Relevant bibliographies by topics / Carbon chemistry / Dissertations / Theses
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Dissertations / Theses on the topic 'Carbon chemistry'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Sirokman, Gergely. "(N-heterocyclic-carbene)Copper(I)-catalyzed carbon-carbon bond formation using carbon dioxide." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39584.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2007.<br>Vita.<br>Includes bibliographical references.<br>This thesis presents work towards the development of a new catalytic C-C bond forming reaction. Alkynes and olefins insert into [(IPr)CuH]2 (IPr = N,N-bis-(2,6-diisopropylphenyl)-1,3-imidazol-2-ylidene) to give copper vinyl and copper alkyl complexes. These copper complexes insert CO2 into the Cu-C bond to form copper acrylate and copper carboxylate complexes. Acrylic and carboxylic acids can be isolated by hydrolysis. A catalytic cycle based on (IPr)copper(I) w
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2

Abbott, Jennifer Ileana. "Carbon chemistry of giant impacts." Thesis, Open University, 2000. http://oro.open.ac.uk/19046/.

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Impact diamonds were found in several impactites from the Ries crater, Germany including fallout and fallback (crater fill) suevites. a glass bomb, impact melt rock and shocked gneiss. These diamonds formed two distinct grain size populations: 50-300?m apographitic. platy aggregates with surface ornamentation and etching that were observed using optical and scanning electron microscopy and 5-20?m diamonds which displayed two different morphologies identified using transmission electron microscopy and selected area electron diffraction. These 5-20?m grains comprised apographitic. platy grains w
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3

Abbott, Jennifer Ileana. "Carbon chemistry of giant impacts." n.p, 1999. http://library7.open.ac.uk/abstracts/page.php?thesisid=31.

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4

Sau, Roca Míriam. "From Click Chemistry to catalytic cleavage of unstrained C-C bonds." Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/396080.

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Aquesta tesi doctoral es basa principalment amb la síntesis de molècules petites potencialment útils per investigacions avançades. S'han utilitzat diferents metodologies per obtenir-les: 1) Cicloaddicions intramoleculars entre un alkí i una azida lliures de coure per l'obtenció de derivats de benzodiazepines. Obtenint-se una gran varietat de triazols fusionats a heterocicles de set membres. Posteriorment, s'han dut a terme proves d'activitat biològica. 2) a) Trencament d'enllaços carboni-carboni no activats d'amino alcohols i utilització d'aquest com a nucleòfil juntament amb bromurs d'ari
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5

Ye, Yuxuan Ph D. Massachusetts Institute of Technology. "Development of new transition metal-catalyzed carbon-fluorine, carbon-nitrogen, and carbon-carbon bond forming processes." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118281.

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Thesis: Ph. D. in Organic Chemistry, Massachusetts Institute of Technology, Department of Chemistry, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Chapter 1. Palladium-Catalyzed Fluorination of Cyclic Vinyl Triflates: Dramatic Effect of TESCF₃ as an Additive A method for the synthesis of cyclic vinyl fluorides with high levels of regiochemical fidelity has been achieved by Pd-catalysis employing a new biarylphosphine ligand and TESCF₃ as a crucial additive. Five, six, and seven-membered vinyl triflate substrates, as well as a few acyclic substrates u
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6

Koutsantonis, George Anthony. "Some organotransition metal chemistry of the carbon-carbon triple bond /." Title page, contents and summary only, 1989. http://web4.library.adelaide.edu.au/theses/09PH/09phk876.pdf.

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7

Raymer, Julia. "Carbon-Carbon Bond Formation Via o-Lithiointermediates." TopSCHOLAR®, 2004. http://digitalcommons.wku.edu/theses/512.

