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Dissertations / Theses on the topic 'Fluorinated compounds'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 March 2023

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1

Boldon, Sophie. "Fluorous synthesis of fluorinated compounds." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540126.

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2

Parkes, Michael Anthony. "Ionisation studies of chlorinated and fluorinated compounds." Thesis, University of Birmingham, 2007. http://etheses.bham.ac.uk//id/eprint/74/.

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Ionisation processes in gas-phase polyatomic molecules have been studied using threshold photoelectron photoion coincidence and selected ion flow tube techniques for cations and an electron attachment mass spectrometer for anions. Cation formation has been studied for fluoroform (CHF\(_3\)), octafluorocyclobutane (\(c\)-C\(_4\)F\(_8\)), octafluorocyclopentene (\(c\)-C\(_5\)F\(_8\)), monochloroethene (C\(_2\)H\(_3\)Cl), the three isomers of dichloroethene (C\(_2\)H\(_2\)Cl\(_2\)) (i.e. 1,1-dichloroethene, (\(Z\))-1,2-dichloroethene and (\(E\))-1,2-dichloroethene), trichloroethene (C\(_2\)HCl\(_
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3

Padoan, Gennifer. "Synthesis of fluorinated compounds for biomedical applications." Nice, 2012. http://www.theses.fr/2012NICE4044.

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Une méthodologie rapide et économique pour la préparation des PFEs de formule générale (CF2)m(CH2)2O(CH2)nH, obtenus par réaction des 1H,1,H,2H,2H-perfluoro-1-alcanols avec des 1-bromoalcanes sous conditions basiques est fournie. Cette procédure a fourni des produits très purs avec des rendements de plus de 65%. Ensuite, les propriétés physico-chimiques telles que la densité, l’indice de réfraction, etc. Dans un grand choix de solvants ont été étudiées. Leur comparaison avec des n-alcanes partiellement fluorés ont été évalués afin d’étudier le rôle du rapport m/n et l’influence de la liaison é
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4

Schaff, Jilla. "Fluorinated esters : synthesis and identification." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3921.

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Reactions of different alcohols with 2-hydroxy - 1- trifluoromethyl -1,2,2-trifluoroethanesulfonic acid sultone were studied. Six new esters were prepared: C6F5OC(O)CF(CF3)SO2F, CH3CH2OC(O)CF(CF3)SO2F, CF3CH2OC(O)CF(CF3)SO2F, (CF3)2CHOC(O)CF(CF3)SO2F, CH2=CHCH20C(O)CF(CF3)SO2F, (CH2OC(O)CF(CF3)SO2F)2. Analytical data, infrared, nmr and mass spectra are presented supporting the proposed structures for these new compounds.
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5

Mojally, Mariam. "DNA binding studies of fluorinated bioactive heterocyclic compounds." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/16732.

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Fluorinated heterocyclic compounds have drug like properties and possess a valuable biological activity due to their rigid chemical structures and the high solubility profile. Novel fluorinated heteroarenes have been synthesised by SNAr reaction of a range of fluorinated arenes including pentafluoropyridine, hexafluorobenzene and pentafluorotoluene to introduce a range of groups specially nitriles, benzimidazole, carbazole and benzimidazole. A number of cyclization reactions have been investigated with the aim of forming polycyclic structures that could act as DNA intercalators. The synthesise
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6

Mohtasham, Javid. "Fluorinated [beta]-sultones as Precursors to Fluorinated Sulfonic Acids, and New Fluorosulfonyl Containing Monomers/Polymers." PDXScholar, 1989. https://pdxscholar.library.pdx.edu/open_access_etds/1250.

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Sulfur trioxide (SO₃) adds to fluoroolefins of the form RCF=CF₂, (where R = F, SF₅, CF₃, CF₃OCF₂, CF₂=CF(CF₂)₂, CF₃(CF₂)₃O, CF₃O(CF₂)₂OCF₂, or CH₂ClCHClCH₂), yielding the fluorinated [beta]-sultones, RCFCF₂OSO₂. In the case of CF₃(CF₂)₃OCF=CF₂, a reverse addition occurs, giving the sultone, CF₃(CF₂)₃CF₂2OCFCF₂SO₂O. The fluoro [beta]-sultones are capable of undergoing different reactions, such as rearrangement, hydrolysis, esterification, and polymerization. These reactions, will result in the formation of compounds containing the fluorosulfonyl grouping (SO₂F); it is this group that yields the
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7

Cho, Don Mark. "Partially fluorinated polycyclic aromatic compounds synthesis and supramolecular behavior /." Lexington, Ky. : [University of Kentucky Libraries], 2006. http://lib.uky.edu/ETD/ukychem2007t00544/Cho_thesis.pdf.

