Log in

Relevant bibliographies by topics / Porphyrin compounds / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Porphyrin compounds.

Dissertations / Theses on the topic 'Porphyrin compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Porphyrin compounds.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Cho, Jeongguk. "Porphyrin-catalyzed reduction of nitroaromatic compounds /." Access abstract and link to full text, 1992. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/9307476.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

劉純晶 and Chunjing Liu. "Nonplanar and sterically encumbered ruthenium porphyrins and catalyticreactivity of ruthenium and manganese porphyrin complexes supported onMCM-41." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31237423.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Rajapakse, Nimal. "Oxidations using dioxoruthenium (VI)-porphyrin complexes ; and studies on some organoruthenium-porphyrin species." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30767.

Full text

Abstract:

The oxidation of three alkyl thioethers, phenol and 2-propanol by trans-dioxo ruthenium porphyrin species, and the synthesis, characterization and reactivity of several new ruthenium porphyrin complexes are described in this thesis. The trans-dioxo species Ru(Porp)(O)₂ [Porp= the dianions of 5,10,15,20-tetramesitylporphyrin (TMP) and 5,10,15,20-(2,6-dichlorophenyl)porphyrin (OCP)] selectively oxidize diethyl-, di-n-butyl- and decylmethyl- sulfides to the corresponding sulfoxides at room temperature. The reaction is first order in [Ru] and in [thioether]. The second order rate constants for th

APA, Harvard, Vancouver, ISO, and other styles

4

Liu, Chunjing. "Nonplanar and sterically encumbered ruthenium porphyrins and catalytic reactivity of ruthenium and manganese porphyrin complexes supported on MCM-41 /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19737518.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

梁嘉茵 and Ka-yan Sarana Leung. "Complexes of iminato, nitrido, imido, and hydrazido ruthenium of osmium porphyrins." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31243307.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Sek, Sau Yin. "The synthesis of haematoporphyrin derivative III and other novel porphyrins /." Title page, table of contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09PH/09phs4622.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Rui, and 張瑞. "Asymmetric organic oxidation by chiral ruthenium complexes containing D2 and D4 symmetric porphyrinato ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B42576246.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Sishta, Chand. "The coordination chemistry of ruthenium porphyrin complexes." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30790.

Full text

Abstract:

This thesis work reports developments in the coordination chemistry of ruthenium porphyrin complexes, both in terms of the synthesis and chemistry of new compounds, as well as the study of the solution chemistry of some previously reported complexes. The synthesis, characterization and chemistry of ten new Ru(porp) coordination complexes in the oxidation states Ru[superscript]Ⅲ and Ru[superscript]Ⅳ containing halide (Br, CI) and other axial ligands (pyridine, CH₃CN, NH₃ and SbF₆) are described in this thesis. Some additional ten Ru(porp) complexes have been studied in situ. Measurement of the

APA, Harvard, Vancouver, ISO, and other styles

9

Pan, Jie. "Organometallic porphyrin based complexes for photophysical and biological application." HKBU Institutional Repository, 2016. https://repository.hkbu.edu.hk/etd_oa/331.

Full text

Abstract:

This thesis focuses on the development of porphyrin-based complexes as multi-modal bio-imaging probes. Detailed studies of photophysical and biological properties were included.;In chapter 1, the general background of porphyrin and its derivatives, their structure specialty, synthetic methods, photophysical properties, and applications in biological system were described.;Curcumin-bridged porphyrin-copper complex (Por-Cu-Cur) which can permeate through the high blood-brain barrier, accumulate fast in brain tissues, and emit brilliant and stable two photon excited emission has been developed. A

APA, Harvard, Vancouver, ISO, and other styles

10

Umetani, Masataka. "Development of Novel π-Conjugated Compounds Based on Tripyrrin". Kyoto University, 2020. http://hdl.handle.net/2433/253105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Annapureddy, Raja Sekarreddy. "Ruthenium porphyrin catalyzed carbene mediated C-H insertion and cycloaddition reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/206316.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Wang, Mingzhong, and 汪明中. "Selective alkylation of indoles catalyzed by gold (I) phosphine complexes and ruthenium (II) porphyrin complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45699501.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Kwong, Wai-lun, and 鄺偉倫. "Anti-cancer ytterbium porphyrin and iron polypyridyl complexes: synthesis, cytotoxicity and bioinformaticsstudies." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48521711.

