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Dissertations / Theses on the topic 'Mechanism of iridium(III)'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Tu, Jing. "Exploiting an unexpected reactivity of cyclometalated iridium dimers for the direct synthesis of [Ir(C^N)2(O^CN)] complexes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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Here we present the exploitation of the mechanism of the unexpected reactivity of μ-dichloro-bridged dimeric complex with formula [Ir(C^N)2Cl2] for the direct synthesis of [Ir(C^N)2(OC^N)] complexes (named JTG). JTG is an octahedral iridium complex with three cyclometalating ligands in meridional structure, where C^N indicates 2-phenylpyridyl and OC^N indicates that a oxygen is inserted between carbon from the 2-phenylpyridyl and center iridium ion. A series of synthesis conditions were investigated to understand the formation of the JTG. During the research process, the formation of meridiona

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2

Talwar, Dinesh. "Hydrogenation and dehydrogenation with cyclometalated iridium (III) complexes." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2003856/.

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The selective hydrogenation and dehydrogenation of organic molecules is a fundamentally challenging and an attractive transformation for both, industry and academia. However, catalysts capable of undergoing both transformations under environmentally benign conditions are rare. In this thesis, our contribution to the development of a “universal” catalyst capable of achieving both hydrogenation and dehydrogenation of a wide range of organic compounds under mild conditions is presented. A general introduction covering the recent developments in the area of transfer hydrogenation of C=X (X = O, N)

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3

Karpin, George W. "Synthesis and Antimicrobial Activity of Half-Sandwich Ir(III), Rh(III), and Co(III) Complexes." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/79414.

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This dissertation describes the synthesis and antimicrobial use of a series of half-sandwich Ir(III), Rh(III), Co(III) amino acid and ethylenediamine complexes. This investigation focuses on the formulation (ηn-arene)M(L)X, (L = ethylenediamine or α-amino carboxylate), (M= Ir, Rh, Ru, Co). Arene, Ligand and metal center variations were designed to tailor antimicrobial activity specific for each organism studied (Staphylococcus aureus or Mycobacteria). Each of the D/L-amino acids formed a diasteromeric complex with chiral centers on both the metal center and amino acid ligand. The unique chira

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4

Weigand, Stefan. "Metallierung von Pyridylmetallocenen durch Platin(II), Gold(III), Quecksilber(II) und Iridium(III)." Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-166074.

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5

Leung, Ka Ho. "Oligonucleotide-based lunimescent detection platform utilizing iridium (III) complexes." HKBU Institutional Repository, 2015. https://repository.hkbu.edu.hk/etd_oa/163.

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Luminescent transition metal complexes have arisen as viable alternatives to organic dyes for sensory applications due to their notable advantages. This thesis aimed to synthesize different kinds of Ir(III) complexes, explore their interactions with DNAs and investigate their application for the construction of label-free oligonucleotide-based sensing platforms. A series of Ir(III) complexes incorporating a variety of C^N and N^N donor ligands were synthesized and were shown to exhibit G-quadruplex-selective binding properties via emission titration, UV/vis titration, fluorescence resonance en

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6

Wang, Modi. "The application of iridium(iii) complexes in luminescent sensing." HKBU Institutional Repository, 2016. http://repository.hkbu.edu.hk/etd_oa/296.

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Luminescent transition metal complexes have arisen as viable alternatives to organic dyes for sensory applications due to their notable advantages. This thesis aimed to synthesize different kinds of iridium(III) complexes as chemosensors and G-quadruplex probes for the detection of metal ions, small molecules, proteins and DNA to demonstrate the versatility of iridium(III) complex in luminescence sensing. Iridium(III) complex chemosensors were synthesized and developed for the detection of Cu2+ and cysteine. The iridium(III) complex plays the role of the "signaling unit", which transduces the

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7

Brown, Loren. "Rapid Synthesis, Characterization, and Catalytic Function of Rhodium(III) and Iridium(III) Chloro-bridged Dimers." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/89732.