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Thesis (M.S.)--University of Kentucky, 2006.<br>Title from document title page (viewed on February 27, 2007). Document formatted into pages; contains: xiv, 69 p. : ill. (some col.). Includes abstract and vita. Includes bibliographical references (p. 64-68).
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8

Cho, Don Mark. "PARTIALLY FLUORINATED POLYCYCLIC AROMATIC COMPOUNDS: SYNTHESIS AND SUPRAMOLECULAR BEHAVIOR." UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_theses/443.

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The field of organic electronics has received much attention over the last few years, and engineering of organic crystals to grow with pi-electron systems arranged in a face-to-face motif has been shown to be beneficial in electronic devices. The effects of combining aromatic and perfluorinated aromatic derivatives have shown that the intramolecular stacking pattern can be changed from an edge-to-face arrangement to that of a face-to-face motif. Before the work described herein, there were no reported studies of the supramolecular behavior of fused polycyclic aromatic compounds with partial pe
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9

Odello, Paolo. "Chemistry of some model compounds related to fluorinated polymers." Thesis, Durham University, 1993. http://etheses.dur.ac.uk/5553/.

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The work described in this thesis is concerned with three areas which are the generation of stable carbocations from saturated model compounds related to poly- vinylidenefluoride, the development of synthetic routes to fluoro-organo-phosphazenes with intention of obtaining some potential additives for perfluoropolyether fluids operating at elevated temperatures, and pericyclic reactions involving fluorinated olefins.1. We reported that some remarkable conjugated cations, and di-cations (4a) are obtained by reaction of hydrofluorocarbon precursors (4) with an excess of antimony pentafluoride. C
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10

Begum, Lovely. "The synthesis of fluorinated analogues of biologically active compounds." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343327.

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11

Sergis, Andreas Neophytos. "Reactions of sulphone stabilised carbanions with fluorinated aromatic compounds." Thesis, University of Greenwich, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280469.

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12

Ceretta, Flavio. "Synthesis and characterization of fluorinated compounds for industrial applications." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423021.

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The presence of fluorine atoms in the structure of an organic molecule alters in an extraordinary way its physico-chemical properties and the countless applications of organo-fluorine compounds are a strong testimony of it. The unique properties of fluorinated surfaces (low surface tension, dielectric constant, friction coefficient) derive from the particular features of the C-F bond (Chapter 1). Thanks to their exceptionally low intermolecular interactions, fluorinated compounds produce surfaces with very low interfacial energies which are hardly wet by aqueous and organic liquids, have an
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13

Frew, Jamie J. R. "Novel bulky fluorinated ligands for homogeneous catalysis." Thesis, University of St Andrews, 2008. http://hdl.handle.net/10023/852.

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A series of novel monodentate and bidentate phosphine ligands substituted with bulky tert-butyl and fluorinated aryl groups have been synthesised. Borane protection has proved to be an excellent method for easy synthesis and purification of bidentate ligands in some cases. However, several of the bulky fluorinated ligands do not form stable borane complexes leading to complications in the synthesis and purification of these compounds. By reaction with transition metal platinum and palladium precursors, it was possible to form dichloride complexes from the synthesised ligands, which were charac
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14

Tüxen, Jens [Verfasser]. "Highly Fluorinated Model Compounds for Matter-Wave Interferometry / Jens Tüxen." München : Verlag Dr. Hut, 2012. http://d-nb.info/1023435454/34.

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15

Jones, Charlotte E. S. "Enantioselective homogeneous catalysts for the synthesis of fluorinated organic compounds." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2611.

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This thesis is divided into three main results chapters that reflect the path my research took. In the first results chapter, the first organocatalyst for the carbonyl-ene reaction was discovered and found to give high conversion using 1,3-bis(3,5-bis(trifluoromethyl)phenyl)thiourea. Various carbonyl and alkene precursors were examined in the ene reaction in both catalysed and uncatalysed reactions. It was found that ene reactions using fluoral and ethyl trifluoropyruvate give higher rates of reaction when compared to other carbonyl compounds. A novel enantiopure thiourea was synthesised and t
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16

Reid, Karen A. "Biochemical studies of fluoroacetate and 4-fluorothreonine biosynthesis in Streptomyces cattleya." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241432.