Full text

Abstract:

Discovery of anti-cancer cisplatin was a great success in anti-cancer chemotherapy. Numerous analogues of cisplatin such as carboplatin and oxaliplatin, were developed to improve the clinical effectiveness. Nevertheless, the clinical uses of these platinum-based drugs are limited by the occurrence of drug-resistance, narrow range of susceptible cancer types and severe toxicity. These drawbacks have stimulated the development of other metal-based compounds with distinct mechanisms of anti-cancer action. In this study, a series of ytterbium(III) porphyrin and iron(II) polypyridyl complexes were

APA, Harvard, Vancouver, ISO, and other styles

14

高寶鴻 and Po-hung Ko. "Syntheses, structures and reactivities of some ruthenium, manganese and osmium complexes of non-porphyrin chelating multi-anionic ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31235906.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Ko, Po-hung. "Syntheses, structures and reactivities of some ruthenium, manganese and osmium complexes of non-porphyrin chelating multi-anionic ligands /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18611862.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Li, Ka-lei Carrie. "In vitro and in vivo studies of cytotoxic and anti-angiogenic cyclometalated gold(III) and gold(III) porphyrin complexes." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B39634577.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Li, Ka-lei Carrie, and 李嘉莉. "In vitro and in vivo studies of cytotoxic and anti-angiogenic cyclometalated gold(III) and gold(III) porphyrin complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B39634577.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Xiao, Wenbo, and 萧文博. "Ruthenium porphyrin catalyzed nitrene insertion into C-H bonds of aromatic heterocycles, aldehydes and alkanes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B50434317.

Full text

Abstract:

Transition metal catalyzed selective nitrene insertion into C-H bonds, which allows direct incorporation of nitrogen functionality into hydrocarbons, represents an appealing methodology for C-N bond formation, a type of bond formation of great importance in organic synthesis due to the prevalence of amino groups in biologically active natural products and pharmaceuticals. Organic azides are atom-economic and an environment-benign nitrene source. This dissertation reports the use of organic azides as a nitrene source to develop a series of protocols for C-H bond functionalization by metal-cata

APA, Harvard, Vancouver, ISO, and other styles

19

黎達成 and Tat-shing Lai. "Oxo and Imido transfer reactions mediated by ruthenium and manganese complexes containing chiral porphyrin and oxazolinyl ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31237186.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Lai, Tat-shing. "Oxo and Imido transfer reactions mediated by ruthenium and manganese complexes containing chiral porphyrin and oxazolinyl ligands /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19738006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Huang, Yan. "Synthesis, Kinetic and Photocatalytic Studies of Porphyrin-Ruthenium-Oxo Complexes." TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/182.

Full text

Abstract:

Macrocyclic ligand-complexed transition metal-oxo intermediates are the active oxidizing species in a variety of important biological and catalytic oxidation reactions. Many transition metal catalysts have been designed to mimic the predominant oxidation catalysts in Nature, namely the cytochrome P450 enzymes. Ruthenium porphyrin complexes have been the center of the research and have successfully been utilized, as catalysts, in major oxidation reactions such as the hydroxylation of alkanes. This study focuses on kinetic and photocatalytic studies of oxidation reactions with wellcharacterized

APA, Harvard, Vancouver, ISO, and other styles

22

Thu, Hung-yat. "Catalytic C-H bond functionalization reactions catalyzed by rhodium(III) porphyrin, palladium(II) and platinum(II) acetate complexes." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B38027872.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Chan, Ka-ho, and 陳嘉豪. "Ruthenium-N-heterocyclic carbene and ruthenium acetylide complexes supported by macrocyclic porphyrin or tetradentate schiff base ligands : synthesis, structure and catalytic applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2015. http://hdl.handle.net/10722/211130.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Thu, Hung-yat, and 杜鴻溢. "Catalytic C-H bond functionalization reactions catalyzed by rhodium(III) porphyrin, palladium(II) and platinum(II) acetatecomplexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B38798268.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Iglesias, Bernardo Almeida. "Síntese e propriedades espectroscópicas e eletroquímicas de uma triazeno-porfirina." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-05092012-100130/.

Full text

Abstract:

Nesta tese foi desenvolvida uma nova classe de porfirinas supramoleculares contendo um grupo (4-nitrofenil)triazeno ligado na posição meso-aril do anel porfirínico. Suas propriedades estruturais e eletrônicas foram investigadas por espectrometria de massas, espectroscopia eletrônica de absorção e emissão, cálculos teóricos semi-empíricos, ressonância magnética nuclear de 1H e 13C, voltametria cíclica e espectroeletroquímica. Efeitos eletrônicos e estruturais diferenciados foram observados quando o grupo triazeno é inserido na porfirina, fazendo com que estes novos compostos apresentem novas pr

APA, Harvard, Vancouver, ISO, and other styles

26

Yao, Soledad G. "OXIDATION OF β-O-4 LIGNIN MODEL COMPOUNDS AND APPLICATION TO LIGNIN LINKAGE DEGRADATION FACILITATED BY MECHANOCHEMICAL TREATMENT AND TWO-STEP OXIDATIVE DEPOLYMERIZATION". UKnowledge, 2018. https://uknowledge.uky.edu/chemistry_etds/91.

