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Dissertations / Theses on the topic 'Polypyridyl'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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1

Zheng, Sipeng. "The reactions of ruthenium (ii) polypyridyl complexes." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/1089.

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Ruthenium (II) polypyridine complexes in general have been extensively studied because of their unique redox and photochemical properties. A typical example of such complexes is tris(2,2’-bipyridyl) ruthenium (II). In this study, this complex was synthesized and then characterized using electronic spectroscopy and cyclic voltammetry. It was also shown that the ruthenium concentration could be accurately determined using ICP-MS. It was found that the complex is very stable in various chemical environments. It was observed from spectrophotometric investigations that persulphate and lead dioxide

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2

Williams, R. Lee. "Ruthenium-Platinum Polypyridyl Complexes: Synthesis and Characterization." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/44315.

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A series of bimetallic (RuII, PtII) complexes were synthesized with the general formula [(tpy)RuCl(BL)PtCl2](PF6) (tpy = 2,2':6',2"-terpyridine and BL = bridging ligand) and their spectroscopic, electrochemical, and DNA binding properties studied. The bridging ligands used in these complexes were 2,3-bis(2'-pyridyl)pyrazine (dpp), 2,3-bis(2'-pyridyl)quinoxaline (dpq) and 2,3-bis(2'-pyridyl)benzoquinoxaline (dpb). These complexes combine light-absorbing RuII-polypyridyl chromophores and a cis-PtCl2 structural motif known to bind DNA. The Ru-bound chloride may be substituted, enabling furthe

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3

Johansson, Olof. "Ruthenium(II) Polypyridyl Complexes : Applications in Artificial Photosynthesis." Doctoral thesis, Stockholm : Institutionen för organisk kemi, Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-93.

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4

Jones, Lucy. "Two-photon applications of transition metal polypyridyl complexes." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/twophoton-applications-of-transition-metal-polypyridyl-complexes(a236f479-d27c-4a92-8b13-bfac51bb14d7).html.

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Materials that undergo two-photon absorbtion (2PA), the simultaneous absorption of two photons, are finding increasing use in many applications including 3D fluorescence microscopy, 3D data storage, and photodynamic therapy (PDT). For efficient use, a large two-photon cross-section is desired which can arise from centrosymmetric charge transfer in push-pull electron donor-acceptor (D-A) diads. These structural motifs have been applied to the construction of organic-based chromophores yielding materials with remarkably high two-photon absorption cross-sections, yet, few metal based examples hav

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5

Smith, Nichola Ann. "Photoactivatable Ru(II) polypyridyl complexes as antibacterial agents." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/76173/.

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Novel photoactive ruthenium(II) complexes were designed to incorporate existing anti-tuberculosis drugs, isoniazid and nicotinamide, that could be released from the ruthenium(II) cage by photoactivation with visible light. Two sets of complexes were synthesised based on cis-[Ru(N-N')2(L)2][PF6]2and cis-[Ru(N-N')2(L)X][PF6], where N-N' is 2,2'-bipyridine (bpy) or 1,10-phenanthroline (phen), L is isoniazid (INH) or nicotinamide (NA) and X is either Cl or I. Their dynamic behaviour in solution was explored using NMR to probe the presence of atropisomers. In the case of cis-[Ru(bpy)2(NA)Cl][PF6] (

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6

Greguric, Antun, University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "The DNA binding interactions of Ru(II) polypyridyl complexes." THESIS_CSTE_SFH_Greguric_A.xml, 2002. http://handle.uws.edu.au:8081/1959.7/620.

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This thesis reports on the synthesis, characterisation, enantiomeric resolution, 1H NMR structural study and physical evaluation of a series of certain bidentate ligand metal complexes, where ‘L-L’ denotes the ancillary bidentate ligand and ‘intercalator’ indicates the intercalating bidentate ligand. The L-L series varies in size and shape. Results of many tests and projects conducted are explained in detail.<br>Master of Science (Hons)

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7

McDonnell, Ursula J. "Synthesis and DNA Binding of Novel Ruthenium Polypyridyl Complexes." Thesis, University of Warwick, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526217.