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17

Yam, Fei. "Poly-fluorinated metallo-corroles as biomimetic catalyst for epoxidation and H₂O₂-dismutation /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202004%20YAM.

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18

Heathfield, Adam Edward. "Potential contributions to global warming from several partially fluorinated ether compounds." Thesis, University of York, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296566.

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19

Man, Wai Fan. "Fluorinated diamond-like carbon films deposited by ion beam CVD." HKBU Institutional Repository, 1999. http://repository.hkbu.edu.hk/etd_ra/192.

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20

Zeinali, Fatemeh. "Synthesis of fluorinated heterocyclic compounds and study of their interaction with DNA." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/25150.

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Over fifty structurally diverse, novel fluorinated heteroarenes, have been successfully synthesised by SNAr reaction of a range of fluorinated arenes including pentafluoropyridine, hexafluorobenzene, and methyl pentafluorobenzoate by introduction of a range of groups such as imidazole, triazole, benzimidazole, benzotriazole, and carbazole. Different water solubilising side chains were introduced to some of the successfully synthesised fluorinated heteroarenes to improve water solubility and potential biological activity. X-ray crystal structures of over 10 compounds were obtained including tho
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21

He, Meinan. "High Voltage Electrolyte Based on Fluorinated Compounds for High Energy Li-ion Chemistry." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-dissertations/489.

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"Lithium ion batteries have dominated the portable electronics market and have the potential to dominate large-scale battery applications including hybrid and electric vehicles, as well as grid storage, because of their high energy and power densities1,2. It is well known that conventional electrolytes show poor anodic stabilities above 4.5 V versus Li/Li+.3 As a result, high voltage electrolytes are essential for the development of next generation high energy lithium ion batteries. Both fluorinated electrolytes and additives can be introduced into the electrolyte system.4 In this work, fluori
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22

Wood, Dan R. W. "The synthesis and characterisation of novel fluorinated compounds suitable for evaluation as oil additives." Thesis, University of Leicester, 2002. http://hdl.handle.net/2381/30073.

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A review of the history, development and application of lubricant additives in mineral oils is presented, along with recent developments in base fluids leading to need for fluorous phase soluble compounds in this area. The experimental work illustrated in this thesis describes the synthesis of a series of perfluoroalkyl-derivatised dithiophosphate (Rf = (CH2)2C6F 13, (CH2)2C4F9, (CH 2)3CF3) (1) and xanthate (Rf = (CH 2)2C6F13, (CH2)2C 4F9, (CH2)3C8F17, (CH2)3C6F13, (CH2) 3CF3) (2) ligands and closely related perprotio analogues (RH = C8H17), which have been analysed by 1H, 19F and 31P{1H} NMR
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23

Holcomb, Nelson R. "Synthesis and Characterization of Novel Fluorine Containing Alkylsulfonyls and Sulfonates : Fluorinated Sulfonyl Methanes and Derivatives." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5055.

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A series of salts of the strong fluorocarbon acid bis(trifluoromethylsulfonyl)methane were made: (CF3S02 ) 2CHK, (CF3S02 ) 2CHLi, [ (CF3S02 ) 2CH] 2Ca, [ (CF3S02 ) 2CH] 2Hg, (CF3S02 ) 2CHAg, [ (CF3S02 ) 2CH] 3La. Their reactivity and use as organic intermediates were investigated. The salts were made from their corresponding carbonates, oxides, or hydrides. The reaction times for the salts is generally short, however the purification process was laborious, involving recrystallization from organic solvents and drying under vacuum. The lithium salt is being evaluated as a solid state battery ele
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24

Choi, Yoon S. "Studies in Fluorine Chemistry: 13C NMR Investigation of SF5/SO2F Fluorinated Systems." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4717.