Full text

Abstract:

The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents ‒ as indicated by lower conversion in a standard reaction time ‒ likely due, at least in part, to the higher viscosity of ionic liquids. Mechano chemical treatment of Indulin AT kraft lignin by ball milling with KOH and toluene prod

APA, Harvard, Vancouver, ISO, and other styles

27

Balzer, Rosana. "Estudo físico-químico e biológico dos compostos [H2(TDFSPP)] e [Zn(TDFSPP)] visando aplicação em terapia fotodinâmica (TFD)." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2010. http://tede2.uepg.br/jspui/handle/prefix/2087.

Full text

Abstract:

Made available in DSpace on 2017-07-24T19:38:04Z (GMT). No. of bitstreams: 1 Rosana Balzer.pdf: 2986584 bytes, checksum: 00f13f9fc467f7bdab7c9138e783c610 (MD5) Previous issue date: 2010-08-02<br>Fundação Araucária de Apoio ao Desenvolvimento Científico e Tecnológico do Paraná<br>The properties of compounds 5, 10, 15, 20-tetrakis (2,6 difluor-5-sulfonatophenyl) sodium porphyrin, Na4[H2(TDFSPP)], and 5, 10, 15, 20-tetrakis (2,6 difluor-5-sulfonatophenyl) sodium porphyrinate zinc (II), Na4[Zn(TDFSPP)], were investigated with the objective of using them as photosensitizers in Photodynamic Therap

APA, Harvard, Vancouver, ISO, and other styles

28

Liegel, Rodrigo Marchiori. "Aspectos da sensibilização em terapia fotodinâmica: avaliação das propriedades fotofísicas de metaloporfirinas catiônicas em meio homogêneo e micro-heterogêneo." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/46/46134/tde-30082018-112953/.

Full text

Abstract:

Uma nova série de porfirinas catiônicas e seus respectivos metalocomplexos de Zn(II) e Cu(II) foi sintetizada. Esta nova série apresenta resíduos benzílicos substituídos ligados aos grupos piridínicos presentes nas posições meso do anel porfirínico. Estes compostos foram caracterizados e investigados utilizando várias técnicas, tais como: espectroscopia eletrônica de absorção e de emissão, RMN-1H, espectroscopia vibracional IR e raman ressonante, voltametria cíclica, espectroeletroquímica e fotólise por pulso de laser. Não foram observadas evidências de auto-agregação destes compostos em água,

APA, Harvard, Vancouver, ISO, and other styles

29

Delmarre, David. "Incorporation de porphyrines dans les matrices sol-gel : études spectroscopiques et application à la détection de polluants." Cachan, Ecole normale supérieure, 1998. http://www.theses.fr/1998DENS0024.

Full text

Abstract:

Le but de ce travail de thèse était de réaliser des capteurs de molécules polluantes à l'aide de porphyrines incorporées dans des matrices sol-gel. La première partie de ce travail a été consacrée a l'étude des interactions entre molécules sondes et environnement local en solution et en milieu sol-gel. Ceci a été réalisé à l'aide de porphyrines d'étain qui se sont révélés sensibles aux effets de solvant et au ph. Puis dans un second temps a l'aide de porphyrines non-métallées a cause de leur sensibilité aux variations de ph qui ont permis de calculer le ph à l'intérieur des matrices sol-gel. U

APA, Harvard, Vancouver, ISO, and other styles

30

Li, Yan, and 李艷. "Synthesis and reactivity of carbene complexes of iron, ruthenium and osmium porphyrins." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31245730.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Au, Sze-man Vanessa. "Synthesis, characterization and reactivities of bis(imido)-ruthenium(vi) and -osmium(vi) porphyrins /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021478.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Tavares, Anabela Cristóvão. "Photoinactivation of bioluminescent bacteria by porphyrinic compounds." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/4512.