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8

Yang, Mei. "Iron(II) and ruthenium(II) polypyridyl complexes as photosensitizers." Available to US Hopkins community, 2003. http://wwwlib.umi.com/dissertations/dlnow/3080801.

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9

Greguric, Antun. "The DNA binding interactions of Ru(II) polypyridyl complexes." Thesis, View thesis View thesis, 2002. http://handle.uws.edu.au:8081/1959.7/620.

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This thesis reports on the synthesis, characterisation, enantiomeric resolution, 1H NMR structural study and physical evaluation of a series of certain bidentate ligand metal complexes, where ‘L-L’ denotes the ancillary bidentate ligand and ‘intercalator’ indicates the intercalating bidentate ligand. The L-L series varies in size and shape. Results of many tests and projects conducted are explained in detail.

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10

Greguric, Antun. "The DNA binding interactions of Ru(II) polypyridyl complexes /." View thesis View thesis, 2002. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030410.094714/index.html.

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Thesis (M. Sc.) (Hons.) -- University of Western Sydney, 2002.<br>A thesis presented to the University of Western Sydney in partial fulfilment of the rquirements for the degree of Master of Science (Honours), February, 2002. Includes bibliographical references.

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11

Hall, James Pearce. "X-ray crystallographic studies of DNA-bound polypyridyl ruthenium complexes." Thesis, University of Reading, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.658875.

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12

Barker, Nathaniel M. "The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627665370500068.

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13

Planas, Roure Nora. "Ruthenium polypyridyl complexes relevant to the catalytic processes in artificial photosynthesis." Doctoral thesis, Universitat Rovira i Virgili, 2011. http://hdl.handle.net/10803/33515.

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Una de les estratègies en el campde la fotosíntesis artificial consisteix en un sistema modular en que els diferents components indispensables d’un un aparell funcional són estudiats de manera independent per al seu futur acoblament. Aquesta tesi s’ha centraten la sintesis i caracterització d’una sèrie de nous compostos mono- i dinuclears de ruteni amb lligands de tipus polipiridil. S’ha estudiat l’aplicabilitat d’aquests nous compostos com a catalitzadors en processos tant importants com son l’oxidació d’ aigua a oxigen molecular i la reduccio de diòxid de carboni a àcid fòrmic. També, s’han

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14

Howell, Sarah Louise, and n/a. "Excited state structures of polypyridyl complexes : a spectroscopic and DFT study." University of Otago. Department of Chemistry, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070221.155843.

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This thesis reports the spectroscopic and computational studies of a number of Cu(I), Re(I) and Ru(II) complexes of polypyridyl ligands. The ligands considered in this study were 1,10-phenanthroline, 4,7-diphenyl-1,10-phenanthroline, 3,4,7,8-tetramethyl-1,10-phenanthroline, dibenzo[b,j][1,10]phenanthroline, dipyrido[2,3-a:3�,2�-c]phenazine, dipyrido[2,3-a:3�,2�-c]-6,7-dichlorophenazine and dipyrido[2,3-a:3�,2�-c]-6,7-dimethylphenazine. Density functional theory calculations were carried out on the polypyridyl ligands. Validation of the calculations was carried out by comparison of the predic

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15

Abrahamsson, Maria. "Tuning of the Excited State Properties of Ruthenium(II)-Polypyridyl Complexes." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7230.

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16

Wolpher, Henriette. "Ruthenium(II) polypyridyl complexes in supramolecular systems relevant to artificial photosynthesis /." Stockholm : Department of Organic Chemistry, Ahrrenius Laboratory, Stockholm University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-417.

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17

Bushell, Karen Lynne. "The coordination chemistry of polypyridyl ligands with secondary macrocyclic binding sites." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301986.

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18

Willis, Kimberlee Susan. "Developing benzothiazole functionalised ruthenium(II) polypyridyl complexes as tuneable DNA binders." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675442.