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The purpose of this thesis was two fold: (i) The synthesis and characterization of SF5 containing dienes. (ii) The characterization of hydro/fluorocarbon compounds containing SF5/S02F groups via their 13C NMR spectra. A new SF5CH2CHBrCH2CF=CF2 was prepared and characterized as a precursor to new dielectric polymers. This new adduct was made from the reaction of pentafluorothio bromide with l,l,2-trifluoro-1,4-pentadiene. A SF5-diene was prepared from the reaction of pentafluorothio chloride with acetylene. This reaction involves a radical addition mechanism. The SF5 group is bonded to the carb
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25

Ou, Xiaobo. "Reaction mechanisms of main group fluorinated compounds, application of the coordination model of reaction mechanisms." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ32885.pdf.

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26

Greally, Brian Roger. "Development of an analytical system for the determination of highly fluorinated compounds in air samples." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302161.

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27

Hendriks, Christian Barend Stephanus. "The role of endophytes in the metabolism of fluorinated compounds in the South African Dichapetalaceae." Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/24657.

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Dichapetalum cymosum (poison leaf) is a very common problem plant in southern Africa. Fluoroacetic acid, believed to be the poisonous entity in the plant, is produced by the plant, but the micro-organisms associated with this plant may also play a role in the production thereof. A previous study on Burolderia cepacia, an endophyte of D. cymosum showed active metabolism of fluoroacetate by this endophyte. The isolated endophytes from D. cymosum were studied to determine whether they synthesise any fluorinated compounds. It seemed from preliminary results that symbionts might play a role in the
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28

Hüter, Ole [Verfasser]. "Femtochemistry of Vibronically Coupled Excited Electronic States of Carbonyl Compounds and Highly Fluorinated Benzene / Ole Hüter." Kiel : Universitätsbibliothek Kiel, 2019. http://d-nb.info/1192755391/34.

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29

Johnson, Bernadette. "Fluorinated #alpha#-amino acid analogues of L-methionine and related compounds for use as potential enzyme inhibitors." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264261.

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30

Mykhaylychenko, Sergiy. "Study of perfluoroketene dithioacetals and N,S-acetals for the synthesis of fluorinated acyclic and heterocyclic compounds." Rouen, 2008. http://www.theses.fr/2008ROUES066.

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Les dithioacétals de perfluorocétènes sont des « synthons » simples et polyvalents pour la synthèse d'une large variété de composés fluorés acycliques et cycliques. Des transformations efficaces et directes des g-lactones a,b-insaturées en g-lactames et en pyridazin-3-ones substitués par un groupement 2,2,2-trifluoroéthyle ont été effectuées, à partir d'amines primaires et d'hydrazines variées et des dithioacétals de perfluorocétènes. La structure de tous les nouveaux composés a été assignée en utilisant les données de RMN (19F, 1H, 13C), d'IR et de MS et par diffraction des rayons X. Les réac
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31

Upthagrove, Alana L. "CYP2D6 and CYP1A2 catalyzed metabolism of propranolol related fluorinated amines : effects of changes in amine pKa and other properties /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/8167.

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32

Liu, Xian-He. "Perfluoroalkylated compounds at the Interfaces : surface nanodomains and spherulites : interactions with phospholipid films." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAF029.

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Cette thèse concerne l’auto-assemblage d'alcanes semi-fluorés (FnHm) et de fluorocarbures (FCs) aux interfaces et leurs interactions avec des phospholipides (PLs) en 2D et 3D. Nous avons étudié les sphérulites formées dans des films de diblocs FnHm. La morphologie de ces sphérulites, concentrique ou radiale, est contrôlée par la longueur des blocs Fn et Hm et la vitesse de refroidissement. Les nanodomaines de diblocs FnHm dans les monocouches de Langmuir sont incompressibles et forment des gels physiques 2D, même à pression nulle. Les blocs Hm sont cristallisés et inclinés d’ ~30°C par rapport
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33

Li, Wei. "Sol-gel synthesis of TiO2 anatase in a fluorinated medium and its applications as negative electrode for Li+ and Na+ batteries." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066238/document.

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Le dioxyde de titane (TiO2) est un matériau polyvalent qui présente des propriétés intéressantes allant de la catalyse au stockage et conversion d'énergie. Afin d'améliorer ses propriétés physico-chimiques, plusieurs approches ont été appliquées telles que, la réduction de la taille des particules, modification de la morphologie, le dopage par d'autres éléments. Dans cette thèse, une nouvelle méthode de synthèse basée sur la chimie de sol-gel est développée en milieu fluoré. Les anions divalents de O2- dans TiO2 anatase sont substitués par anions monovalents de F- et OH-, le déficit de charge
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34

Yamamoto, Hiroki. "Syntheses, Structures, and Applications of Inorganic Materials Functionalized by Fluorine." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263756.

