007.

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"Halogen Derivatives." In Understanding Advanced Organic and Analytical Chemistry. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789814733991_0007.

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"Halogen Derivatives." In Understanding Advanced Organic and Analytical Chemistry. WS EDUCATION, 2011. http://dx.doi.org/10.1142/9789814374996_0007.

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García Ruano, J. L., M. B. Cid, A. M. Martín-Castro, and J. Alemán. "Using Halogen Derivatives." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00377.

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García-Ruano, J. L., M. B. Cid, A. M. Martín-Castro, and J. Alemán. "Oxidation with Halogen Derivatives." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00961.

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Conference papers on the topic "HALOGEN DERIVATIVES"

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Cheng, L., R. C. May, and K. M. Given. "A New Environmentally-Preferred Copper Corrosion Inhibitor." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99101.

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Abstract Copper and its alloys have excellent heat transfer properties and are widely used in industrial cooling water systems. A corrosion inhibitor, however, is needed to prevent equipment failures and to reduce the discharge of toxic copper compounds into the environment. Although azoles such as benzotriazole and tolyltriazole have been used to protect copper alloys from corrosion, they react with oxidizing halogens which are commonly used to control microbiological activity. Their reaction with chlorine, for example, produces species that are not protective to copper. The inhibitor films f
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May, Roger C., Longchun Cheng, and Feng Shao. "Second Generation, Halogen Resistant Copper Corrosion Inhibitors." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02413.

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Abstract Copper alloys are utilized in industrial cooling systems because of their excellent heat transfer properties. However, a corrosion inhibitor is needed to prevent equipment failures and, very importantly, to reduce the discharge of toxic copper compounds into the environment. Azoles, such as benzotriazole (BZT) and tolyltriazole (TTA), have been used for this purpose but they do not protect copper in the presence of oxidizing halogens which are commonly added to cooling systems to control microbiological activity. The halogens react with BZT and TTA and destroy their corrosion inhibiti
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Dwivedi, Y., S. B. Rai, V. K. Vaidyan, and V. S. Jayakumar. "Vibrational Spectroscopy of Halogen Substituted Benzene Derivatives." In PERSPECTIVES IN VIBRATIONAL SPECTROSCOPY: Proceedings of the 2nd International Conference on Perspectives in Vibrational Spectroscopy (ICOPVS 2008). AIP, 2008. http://dx.doi.org/10.1063/1.3046234.

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ln-Nam Kang, Do-Hoon Hwang, and Hong-Ku Shim. "Syntheses and electrical properties of halogen substituted PPV derivatives." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835285.

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Kepeňová, Martina, Michaela Benediková, Mária Vilková, Miroslava Litecká, and Ivan Potočňák. "Ionic palladium(II) complexes with nitro and halogen derivatives of 8-hydroxyquinoline." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.443k.

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Four commercially unavailable derivatives of 8-hydroxyquinoline with different functional groups (nitro and halogen) in positions 5 and 7 were prepared: 5-nitro-7-iodo-8-hydroxyquinoline (HNIQ), 5-nitro-7-bromo-8-hydroxyquinoline (HNBrQ), 5-iodo-7-bromo-8-hydroxyquinoline (HIBrQ) and 5-chloro-7-bromo-8-hydroxyquinoline (HClBrQ). Their characterization was performed by IR and NMR spectroscopy, elemental analysis and in the case of HIBrQ and HClBrQ by single crystal X-ray structure analysis. Prepared compounds were used for the synthesis of new palladium(II) complexes NH2(CH3)2[PdCl2(XQ)], where
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Ibrayev, N. Kh, E. Seliverstova, D. Afanasyev, A. Nurmakhanova, N. A. Davidenko, and A. A. Ishchenko. "Photonics of cyanine dyes of different ionicity in matrices of halogen-containing derivatives of PEPC." In 2017 IEEE 7th International Conference "Nanomaterials: Application & Properties" (NAP). IEEE, 2017. http://dx.doi.org/10.1109/nap.2017.8190246.

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de Miguel, P., N. Martin, C. Seoane, A. Albert, and F. H. Cano. "Synthesis, electrochemical properties and crystal structure of thiophene fused halogen containing tcnq and dcnqi derivatives with /spl pi/-extended systems." In International Conference on Science and Technology of Synthetic Metals. IEEE, 1994. http://dx.doi.org/10.1109/stsm.1994.835512.

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Arkhireev, V. O., Z. V. Nesterova, and V. A. Nesterova. "The ultrashort light pulse handling in electrooptic modulators with Raman-active media." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cthi67.

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The electrooptic modulators (EOMs), which contain the liquid-filled capillary optical fiber (OF), are very attractive as model systems in the investigation of the light manipulations in nonlinear waveguides and in the various fiber-based sensors. The marked properties of liquid-filled OF are the ideal step-index profile in a core and the possibility of mode content variation due to change of the core temperature. Moreover, there is a great number of the neat organic liquids with strongly different nonlinearities, which are suitable to these investigations. The key problem discussed is the role
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Israyilova, A. A., Kh E. Huseynova, N. A. Mamedova, A. A. Shahmuradova, N. G. Shikhaliyev, and Kh G. Ganbarov. "The antibacterial activity of the 4-halogeno phenil 2-nitro benziliden hydrazine derivatives." In Scientific dialogue: Medicine issues. ЦНК МОАН, 2020. http://dx.doi.org/10.18411/sciencepublic-15-06-2020-07.

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Zokirov, Sodikjon, Fozil Juraboev, and Bakhtiyor Tursunov. "Synthesis of halogen derivatiyes of 1-hexin-3-Ol and study of their antimicrobial properties." In “INTERNATIONAL CONFERENCE ON PHYSICAL RESEARCH & ENGINEERING TECHNOLOGY PROBLEMS”: (PRETP 2024). AIP Publishing, 2025. https://doi.org/10.1063/5.0269314.

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