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The aim of this research is to develop a range of new ruthenium(II) polypyridyl complexes to be analysed spectroscopically in the presence of calf thymus-DNA to determine their relative binding affinities to the polynucleotide, thus determining the best criteria for a detection tool for DNA. Reactions of selected functional groups on one ligand of ruthenium(II) precursor complexes lead to the synthesis of six benzothiazole containing complexes; [Ru(bpY)2(B16)]2+,, [Ru(bpy)2(P5)]2+, [Ru(phen)2(B16)]2+, [Ru (phenh(P5)]2+, [Ru(Me2bpY)2(B16)]2+ and [Ru(Me2bpy)2(P5)]2+ and four "control" complexes;

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19

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.

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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

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20

Zhang, Wanji. "Dye-Sensitized Tio2 Modified with Iron Polypyridyl Catalyst for Photocatalytic Hydrogen Evolution." W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1477068478.

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Artificial Photosynthesis (AP) focuses on finding a way to harness solar energy to generate a chemical fuel. TiO2 semiconductors are of interest to AP research due to its relatively low cost and widespread use as an efficient charge-separating support. This research focuses on the development of a device for photocatalytic hydrogen generation. Our approach utilizes the immobilization of iron polypyridyl catalysts and ruthenium chromophores on TiO2 through stable phosphonic acid anchoring groups.

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21

Polapally, Mamatha. "Synthesis,Structure and Properties of Ruthenium Polypyridyl Metalloligand Based Metal-Organic Frameworks." TopSCHOLAR®, 2017. https://digitalcommons.wku.edu/theses/2035.

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Metal-organic frameworks (MOFs) have been extensively studied because of their amazing applications in gas storage, purification, photocatalysis, chemical sensing, and imaging techniques. Ruthenium polypyridyl complexes have been broadly considered as photosensitizers for the conversion of solar energy and photoelectronic materials. With this aspect, we have synthesized three new ruthenium polypyridyl based MOFs ([Ru(H2bpc)Cu(bpc)(Hbpc)2(H2O)]·5H2O (1), [Ru(H2bpc)(Fe(bpc)(Hbpc)2(H2O)2]·6H2O (2) and [Ru(H2bpc)Ni(bpc)(Hbpc)2(H2O)2]·6H2O (3)) from ruthenium(III) chloride, bpc (2,2’- bipyridine-4,

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22

Borg, Anders. "Theoretical Photochemistry : Halogenated Arenes, Phytochromobilin, Ru(II)polypyridyl complexes and 6-4 photoadducts." Doctoral thesis, Uppsala universitet, Kvantkemi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8469.

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This thesis presents Quantum Chemical calculations on the Photochemistry of Halogenated benzenes, Phytochromobilin, Ruthenium Polypyridyl complexes and 6-4 photoadducts in DNA. The work is focused on improving the understanding of a number of experimentally observed photochemical processes in these systems. New results regarding the mechanism of photodissociation of halogenated arenes, photointerconversion of phytochromobilin are presented, as well as of the photoprocesses of Ruthenium Polypyridyl complexes and new mechanistic insights in the repair of 6-4 photoadducts in DNA.

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23

Ll, Yanfen. "Synthesis, Structure, and Characterization of Hybrid Solids Containing Polyoxometalates and Ruthenium Polypyridyl Complexes." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1163.

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Polyoxometalates (POMs), which are inorganic metal oxide cluster anions with discrete structures, have been extensively studied in recent years due to their large variety of applications such as medicine, biology, catalysis, material sciences and chemical analysis. Ruthenium polypyridyl complexes have been extensively studied for their applications as photosensitizers in solar energy conversion and photoelectronic materials. Recently, ruthenium heterocyclic ligand complex-based building blocks have been used for the synthesis of hybrid organic-inorganic solids through the self-assembly. We are

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24

White, Claire Michelle. "Ruthenium polypyridyl complexes designed for the non-covalent self-assembly of supramolecular systems." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265497.

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25

Prusakova, Valentina. "The Design, Syntheses, and Photophysics of Novel Pt(II) Polypyridyl Arylacetylides and Arylthiolates." Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1354731350.

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26

Sun, Yujie. "Ru(II) and Os(II) Polypyridyl Complexes as Luminescence Sensors and PDT Agents." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1279227020.

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27

Wang, Lei. "Ultrafast Excited State Investigation of Ruthenium and Osmium Polypyridyl SulfoxideComplexes and BOPHY Dyes." Ohio University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1433864223.