Full text

Abstract:

Mestrado em Biologia Molecular e Celular<br>A terapia fotodinâmica antimicrobiana representa uma alternativa promissora para inactivar eficientemente microrganismos patogénicos como bactérias, vírus, fungos e protozoários. Esta terapia baseia-se na utilização de um fotossensibilizador, que quando é activado por luz, gera espécies citotóxicas que destroem as células-alvo. A inactivação fotodinâmica das células microbianas pode ocorrer através de dois mecanismos oxidativos: a via do tipo I que envolve reacções de transferência de electrões/átomos de hidrogénio do fotossensibilizador com produção

APA, Harvard, Vancouver, ISO, and other styles

33

區詩敏{272b21} and Sze-man Vanessa Au. "Synthesis, characterization and reactivities of bis(imido)-ruthenium(vi) and -osmium(vi) porphyrins." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31238117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Rice, M. J. "Synthetic models of cytochrome P450 and photosynthesis." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233252.

Full text

Abstract:

The work presented in this dissertation describes the prepartion and characterisation of various strapped porphyrin compounds which are designed to model cytochrome P450 and the charge separation in photosynthesis. The major part of this work is concerned with models of cytochrome P450. After a brief introduction to the philosophy of modelling, there follows a review of work on the enzyme and various compounds which are designed to reproduce the enzymic characteristics. The synthesis of two singly bridged porphyrins is reported. These incorporate a pendent methyl ester in the centre of the str

APA, Harvard, Vancouver, ISO, and other styles

35

Zhou, Congying. "Ruthenium porphyrins and dirhodium (II, II) carboxylates catalyzed ylide-mediated cycloadditions and carbenoid transfer reactions." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/hkuto/record/B31046484.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Zhou, Congying, and 周聰穎. "Ruthenium porphyrins and dirhodium (II, II) carboxylates catalyzed ylide-mediated cycloadditions and carbenoid transfer reactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31046484.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Cromer, Rémy. "Porphyrines n-substituees : modelisation de l'inhibition d'hemoproteines." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13015.

Full text

Abstract:

Migration cobalt-azote des groupements : phenyl et styryl. L'etude des reactions de migration dans les porphyrines de cobalt(iii) aryliques a justifie l'utilisation de ces dernieres pour modeliser l'hydrazinolyse des hemoproteines. Les porphyrines de cobalt(iii) aryliques ont un comportement analogue a celui des porphyrines de fer(iii) aryliques. Oxydation des styryl -co(iii) porphyrines. Mecanisme de reaction. Extension de cette reaction a la cyclisation en serie arylique qui permet la synthese de la premiere porphyrine n,n'-(phenylene-1,2) analogue du produit d'inhibition suicide obtenu apre

APA, Harvard, Vancouver, ISO, and other styles

38

Hatcher, Jancie Stinecipher. "Synthesis, characterization, and monolayer formation of sulfur-substituted tetraphenylporphyrins." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/29977.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Leung, Ka-yan Sarana. "Complexes of iminato, nitrido, imido, and hydrazido ruthenium of osmium porphyrins /." Hong Kong : University of Hong Kong, 2002. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25212072.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Zhang, Rui. "Asymmetric organic oxidation by chiral ruthenium complexes containing D2 and D4 symmetric porphyrinato ligands." Click to view the E-thesis via HKUTO, 2000. http://sunzi.lib.hku.hk/hkuto/record/B42576246.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Miyahara, Tomoo. "Theoretical studies on the photochemistry of porphyrins and biologically important compounds." 京都大学 (Kyoto University), 2003. http://hdl.handle.net/2433/148879.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Sun, Wai-yin Raymond, and 辛偉賢. "The antitumor and antiviral properties of gold (III) porphyrins and their related complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31245973.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Boukhris, Abdallah. "Étude par diffraction des rayons X des porphyrines de gallium, germanium et indium, synthons potentiels de conducteurs électriques unidimensionnels." Nancy 1, 1986. http://www.theses.fr/1986NAN10038.

Full text

Abstract:

Étude des composés GA(OEP)(SO::(3)CH::(3)), GA(OEP)N::(3), GE(TPMEPP)(N::(3))::(2), GE(OEP)F::(2) et (OEP) IN-MN(CO)::(5). Caractérisation des groupements azido dans les porphyrines de gallium et de germanium. Première liaison simple métat-métal dans la série des métalloporphyrines. Dopage de fluoro-octaethylporphyrines de gallium et d'octaméthylporphyrines de nickel par l'iode moléculaire. Incommensurabilité des réseaux iode et porphyrine, caractère polymérique des métalloporphyrines. Étude de la conductivité électrique

APA, Harvard, Vancouver, ISO, and other styles

44

Carver, Aaron Dalnamath. "Selective Oxidations by Iron(III) Porphyrins and Iron(III) Corroles." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1395.