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The process of C-C bond formation via Directed ort/zo-Metalation (DoM) consists of two separate steps. Utilizing fractional equivalents of TMEDA in hydrocarbon solvents at 60°C, o-lithiation of anisole and dimethylaniline can be effected in >95% yields. The first step in the DoM process involves preparation of solid samples of these o-lithiointermediates. Completing the sequence, the second step concerns formation of a new arene-derivative bond at the reactive site. For this thesis the arene-derivative bond formed is to carbon. Various carbon electrophiles have been studied using different sol
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8

Billingsley, Kelvin L. "Recent advances in palladium-catalyzed carbon-carbon and carbon-boron bond forming processes." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43777.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2008.<br>Vita.<br>Includes bibliographical references.<br>Chapter 1. Highly active and efficient catalyst systems derived from palladium precatalysts and monophosphine ligands for the Suzuki-Miyaura cross-coupling reaction of heteroaryl boronic acids and esters has been developed. This method allows for the preparation of a wide variety of heterobiaryls in good to excellent yields and displays a high level of activity for the coupling of heteroaryl chlorides as well as hindered aryl and heteroaryl halides. Specific fac
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9

Wheatley, James Ernest. "Fundamental chemistry of carbon dioxide capture." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18363/.

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Carbon dioxide capture is an urgently needed pathway to mitigation of climate change, yet the amine-based solvents currently considered the leading industrial technologies suffer from many shortcomings; namely their high operating cost, poor stability and potentially damaging environmental impact from emission of degradation products. This work is a study of possible routes to improved CO2 capture technologies from a fundamental chemistry perspective. Initial work focused on the development of a straightforward and adaptable protocol for studying the species formed by CO2 capture into amine so
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10

Altman, Ryan A. (Ryan Alan). "Recent advances in copper- and palladium-catalyzed carbon-heteroatom and carbon-carbon bond-formation." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43779.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2008.<br>Vita.<br>Includes bibliographical references.<br>Metal-catalyzed nucleophilic substitution reactions of aryl halides have become one of the most valuable and useful classes of reactions developed in the last 30 years. Foremost among these processes are the classes of palladium- and copper-catalyzed reactions, which employ heteroatom-based nucleophiles. Herein, newly designed catalyst systems are presented for the palladium- and/or copper-catalyzed nucleophilic substitution reactions of aryl halides with a vari
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11

Zhang, Yan. "Carbon Dioxide Capture: Using Activated Carbon From Chicken Waste." TopSCHOLAR®, 2007. http://digitalcommons.wku.edu/theses/390.

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Carbon Dioxide (CO2) emission from hydrocarbon fuel combustion is becoming a serious concern because it is the main contributor to greenhouse gas which causes global warming. Activated carbon sorbents have been used widely in various gas-phase and/or liquid-phase separation. Currently activated carbon (AC) is being investigated and developed for CO2 capture. Chicken waste, which is produced in large quantity in U.S., is currently disposed as waste. However, it may have a large benefit to turn chicken waste into useful activated carbon. In this research, a series of activated carbon have been g
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12

Gates, Bradley Durward. "Novel thermal and electrochemical carbon-carbon bond-forming reactions /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487847761307998.

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13

Rene, Olivier. "Advances in Palladium-Catalyzed Carbon-Carbon Bond Formation Via Functionalization of Carbon-Hydrogen Bonds." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28864.

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In the past decade, significant advances have been made in the formation of Csp2-Csp 2 bonds by direct arylation. However, this process generally requires the use of forcing conditions at temperatures typically above 100 &deg;C, which limits the substrate compatibility as well as large-scale applications. Inspired by the recent advances in the development of milder reaction conditions for the arylation of electon-rich arenes in an aqueous medium, we describe that such reactivity is also possible with electron-deficient polyfluorinated arenes at room temperature under biphasic conditions. Sever
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14

Dombrowski, James Michael. "Catalytic Cleavage of Carbon-Carbon Sigma Bonds Using Transition Metals." Thesis, Boston College, 2005. http://hdl.handle.net/2345/407.

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Thesis advisor: Lawrence T. Scott<br>The focus of this project was to probe the ability of various transition metal complexes to cleave carbon-carbon bonds in a C30H12 hemifullerene. The hemifullerene was synthesized in our lab from commercial 1-tetralone and bromonaphthalene in six steps. Palladium and nickel complexes were used to open the five membered rings along the periphery of the C30H12 bowl. Diphosphine complexes of nickel were capable of opening either all three five membered rings or one of the periphery five membered rings and the central six membered ring<br>Thesis (BS) — Boston C
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15

Ward, Michael A. H. "Studies of the chemistry of carbon nanotubes." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497139.

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16

Luksirikul, Patraporn. "Studies of the chemistry of carbon nanotubes." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558450.