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Rh(III) and Ir(III) dimeric complexes with tunable cyclopentadienyl (Cp) rings have proven versatile for both catalysis and as synthetic precursors. An efficient microwave method to synthesize Rh(III) and Ir(III) dimeric complexes [(η5-ring)MCl]2(μ2-Cl)2, (where (η5-ring)MCl = (η5-Me4C5R)Rh(III)Cl or (η5-Me4C5R)Ir(III)Cl) was developed. A modular design for the substituted cyclopentadienes HC5Me4R was based on Grignard reactions of 2,3,4,5-tetramethylcyclopent-2-en-1-one (R = alkyl, 12 examples; R = aryl, 3 examples) or by SNAr reactions of potassium tetramethylcyclopentadienide with perfluoro

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8

Bhangu, Kiran. "Synthesis and reactivity of terminal phosphido complexes of iridium(III)." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26168.

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The iridium(III) methyl dlarylphosphido complexes, Ir(CH₃)(PR₂)-[N(SiMe₂CH₂PPh₂)₂] (2a: R = phenyl, 2b: R = meta-tolyl), have been successfully prepared by transmetalation of the iridium(III) methyl iodide complex, Ir(CH₃)(I)[N(SiMe₂CH₂PPh₂)₂], with the corresponding lithium diarylphosphide. Based primarily on a nuclear Overhauser effect difference experiment, these complexes are assigned a stereochemistry intermediate between square pyramidal and trigonal bipyramidal forms. The pyramidal geometry at the phosphido ligand is evident from the ³¹P{¹H} NMR spectral data. The complex 2a affords a

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9

Tian, Nan [Verfasser]. "Phosphorescent iridium(III) complexes, copolymers and their applications / Nan Tian." Wuppertal : Universitätsbibliothek Wuppertal, 2012. http://d-nb.info/1025663772/34.

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10

Bettington, Sylvia. "The synthesis and photophysical studies of cyclometalated iridium(III) complexes." Thesis, Durham University, 2003. http://etheses.dur.ac.uk/1295/.

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In 1985, fac-Ir(ppy)3 was characterised as the first triply ortho-metalated iridium(III) species. This bright yellow solid exhibits green phosphorescent emission. Since then, numerous related iridium(III) complexes of the formula Ir(L)3 and Ir(L)2acac have been synthesised utilising ligands such as 2-phenylpyridine (ppy), 4-(2-pyridyl)benzaldehyde (fppy), benzo[h]-quinoline (bzq) and 2-(2-thienyl)pyridine (thpy), to name, but a few. These complexes give rise to tuneable emission wavelengths via ligand modification and also exhibit electroluminescence allowing them to be used as phosphorescent

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11

Mohd, Ali Noorshida. "Photophysical properties of polynuclear complexes containing phenylpyridine-iridium(III) units." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/4870/.

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12

Weynand, Justin. "Synthèse et étude de complexes de Ru(II) et d'Ir(III) ciblant l'ADN G4." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAV062.

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Le cancer est actuellement l’un des fléaux les plus importants du XXIème siècle. Il représente la cause majeure des décès dans les pays occidentaux, derrière les maladies cardiovasculaires. Beaucoup d’études scientifiques ont montré le rôle important des télomères dans le développement d’un cancer. Ces structures riches en guanine trouvées à l’extrémité des chromosomes sont capables de s’assembler sous forme de quadruple hélices, appelées ADN G-quadruplex. Ces structures sont également impliquées dans l’immortalité des cellules cancéreuses. A cet effet, l’ADN télomérique représente une cible t

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13

Selnau, Henry Edward. "C-H activation: oxidative addition to an iridium(I) center and reactivity of the resulting iridium(III) species." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/40080.

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14

Lin, Sheng. "Cyclometalated iridium (III) complexes and their applications in the detection of biomarkers." HKBU Institutional Repository, 2019. https://repository.hkbu.edu.hk/etd_oa/621.