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35

Liebau, frank. "Synthese neuer hochfluorierter Rh- und Ir-Komplexe zur Katalyse im perfluorierten Solvent und überkritischem Kohlenstoffdioxid." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17502.

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Die vorliegende Arbeit beschäftigt sich mit homogenkatalytisch gesteuerten Dehydrierungsreaktionen unter Verwendung von fluorierten und hochfluorierten Metallkomplexen. Reaktivitätsuntersuchungen wurden vorrangig in einem perfluorierten Lösungsmittel durchgeführt, in dem die hochfluorierten Komplexe besondere Löslichkeit aufwiesen. Ferner fand in überkritischem Kohlenstoffdioxid ebenfalls homogen katalysiert die Hydrierung eines Alkens mit hoher Umsatzzahl statt. Die Aktivierung der Katalysatorvorläufer erfolgte in allen Fällen photolytisch. Die Modifizierung bekannter Strukturmotive metallor
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36

Bidoggia, Silvia. "Mixed-monolayer protected gold nanoparticles for applications in medicine." Doctoral thesis, Università degli studi di Trieste, 2013. http://hdl.handle.net/10077/8573.

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2011/2012<br>In the last years, gold nanoparticles (AuNPs) protected by an organic shell of ligands have received a large interest for applications in the biomedical field in particular for diagnosis, imaging and therapy. This class of nanomaterials is largely used because of the easy of synthesis with different core sizes and shapes and controlled dispersion. Moreover, NPs can be protected by a large variety of organic compounds, with different functionalities and to allow the linkage of drugs and biomolecules. The nature of the ligand is responsible of the solubility of the NPs and could be
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37

Compain, Guillaume. "Cyclisation et hydrofluoration de composés azotés insaturés en milieu superacide." Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2287/document.

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Du fait de l'extrême acidité des milieux superacides, le comportement des composés organiques y est particulièrement singulier, et en particulier celui des composé azotés. Ces milieux permettent d'accéder par polyprotonation à des intermédiaires superélectrophiles polycationiques, capables d'être piégés par des nucléophiles faibles, comme les ions fluorures solvatés du milieu ou des aromatiques désactivés. L'activation superélectrophile permet en outre d'accéder à une régiosélectivité unique en rendant certains sites réactifs, insensibles dans les milieux acides plus classiques.Dans la premièr
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38

Zhang, Bo. "Multidimensional NMR Characterization of Perfluorinated Monomer and Its Precursors." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1353075522.

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39

Thompson, Stephen. "Exploring the substrate scope of the fluorinase from Streptomyces cattleya for applications to positron emission tomography." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7805.

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The fluorinase enzyme, originally isolated from Streptomyces cattleya, has the unique ability to generate a C–F bond from aqueous fluoride ion and S-adenosylmethionine, making the fluorinase an attractive biochemical tool for radiolabelling biomolecules with fluorine-18 for application to positron emission tomography (PET). The inherent substrate specificity of the enzyme is, however, limiting, as only small modifications to the natural nucleoside substrate were known to be tolerated. This thesis describes an exploration and expansion of the substrate scope of the fluorinase enzyme, and its ap
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40

Massolo, E. "NOVEL SYNTHETIC ORGANOCATALYTIC METHODOLOGIES." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/330262.

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The objective of this PhD study was to apply organocatalytic synthetic methods for the regio- and stereoselective synthesis of highly functionalized compounds. We exploited different organocatalytic activation modes to peculiar substrates we identified as suitable building blocks for versatile products in enantiomerically enriched form. In particular the developed projects relied on stereoselective amino- and hydrogen bonding organocatalysis, employing beta-nitroacrylates, beta-trifluoromethylated nitroalkenes and 2,2,2-trifluoroethyl 2-[(1,3-dithian)-2-yl]-ethanthioate in combination with var
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41

Youngstrom, Cameron Royal. "Elemental fluorination the synthesis of fluorinated polymers, organometallics and organic molecules /." 2002. http://wwwlib.umi.com/cr/utexas/fullcit?p3089493.