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The work described in this thesis is concerned with the development of fullerenes and single-walled carbon nanotubes (SWNTs) derivatives by novel chemistries for two main objectives: (i) use of fullerenes derivatives and single-walled carbon nanotubes (SWNTs) as a platform for drug delivery; (ii) use of functionalised SWNTs in nanoparticles catalysts for low temperature fuel cells applications. Chapter 1 gives an overview of structure, synthesis, properties and potential applications of carbon nanotubes, Also, reviews on functionalisation and filling of carbon nanotubes are presented. The latt
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17

Hu, Hui. "PURIFICATION, CHEMISTRY AND APPLICATION OF CARBON NANOTUBES." Lexington, Ky. : [University of Kentucky Libraries], 2004. http://lib.uky.edu/ETD/ukychem2004d00156/huihudis.pdf.

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Thesis (M.S.)--University of Kentucky, 2004.<br>Title from document title page (viewed Oct. 12, 2004). Document formatted into pages; contains xv, 263 p. : ill. Includes abstract and vita. Includes bibliographical references (p. 250-258).
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18

Curia, Silvio. "Supercritical carbon dioxide for green polymer chemistry." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/36325/.

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This thesis details novel research on the design of new approaches that might lead to a more sustainable polymer industry by combining the use of supercritical carbon dioxide, a commercially available immobilised enzyme and renewable monomers. First, the key themes explored in this thesis are outlined. Green polymer chemistry, biodegradable and renewable polymers, biocatalysts for polymerisations (i.e. enzymes) and supercritical carbon dioxide as a reaction medium for polymer synthesis and processing are introduced (Chapter 1). Then, the high-pressure equipment and characterisation techniques
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19

Shao, Lidong. "Studies on the chemistry of carbon nanotubes." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.491969.

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This thesis is concerned with four main objectives: the opening and purification of carbon nanotubes and the side-wall functionalization of SWNTs and re-sealing of open.;.ended SWNTs. Chapter I introduces the structure, synthesis and special properties of carbon nanotubes. The latter part of the chapter reviews the present techniques for purification, functionalization (covalent and noncovalent), opening and filling of carbon nanotubes, especially SWNTs. Chapter 2 describes the opening of SWNTs and double-walled carbon nanotubes using molten sodium hydroxide (and other alkali and alkaline-eart
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20

Miller, Karen M. (Karen Marie). "Selective, nickel-catalyzed carbon-carbon bond-forming reactions of alkynes." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32482.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2005.<br>Vita.<br>Includes bibliographical references.<br>Catalytic addition reactions to alkynes are among the most useful and efficient methods for preparing diverse types of substituted olefins. Controlling both regioselectivity and (EIZ)- selectivity in such transformations presents a significant challenge. In reactions that also involve the creation of a new stereocenter, the development of enantioselective processes is highly desirable. Several novel, nickel-catalyzed carbon-carbon bond-forming reactions of alkyn
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21

O'Connor, Ryan. "Rhodium-catalysed allylic substitution with unstabilised carbon nucleophiles : asymmetric construction of carbon-carbon bonds." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/17253/.

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The controlled formation of carbon-carbon bonds is the bedrock of organic chemistry, with the asymmetric construction of stereogenic carbon-carbon bonds remaining a key motivation for the development of novel synthetic methodologies. Transition metal catalysis provides an important strategy in the arsenal of the modern synthetic chemist. While there is a plethora of transition metal-catalysed cross-couplings for the formation of sp2-sp2 and achiral sp2-sp3 carbon bonds, there are relatively few methodologies for the selective formation of stereogenic sp-sp3, sp2-sp3 and sp3-sp3 carbon-carbon b
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22

Nicholls, Julian Charles. "Carbon-carbon bond cleavage in agostic cobalt complexes." Thesis, University of Salford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258557.

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23

Gilbert, M. "Carbon-carbon coupling reactions of organotransition metal complexes." Thesis, University of Bristol, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235314.

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24

Dean, William Michael. "Sulfur(IV)-mediated carbon-carbon bond formation." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/34382/.