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Luminescent transition metal complexes have arisen as viable alternatives to organic dyes for sensory applications due to their notable advantages. This thesis aimed to synthesize different kinds of iridium(III) complexes, explore their interactions with DNAs and investigate their application for the construction of oligonucleotide-based sensing platforms for important biomarkers. A series of iridium(III) complexes incorporating a variety of C^N and N^N donor ligands were synthesized and were demonstrated to possess G-quadruplex-selective binding properties via emission titration, UV/vis titra

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15

Mancini, Riccardo. "Inverse and regular phenyl-azole ligands for luminescent Iridium(III) complexes." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/9318/.

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In the modern society, light is mostly powered by electricity which lead to a significant increase of the global energy consumption. In order to reduce it, different kinds of electric lamps have been developed over the years; it is now accepted that phosphorescence-based OLEDs offer many advantages over existing light technologies. Iridium complexes are considered excellent candidates for bright materials by virtue of the possibility to easily tune the wavelength of the emitted radiation, by appropriate modifications of the nature of the ligands. It is important to note that the synthesis of I

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16

Majavu, Avela. "Separation of rhodium (III) and iridium (IV) using functional polymeric materials." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/6576.

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Poly(vinylbenzylchloride) (PVBC) nanofibers were fabricated by the electrospinning process. The Merrifield micropheres, silica microsparticles and PVBC nanofibers were functionalised with different quaternary diammonium groups derived from ethylenediamine (EDA), tetramethylenediamine (TMDA), hexamethylenediamine (HMDA), 1,8-diaminooctane (OMDA), 1,10-diaminodecane (DMDA) and 1,12-diaminododecane (DDMDA) and investigated for separation of [RhCl5(H2O)]2- and [IrCl6]2-. The sorbent materials were characterised by means of FTIR, XPS, SEM, BET surface area, thermogravimetric analysis and elemental

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17

Wu, Chun. "The application of iridium(III) complexes in luminescent sensing and theranostics." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/805.

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The development of transition metal complex-based luminescent probes and theranostic have recently aroused tremendous interest for labelling and detecting environmental contaminants and cellular biomarkers, particularly in the use of real- time diagnosis and treatment of disease. Reasons behind include the unique photophysical properties of transition metal complexes, particularly in the properties of their long-lived and environmentally sensitive emission, which can be easily fine-tuned via the modification of the metal center and auxiliary ligand of the metal complex to achieve the desired

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18

Benjamin, Helen. "New cyclometalating ligands for emissive iridium(III) complexes for OLED applications." Thesis, Durham University, 2016. http://etheses.dur.ac.uk/11564/.

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The literature surrounding the design of iridium(III) complexes for OLED applications is summarised, with a particular focus on tuning the colour of the emission via structural modification. In this thesis a new family of sulfone-containing ligands was synthesised, with the aim of blue-shifting the emission of the resultant iridium complexes compared to the parent complex, FIrpic. Introduction of a sulfone unit to key positions on dfppy resulted in a blue-shift of 10 nm compared to FIrpic, due to the lowering of the HOMO with respect to the LUMO. This series of complexes was then extended to i

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19

Nallas, Girlie Naomi A. "Heteronuclear trimetallic polyazine complexes of iridium (III) or rhodium (III) as electrocatalysts for the reduction of CO2." Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/40465.

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20

Rice, Shannnon Carol. "O-H activation in phosphates: oxidative addition to an iridium(I) center and reactivity of the resulting iridium(III) species." Thesis, Virginia Tech, 1995. http://hdl.handle.net/10919/40854.

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21

Rice, Shannon Carol. "O-H activation in phosphates : oxidative addition to an iridium(I) center and reactivity of the resulting iridium(III) species /." This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-01312009-063434/.

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22

Hierlinger, Claus. "Syntèse, caractérisation et propriétés optoélectroniques des complexes d’Iridium(III) possédant des ligands chélatants à cinq et six chaînons." Thesis, Rennes 1, 2018. http://www.theses.fr/2018REN1S102/document.