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42

Alexandrino, Diogo Alves da Mota. "Biodegradation of fluorinated compounds widely used in agro-industrial applications." Master's thesis, 2016. https://repositorio-aberto.up.pt/handle/10216/87141.

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43

Lee, Tse-Hsuan, and 李澤軒. "Fluorinated Nanoparticles in Conjugated Polymer for Volatile Organic Compounds Sensor." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/69904562998213659627.

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碩士<br>國立臺灣大學<br>材料科學與工程學研究所<br>104<br>Human health care and environmental protection have growing attention in recent years, and are no longer an acceptable trade-off for economy for the majority of people. The most hazardous and toxic chemicals are volatile organic compounds (VOC), which are mainly released from oil refinery, factory ,household paints, etc. Although VOCs are used extensively and known for their hazardous , little protective measurements have been developed to provide effective warning signal before the harmful high level of VOC. These invisible and toxic VOC put the human saf
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44

Alexandrino, Diogo Alves da Mota. "Biodegradation of fluorinated compounds widely used in agro-industrial applications." Dissertação, 2016. https://repositorio-aberto.up.pt/handle/10216/87141.

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45

CAO, YIJIAN. "STONE ARTIFACTS CONSERVATION: SYNTHESIS AND STUDY OF NEW PARTIALLY FLUORINATED COMPOUNDS." Doctoral thesis, 2019. http://hdl.handle.net/2158/1152325.

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The survival of our mankind’s stone heritage is confronted with severe, diverse degradation events that derive from physical, chemical and biological origins. Nowadays, to mitigate or/and halt the decay phenomena, synthetic polymers are widely used owing to their good hydrophobicity, chemical compatibility, stability and in some cases, the ability to act also as consolidation agents. Yet, they also show several drawbacks in long-term use. Acrylic polymers have poor photo-oxidative stability due to structural reasons, while silicon based resins are reactive with some specific stones and may bec
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46

Schultz, Melissa M. "Determination of fluorinated alkyl substances in aqueous systems." Thesis, 2004. http://hdl.handle.net/1957/31794.

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Fluorinated alkyl substances, which can be persistent, toxic, and bioaccumulative, have been quantitated in many densely populated and remote regions, including in air, surface waters, groundwater, and biota; however, little is known about their transport or behavior in the environment. Wastewater effluent is one of the principal routes for introducing environmental contaminants into aquatic environments. The partitioning behavior of fluorinated alkyl substances between aqueous and particulate phases is not well characterized; thus, sorption onto sludge can be a removal mechanism of fluorinate
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47

Amorim, Catarina Raquel Leite. "Microbial degradation of fluorinated compounds : studies on biodegradation mechanisms and biotreatment systems." Doctoral thesis, 2013. http://hdl.handle.net/10400.14/13429.

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Fluoroorganics are an important class of chemicals compound used in a vast number of applications, including pharmaceutical, agricultural and industrial applications, leading to their disposal and accumulation in the environment. Therefore, it is important to understand and explore the biodegradation mechanisms for their removal. The work described in this thesis aimed to investigate the potential of single bacterial strains for biotransformation of fluoroorganics with different complexity as well as to explore their degradation and fate on biofilm bioreactors. In contaminated environme
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48

Turkman, Nashaat. "Synthesis and study of fluorinated thiophenes, bithiophenes and trithiophenes Models for the polymeric material/." 2008. http://hdl.handle.net/10106/1823.

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49

Dinglasan-Panlilio, Mary Joyce. "Biodegradation of fluorinated telomer compounds as a source of perfluorinated acid formation in the environment." 2008. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=742582&T=F.

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50

Franco, Albina Cristina Ribeiro. "Potential of Ectomycorrhizal Fungi as drivers of plant establishment on soils contaminated with fluorinated organic compounds." Doctoral thesis, 2013. http://hdl.handle.net/10400.14/13914.

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Ectomycorrhizal (ECM) fungi can play an important role on forest ecosystems. It is crucial to understand and explore the capacity of ECM fungi to improve plant development and successful establishment on disturbed soils. The main objective of the work described in this thesis was to explore the potential of ECM fungi found to persist in a disturbed area to tolerate and/or degrade fluorinated organic compounds, and also to assess the tolerance and symbiotic efficiency of ECM fungi - Pine on contaminated soils. The diversity and persistence of ECM fungi in a Pinus pinaster plantation est
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