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This thesis details the development of methods for and application of the synthesis of carbon carbon bonds using organic sulfur(IV) chemistry. More specifically, the formation of C(sp2) C(sp3) and C(sp3) C(sp3) bonds is explored in detail. The necessity for this research stems from a correlation between a high proportion of sp3 centres in drug candidates, and their success in clinical trials. By facilitating the synthesis of drug candidates with higher fractions of sp3 hybridised carbon atoms, it is hoped that the rate of candidates proceeding through clinical trials may increase. The first to
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25

Duggan, Andrew Charles. "Fullerene intercalation chemistry." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298749.

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26

Bronk, Brian Scott 1967. "New methods for the formation of carbon-carbon bonds via organometallic compounds." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/35441.

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27

Saraf, Sushma L. "Oxidative Carbon-Carbon Bond Cleavage Reactions of Metal Flavonolato and Chlorodiketonate Complexes." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/5161.

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The research presented in this dissertation has focused on studies of metal complexes which undergo oxidative aliphatic carbon-carbon bond cleavage using dioxygen as the oxidant. The goal of this research was to assess the reactivity and elucidate mechanistic details of the carbon-carbon bond cleavage reactions. The first part of this dissertation explores the light-induced dioxygenase reactivity of ruthenium flavonolato compounds. These compounds are of particular interest as they are currently being explored for their anti-cancer activity. The RuII(n6-p-cymene) flavonolato compounds studied
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28

Wirnhier, Eva Antonie. "Solvothermal and Ionothermal Approaches to Carbon Nitride Chemistry." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-157389.

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29

Schreiber, Peter J. "Substitution chemistry of the carbon-boron-hydrogen anion." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3256382.

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30

Jones, Dyfyr Heulyn. "Approaches to quaternary carbon centres using organoboron chemistry." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/50197/.

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The main focus of the work contained within this thesis was to explore the possible use of novel organoboron chemistry in generating quaternary carbon centres, with the ultimate aim of developing new routes for the asymmetric synthesis of chiral quaternary carbon centres. Chapter 1 contains a general introduction to the literature of organoboron chemistry, focusing particularly on organoboron reactions that contain 1, 2 - boron to carbon migrations. Chapters 2 and 3 contain attempts at generating tertiary alkyl groups bonded to boron in an asymmetric fashion. Chapter 2 specifically deals with
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31

Read, Katie Alana. "Volatile organic carbon (VOC) chemistry in remote atmospheres." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414172.

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32

Rosillo-Lopez, Martin. "Preparation, chemistry and applications of novel carbon nanomaterials." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10047526/.

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The isolation of graphene in 2004, and subsequent Nobel Prize for Physics being awarded to Andre Geim and Konstantin Novoselov in 2010, has sparked a renewed interest in graphene around the world due to graphene’s remarkable physical properties such as mechanical stability, optical transparency, impermeability and electrical and thermal conductivity. Graphene Oxide (GO), the oxidised analogue of graphene, has also received much attention owing to its hydrophilic nature. This has made GO a very promising material for aqueous processing, giving it a significant advantage over graphene. In this w
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33

Arroyo, Mar C. "Inorganic Carbon Chemistry In East Antarctic Coastal Polynyas." W&M ScholarWorks, 2020. https://scholarworks.wm.edu/etd/1593091839.

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Polynyas are large areas of open water or reduced sea ice coverage that persistently form in polar environments and often experience enhanced rates of physical, chemical, and biological processes that impact ocean dynamics on local to global scales. Polynyas that form adjacent to the coast, known as coastal polynyas, play an important role in the global carbon cycle by regulating the exchange of CO2 between the ocean and atmosphere in the high latitudes. Because of their importance to the global carbon cycle, there is a particular interest to better characterize CO2 system processes in Antarct
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34

Dong, Boliang. "Formation of Carbon-Carbon and Carbon-Hetero Bonds through Gold Catalysis." Scholar Commons, 2017. https://scholarcommons.usf.edu/etd/7396.

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This dissertation mainly contains two parts: one is C-X (C, O, S) bond formation through gold(I) catalysis, one is new applications via gold(I/III) redox catalysis. In first part, gold(I) catalysts would be introduced and their general applications, then the TA-Au species will be emphasized including the design, synthesis, characters and their application in catalysis. The applications are well developed during the past decade in our group, but here only involves three examples regarding C-C, C-O and C-S bond formations. From these effective applications, the unique stability a
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35

Alasamaq, Suzanne. "Carbon cycle : capture and activation of carbon dioxide using hydrotalcites." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3867/.