Full text

Abstract:

The selective oxidation of organic compounds represents a leading technology for chemical industries. They are used in chemical synthesis in the pharmaceutical and petrochemicals industries, and possible the decontamination of harmful substances. However, oxidations reaction are among the most challenging processes to control. Many stoichiometric oxidants with heavy metals are expensive, or toxic maybe both, and therefore unfeasible to be utilized. The ideal processes for catalytic oxidation would use molecular oxygen or hydrogen peroxide as the primary oxygen source, with transition metal cat

APA, Harvard, Vancouver, ISO, and other styles

45

Renko, Zafiarisoa Dolor. "Synthèse totale de porphyrines protégées sur leurs deux faces (Porphyrines "Gyroscopes")." Paris 6, 1986. http://www.theses.fr/1986PA066274.

Full text

Abstract:

La synthèse d'une nouvelle génération de porphyrines protégées sur leurs deux faces a été réalisée. Il s'agit d'un dérivé d'une octamethylporphyrine substituée en ses positions méso alpha et gamma par deux groupes phényles eux-mêmes fonctionnalises en position ortho et ortho par des anses peptidiques d'acides aminés optiquement actifs. L'une des anses comporte une pyridine. La synthèse totale de cette porphyrine a été effectuée en vue d'obtenir de nouveaux modèles d'hémoprotéines et de nouveaux catalyseurs d'époxydation asymétrique.

APA, Harvard, Vancouver, ISO, and other styles

46

Azevedo, Vítor Manuel Madureira. "Lipidomic study of the red marine macroalgae as source of bioactive compounds." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17513.

Full text

Abstract:

Mestrado em Mestre em Bioquímica, ramo da Bioquímica Clínica<br>Marine macroalgae, or seaweeds, have gained an increased interest in recent times for the use in various biotechnological applications, due to the added-value of their chemical constituents. Among them, glycolipids and phospholipids display several commercial applications in a wide spectrum of industries, such as food, pharmaceutical and cosmetic. In an effort to further understand the lipid composition of macroalgae, the present work reports, for the first time, the isolation and characterization of the polar lipid profile of the

APA, Harvard, Vancouver, ISO, and other styles

47

Belair, Jeffery P. "The Photophysical Characterization of N-Confused Tetraphenylporphyrin and the Characterization of Zinc N-Confused Tetraphenylporphyrin." University of Akron / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=akron1133950418.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Öztek, Muzaffer Tonguç. "The study of three different layered structures as model systems for hydrogen storage materials." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5001.

Full text

Abstract:

The strength and success of the hydrogen economy relies heavily on the storage of hydrogen. Storage systems in which hydrogen is sequestered in a solid material have been shown to be advantageous over storage of hydrogen as a liquid or compressed gas. Many different types of materials have been investigated, yet the desired capacity and uptake/release characteristics required for implementation have not been reached. In this work, porphyrin aggregates were investigated as a new type of material for hydrogen storage. The building blocks of the aggregates are porphyrin molecules that are planar

APA, Harvard, Vancouver, ISO, and other styles

49

Lesieur, Pierre. "Etude de l'orientation moléculaire dans les films de Langmuir-Blodgett." Paris 6, 1986. http://www.theses.fr/1986PA066290.

Full text

Abstract:

Ce travail constitue une caractérisation des films de Langmuir-Blodgett par résonance paramagnétique électrique et par diffusion Raman résonante en lumière polarisée. Les films sont constitués de multicouches, mixtes ou alternées, de porphyrines amphiphiles et d'acide docosanoïque. Le sujet porte sur l'orientation des macrocycles porphyriniques par rapport au substrat supportant les couches

APA, Harvard, Vancouver, ISO, and other styles

50

Veyrat, Marc. "Synthèse de porphyrines et métalloporphyrines chirales dérivées d'aldéhydes alicycliques : application à la catalyse d'époxydation asymétrique d'alcènes." Université Joseph Fourier (Grenoble ; 1971-2015), 1994. http://www.theses.fr/1994GRE10191.

Full text

Abstract:

De nombreux prototypes de porphyrines comportant des superstructures chirales elaborees ont ete synthetises au cours de la derniere decennie, en vue de l'utilisation de leurs complexes metalliques comme catalyseurs d'epoxydation asymetrique des alcenes. L'utilite de ces composes est en general limitee, du fait de leur synthese laborieuse et des etapes de separation d'isomeres qu'elle comporte. L'approche originale decrite dans cette these fournit des catalyseurs asymetriques de structure plus simple, d'obtention plus facile, et donc potentiellement plus utiles. Une etude preliminaire, centree

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!