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Ici, la conception, la synthèse et la caractérisation et les propriétés optoélectroniques de complexes Ir(III) pour une application dans des dispositifs optiques non linéaires et électroluminescents sont décrits. Le type de complexes varie de ceux de la forme [Ir(C^N)2(N^N)]+ avec des ligands conjugués et non conjugués (où C^N = ligand cyclométallisant et N^N = ligand neutre) à ceux des forment [Ir (C^N^C)(N^N)Cl] (où C^N^C = ligand tripode tridenté). Le chapitre 1 donne une introduction à la photophysique se produisant dans les complexes de métaux de transition et aux applications possibles d

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23

Li, Zhongjing. "Synthesis, Photophysics, and Nonlinear Absorption of Platinum (II) and Iridium (III) Complexes." Diss., North Dakota State University, 2013. https://hdl.handle.net/10365/27114.

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Square planar d8 platinum(II) complexes and octahedral d6 iridium(III) complexes were synthesized. Their photophysics were studied in detail. Structure-property relationship was studied by varying the substitution on the ligands or the π-conjugation extent of the ligands. In Chapter 2, bipyridyl platinum(II) bisstilbenylacetylide complexes (2-1 – 2-6) with different auxiliary substituents on the stilbenylacetylide ligands were synthesized. While the substitution of H on the 4'-position of stilbene by Br and OMe groups does not alter the photophysical properties of the complexes eminently, the

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24

Liu, Bingqing. "Synthesis, Photophysics, Nonlinear Absorption, and Photodynamic Therapy Study of Iridium(III) Complexes." Diss., North Dakota State University, 2018. https://hdl.handle.net/10365/28858.

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25

Peers, Martyn. "Ruthenium(II) and iridium(III) complexes as photosensitisers towards light-driven biocatalysis." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/rutheniumii-and-iridiumiii-complexes-as-photosensitisers-towards-lightdriven-biocatalysis(ad591d9d-298c-4eca-9ccd-88df626c9fa8).html.

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Biocatalysis is becoming an increasingly attractive alternative to more traditional chemical transformations for use in pharmaceutical and industrial applications. This interest is primarily a consequence of the high regio-, stereo- and enantioselectivity that is associated with enzyme catalysed reactions. However, the proliferation of such techniques has been limited due to the dependence of enzyme activity upon the presence of redox cofactors, which are typically expensive and must be used in conjunction with efficient regeneration systems. Whilst numerous methods have been described, of par

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26

Cankut, Ahmet N. "Synthesis and luminescence studies of Ir(III) complexes and iridium/lanthanide dyads." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/10445/.

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This thesis is concerned with the preparation and photophysical studies of various Ir(III) complexes and Ir(III)/Ln(III) dyads. Chapter 1 provides an introduction to the background of d-metal and f-metal luminescence and their use in biological applications. The emphasis is on the use of Ir(III) chromophores based on phenylpyridine ligands to stimulate emission from Ln(III) ions via an energy-transfer mechanism (the ‘antenna effect’). Examples of these Ir(III)/Ln(III) dyads from literature are given. Chapter 2 describes the preparation of the complexes [Ir(fppy)2Lpytz] and [Ir(fppy)2Lpic] and

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27

Franks, Marion A. "The Synthesis and Characterization of Some Ir(III) Dicationic Complexes." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30039.

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The complex [IrH(COD)(PMe3)3][Cl]2o2HCl was prepared by the reaction between [Ir(COD)(PMe3)3]Cl and HCl gas in methylene chloride. The product precipitated from the solution and is soluble in polar solvents such as water, acetonitrile, and acetone. [IrH(COD)(PMe3)3][Cl]2o2HCl undergoes reaction in water to form fac-IrCl3(PMe3)3. Also, other [IrH(COD)(PMe3)3][X]2 salts were prepared with X being PF6, OTF, or BF4. It was determined that each salt retained a certain amount of excess acids and [IrH(COD)(PMe3)3][OTF]HOTf was the most stable in the solvent acetonitrile while [IrH(COD)(PMe3)3][PF6

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28

Maity, Ayan. "Metal-Carbon (Metal = Iridium(III) and Gold(III)) Bond Formation Under Transmetalation and Catalytic Conditions; Metallonucleosides as Anticancer Drugs and Bio-photonic Probes; and Synthesis of Iridium Fluoride Complexes." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1409924334.