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Dry Reforming of methane (DRM) was performed successfully over hydrotalcite catalysts (A) Ni\(^2\)\(^+\)/Mg\(^2\)\(^+\)/Al\(^3\)\(^+\), (B) Ni\(^2\)\(^+\)/Mg\(^2\)\(^+\)/Al\(^3\)\(^+\)/Fe\(^3\)\(^+\), (C) Ni\(^2\)\(^+\)/Co\(^2\)\(^+\)/Al\(^3\)\(^+\) and (D) Ni\(^2\)\(^+\)/Co\(^2\)\(^+\)/Al\(^3\)\(^+\)/Fe\(^3\)\(^+\). The highest conversions for CH\(_4\) and CO\(_2\) were 85% and 75% respectively, achieved at 750°C, CO\(_2\)/CH\(_4\) ratio of 1.50 with a residence time of 2.4 seconds over catalyst B. Activation energy was calculated for the DRM reaction of 81.5 kJ mol\(^-\)\(^1\). A coke format
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36

Tamuang, Suparb. "Mesoporous silica supported catalysts for carbon-carbon bond forming reactions." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3738/.

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The synthesis and characterisation of well-ordered mesoporous silicas, MCM-41, MCM-48, SBA-1, and SBA-2 has been carried out successfully. All of the synthesised materials possess the expected characteristic ordering as confirmed by powder X-ray diffraction. Moreover, surface modification of these mesoporous silicas had also been achieved through the incorporation of alkylamine groups and attachment of an asymmetric organometallic nickel-salen complex. The catalytic activity of the amino and nickel complex-modified mesoporous silica materials was examined for carbon-carbon bond forming reactio
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37

Hawkins, Joel Michael. "Three new C̲₂ symmetric chiral auxiliaries for metal mediated asymmetric reactions : studies in asymmetric carbon-hydrogen, carbon-nitrogen, and carbon-oxygen bond formation." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/15198.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1986.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE<br>Bibliography: leaves 110-116.<br>by Joel Michael Hawkins.<br>Ph.D.
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38

Sawden, Janette. "Applications of rabbit muscle aldolase in stereospecific carbon-carbon bond synthesis." Thesis, University of Exeter, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332357.

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39

Balasubramanian, Narayanaganesh. "Stereoselective Carbon-Carbon Bond Construction Using Indium and Bismuth: New Methods in Green Chemistry." Diss., North Dakota State University, 2012. https://hdl.handle.net/10365/26531.

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Selective chemical reactions that can be accomplished with minimal waste using non-toxic catalysts and reagents will allow for new greener chemical processes for future environmentally sustainable technologies. This work will present an account on enantioselective nucleophilic addition to carbon-nitrogen and carbon-oxygen double bonds mediated by the environmentally benign indium and bismuth metals. The dissertation entitled “ Stereoselective carbon-carbon bond construction using indium and bismuth: new methods in green chemistry” is divided into three chapters Chapter one outlines a few co
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40

Galhotra, Pragati. "Carbon dioxide adsorption on nanomaterials." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/670.

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In this study, CO2 adsorption in the presence and absence of co-adsorbed H2O was investigated on different nanomaterials including nanocrystalline NaY zeolite (nano NaY), ZnO, MgO and λ-Al2O3 nanoparticles as well as mixed phase aluminum nanowhiskers. In the case of nano NaY, FTIR spectra show that a majority of CO2 adsorbs in the pores of these zeolites in a linear complex with the exchangeable cation. Most interesting is the formation of carbonate and bicarbonate on the external surface of nano NaY zeolites, suggesting unique sites for CO2 adsorption on the surface of these small nanomateria
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41

Schroeder, Vera Ph D. Massachusetts Institute of Technology. "Carbon nanotube-based chemical sensing." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122856.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 167-183).<br>In this thesis, we introduce approaches to carbon nanotube-based sensing for applications in environmental monitoring, disease diagnostics, and food analysis: In Chapter 1, we introduce carbon nanotube-based sensing. We describe parameters that give rise to the sensing capabilities of CNT-based sensors and discuss important performance parameters of carbon nanotube sensors. In Chapter 2, we demonstrate voltage-a
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42

Huang, Wenhua. "Electrocatalysis of modified carbon materials /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487850665560626.