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28

Loftus, Lauren Marie. "Tuning the Excited States and Reactivity of Polypyridyl Ru(II) Complexes for Photochemotherapy." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu156579728991504.

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29

Race, Nicholas. "Iron Polypyridyl Catalysts Assembled on Metal Oxide Semiconductors for Heterogeneous Photocatalytic Hydrogen Generation." W&M ScholarWorks, 2018. https://scholarworks.wm.edu/etd/1530192812.

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Artificial Photosynthesis (AP) provides a promising method for the conversion of solar energy to chemical fuel in the form of H2 and O2. Development of heterogeneous systems in which H2 evolution catalysts are immobilized on metal oxide semiconductors is imperative for the large-scale implementation of AP systems. This research focuses on the immobilization of an active H2 evolution catalyst on large band gap semiconductors for the development and optimization of a highly active photocatalytic H2 generation system.

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30

Walsh, Penelope Jane, and n/a. "Modelling and spectroscopy of polypyridyl and porphyrin complexes for electroluminescence and solar cell applications." University of Otago. Department of Chemistry, 2007. http://adt.otago.ac.nz./public/adt-NZDU20070927.151236.

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This thesis reports the spectroscopic and computational studies of two classes of compounds, which have applications in new optoelectronic materials technology. Substituted ligands of dipyrido-[3,2a:2�,3�c]phenazine (dppz), and their Cu(I), Re(I) and Ru(II) complexes have utility in organic electroluminescent devices. A series of Zn(II) tetraphenylporphyrins with conjugated functional groups at the β-position have been used with success in liquid heterojunction dye-sensitized solar cells. The vibrational spectra and optoelectronic properties of the two classes were investigated using Raman, re

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31

Steen, Robert. "The Synthesis of Molecular Switches Based Upon Ru(II) Polypyridyl Architecture for Electronic Applications." Licentiate thesis, Västerås : Department of Biology and Chemical Engineering, Mälardalen University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-356.

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32

Lazarides, Theodore. "Luminescent d-block metal polypyridyl complexes bearing secondary macrocyclic or non-macrocyclic binding sites." Thesis, University of Sheffield, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427184.

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33

Lanquist, Austin Paul. "Investigation of Ligand Electronic Effects on the Photodissociation of Acetonitrile from Ruthenium Polypyridyl Complexes." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu152570510019408.

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34

Olaprath, Waynie Wilson. "Electrochemical and spectroscopic characterization of a polypyridyl Ru(II) complex containing a fused alloxazine /." View online, 2009. http://repository.eiu.edu/theses/docs/32211131598949.pdf.

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35

Majewski, Marek B. "Ruthenium(II) complexes bearing polypyridyl ligands with amide bound thienyl groups for photochemical energy conversion." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44478.

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36

Mengel, Andreas K. C. [Verfasser]. "Bis(tridentate) polypyridyl transition metal complexes for DSSC and LEC applications / Andreas K. C. Mengel." Mainz : Universitätsbibliothek Mainz, 2017. http://d-nb.info/1139215035/34.

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37

Tart, Nicholas Michael. "Photophysical properties of iradium(III) and ruthenium(II) complexes containing bis- and terdentate polypyridyl ligands." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527229.

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38

尹俊偉 and Chun-wai Wan. "Spectroscopic properties and coordination chemistry of d10 metal complexes with the polypyridyl and naphthyridyl ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31223564.

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39

Folmar, Michele L. "Synthesis and Characterization of a New Ruthenium(II) Polypyridyl Compound with a Quinolate-Type Ligand." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1469047981.

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40

Evans, Alba Pilar. "New Ruthenium(II) Polypyridyl Compounds with Quinoline Type Ligands for the Treatment of Cutaneous Leishmaniasis." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1511881725973833.

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41

Margonis, Caroline Marie. "Polyaromatic-Terminated Iron Polypyridyl Complexes For The Functionalization Of Carbon Surfaces And Electrocatalytic Hydrogen Generation." W&M ScholarWorks, 2021. https://scholarworks.wm.edu/etd/1627047877.