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43

Allpress, Caleb J. "Oxidative Aliphatic Carbon-Carbon Bond Cleavage Reactions." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2003.

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The work presented in this dissertation has focused on synthesizing complexes of relevance to dioxygenase enzymes that oxidatively cleave aliphatic carbon-carbon bonds. The goal of this research was to elucidate mechanistic aspects of the activation of aliphatic carbon-carbon bonds towards cleavage by reaction with oxygen, and also investigate the regioselectivity of these reactions. The oxidative cleavage of a variety of enolizable substrates has been explored by utilizing several transition metal complexes supported by an aryl-appended tris(pyridylmethyl)amine ligand. In order to probe the w
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44

Destro, Gianluca. "Chemistry of CO₂ for the synthesis of radio-labelled compounds." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS228.

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Le marquage radioisotopique est un domaine d’intérêt d’un point de vue de la recherche fondamentale en santé et, de par ses nombreuses applications, aussi bien en industrie pharmaceutique et agrochimique que dans le milieu académique. Dans ce contexte, le carbone-14 joue un rôle primordial dans le développement de nouvelles drogues et dans les études ADME et toxicologiques. Les voies de synthèse traditionnelles impliquant le ¹⁴C sont longues et multi-étapes ce qui entrave la viabilité de cette stratégie. L’objectif de cette thèse est de développer de nouvelles techniques de radiomarquage par é
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45

Andersson, Claes-Henrik. "Chemistry of Carbon Nanostructures : Functionalization of Carbon Nanotubes and Synthesis of Organometallic Fullerene Derivatives." Doctoral thesis, Uppsala universitet, Fysikalisk-organisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-159315.

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This thesis is based on two main parts. The first part concerns purification and functionalization of carbon nanotubes (papers I-III), and the second part is related to the synthesis of organometallic fullerene derivatives (papers IV-VII): Two oxidative methods involving aqueous nitric acid were compared with respect to their capability to introduce carboxylic groups into single walled carbon nanotubes, and several literature methods for esterification and amidation of these groups have been evaluated with focus on efficiency and reproducibility in forming covalently functionalized products so
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46

Brown, Stephen L. "Mechanistic organometallic chemistry." Thesis, University of Oxford, 1986. http://ora.ox.ac.uk/objects/uuid:96218480-9b1d-4d53-9d1d-033e2b451818.

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A number of organometallic transformations related to proposed elementary steps in the reductive polymerization of carbon monoxide are discussed. The use of isonitrile as model ligands for carbon monoxide, with which they are isoelectronic, is proposed. Investigations show that alkyl migration to isonitrile is preferred over migration to carbon monoxide. Iminoformyl products due to hydride migration to isonitrile are not, however, observed. Syntheses of a range of cationic complexes of the type [ (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)M(L)<sub>2</sub>(CNR)]<sup>+</sup>, [(η<sup>5</sup>-C<su
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47

Zhu, Qian. "Fundamental aspects of carbon gasification and NO←x release from carbon combustion." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362414.

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48

Turner, John F. C. "Studies in the chemistry of new forms of carbon." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294343.

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49

da, Silva Eirik Falck. "Computational Chemistry Study of Solvents for Carbon Dioxide Absorption." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Natural Sciences and Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-685.

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<p>Absorption with aqueous amine solvents is at present the most viable technology for CO<sub>2 </sub>capture. While this is a proven technology, efforts are ongoing to improve it in order to make it a more attractive technology for large scale use to reduce CO<sub>2</sub> emissions. Finding solvents with better properties is one approach to improving the technology.</p><p>In this thesis methods in computational chemistry are used to improve the understanding of the chemistry of CO<sub>2</sub> absorption in amine-water systems. The work is also intended to provide models that can be used to pr
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50

Leith, M. G. A. "The chemistry and application of activated carbon supported catalysts." Thesis, University of Aberdeen, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.590963.

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In order to correlate the properties of the catalyst to those of the support, activated carbons from various raw materials and activation methods were fully characterised in terms of their physical properties, surface chemistry and elemental composition. Significant differences were identified whereby the porosity of the carbon, and hence the surface area, varied with the raw material used whilst the surface chemistry depended on the method of activation. The interdependence of the carbon properties made it difficult to isolate particular carbon features which were responsible for the catalyti
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