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Artificial Photosynthesis (AP) focuses on developing methods for the conversion of solar energy into chemical fuel in the form of H2 and O2. Heterogeneous photocatalytic systems incorporating carbon nanotubes (CNTs) have shown much promise but are currently limited and expensive due to their reliance on noble metals. To that end, this work focuses on the development and synthesis of cheaper naphthalene- and pyrene-terminated iron polypyridyl complexes for use in the simultaneous functionalization of carbon surfaces, electrocatalytic proton reduction, and eventual incorporation in photocatalyti

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42

Wan, Chun-wai. "Spectroscopic properties and coordination chemistry of d10 metal complexes with the polypyridyl and naphthyridyl ligands /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22227301.

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43

Sun, Yang. "STUDY OF THE MECHANISM OF ACTION FOR Ru(II) POLYPYRIDYL COMPLEXES AS POTENTIAL ANTICANCER AGENTS." UKnowledge, 2018. https://uknowledge.uky.edu/chemistry_etds/97.

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Application of chemotherapeutic agents in current cancer treatment has been limited by adverse effects as poor selectivity results in systemic toxicity; most chemotherapy approaches also experience inherited or acquired drug resistance which lead to reduced treatment outcome. Research efforts have focused on the discovery of novel chemotherapies that overcome the limitations mentioned above. Ru(II) polypyridyl complexes with anti-cancer properties have been extensively studied as traditional cytotoxic agents and photodynamic therapy agents due to their photophysical and photochemical character

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44

Jäger, Michael. "Beyond Classical Ruthenium(II) Polypyridyl Complexes : Photosensitizers as Building Blocks For Linear Donor-Photosensitizer-Acceptor Assemblies." Doctoral thesis, Uppsala universitet, Institutionen för fotokemi och molekylärvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9555.

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This thesis describes ruthenium(II) polypyridyl-type complexes tailored for artificial photosynthesis. Inspired by Nature, the primary events in photosystem II are mimicked by donor-photosensitizer-acceptor (D-P-A) assemblies. The photosensitizer plays a key role in such processes, and the combination of structural and photophysical properties is essential to control the electron transfer steps. In the first part, the general requirements for photosensitizers are discussed. The second part deals with [Ru(bpy)3]2+-benzoquinone (Q) dyads (bpy is 2,2´-bipyridine) based on an asymmetric 5,5´-bisam

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45

唐偉方 and Wai-fong Tong. "X-ray crystallographic studies of osmium and ruthenium complexes of multianionic, polypyridyl and tertiary amine ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31210016.

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46

Tong, Wai-fong. "X-ray crystallographic studies of osmium and ruthenium complexes of multianionic, polypyridyl and tertiary amine ligands /." [Hong Kong : University of Hong Kong], 1991. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13019272.

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47

Rohrabaugh, Thomas Nelson Jr. "The Application of Ru(II) Polypyridyl Photoinduced Ligand Exchange from Drug Delivery to Photoactivation of Fluorescent Dyes." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1533226287168103.

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48

Ono, Takashi. "Second-Row Transition-Metal Complexes Relevant to CO2." Doctoral thesis, Universitat Rovira i Virgili, 2014. http://hdl.handle.net/10803/276964.

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dinucleares de rutenio que contienen ligandospolypyridyl. Estos complejos se han aplicado para las reacciones catalíticas, tales como la reducción de CO2 y la oxidación del agua y sustrato orgánico. En la primera, las actividades catalíticas hacia la reducción de CO2 se han investigado desde el punto de vista de las propiedades electrónicas y estéricas de los catalizadores, así como su nuclearidad. En el segundo, la aplicación de mono-y dinucleares complejos de Ru-aqua que contienen ligando tridentadoaniónico hacia reacción de oxidación se ha estudiado. Además, una reactividad potencial de dia

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49

Kender, William Theodore. "Controlling Excited State Electron Delocalization via Subtle Changes to Inorganic Molecular Structures." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534271989190317.

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50

Lundqvist, Maria J. "Quantum chemical modeling of dye-sensitized titanium dioxide : ruthenium polypyridyl and perylene dyes, TiO₂ nanoparticles, and their interfaces /." Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7141.

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