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29

Weigand, Stefan [Verfasser], and Karlheinz [Akademischer Betreuer] Sünkel. "Metallierung von Pyridylmetallocenen durch Platin(II), Gold(III), Quecksilber(II) und Iridium(III) / Stefan Weigand. Betreuer: Karlheinz Sünkel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1048014452/34.

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30

Xie, Zheng. "New luminescent organometallic complexes of platinum (II), iridium (III), copper (I) and gold (III) and their optoelectronic applications." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1520.

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31

Beatty, M. F. "The mechanism of uroporphyrinogen-III biosynthesis." Thesis, Bucks New University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376423.

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32

Congrave, Daniel Gwyn. "Synthesis and photophysical properties of new di- and mononuclear phosphorescent iridium (III) complexes." Thesis, Durham University, 2018. http://etheses.dur.ac.uk/12580/.

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Cyclometallated Ir(III) complexes have attracted significant attention as luminescent materials due to a range of favourable properties, such as their high photoluminescence quantum yields, microsecond phosphorescence lifetimes, thermal stability, robust electrochemistry and synthetic versatility, which has enabled their emission to be tuned across the visible spectrum from the near-UV to the near-IR. They have been applied to various applications, such as in bioimaging, sensing, photocatalysis, and as sensitisers for singlet oxygen and as emitters in organic light emitting devices (OLEDs). Wh

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33

Wang, Haitao. "Synthesis and bio-applications of luminescent iridium (III) and rutherium (II) bipyridine complexes." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/774.

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This thesis is based on the past three years of research work including synthesis, characterization of three series of iridium(III) complexes and one series of ruthenium(II) complexes, and their comparative bio-applications of DNA-binding, cell morphology, cytotoxicity, mitochondrial membrane potential, cellular uptake and distribution. Chapter 1 introduces the background and recent studies of transition-metal complexes as biosensors and anti-tumor medicines. Their structure related properties of cytotoxicities, cellular uptake and distributions were also discussed. In chapter 2, five iridium

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34

Wang, Haitao. "Synthesis and bio-applications of luminescent iridium (III) and ruthenium (II) bipyridine complexes." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/831.

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This thesis is based on the past three years of research work including synthesis, characterization of three series of iridium(III) complexes and one series of ruthenium(II) complexes, and their comparative bio-applications of DNA-binding, cell morphology, cytotoxicity, mitochondrial membrane potential, cellular uptake and distribution. Chapter 1 introduces the background and recent studies of transition-metal complexes as biosensors and anti-tumor medicines. Their structure related properties of cytotoxicities, cellular uptake and distributions were also discussed. In chapter 2, five iridium(

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35

Santoro, Amedeo. "Complexes of platinum(II) and iridium(III) with liquid crystal and luminescent properties." Thesis, University of York, 2010. http://etheses.whiterose.ac.uk/1006/.

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This thesis is concerned with the search for luminescent metallomesogens, a class of materials that presents the combination of two different properties, luminescence (triplet emission) and liquid crystallinity. The motivation is two-fold. One possibility is that these materials could be used as polarised back-light emitters in liquid crystal displays, which would mean that the back polariser could be removed, so improving light throughput through the device. The other is that, owing to the order inherent in liquid crystal phases, the use of liquid-crystalline components will lead to better ch

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36

Henwood, Adam Francis. "Tuning the physical and optoelectronic properties of phosphorescent iridium(III) complexes : applications to organic semiconductor devices." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/12976.

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This thesis explores the design, synthesis and characterisation of iridium(III) complexes for optoelectronic applications; in particular, cationic [Ir(CˆN)₂(NˆN)]⁺-type emitters (where CˆN is an anionic bidentate cyclometalating ligand such as 2-phenylpyridinato, ppy, and NˆN is a neutral bidentate ligand such as 2,2'-bipyridine, bpy) for use in light-emitting electrochemical cells (LEECs). Design strategies aim to achieve high photoluminescence quantum yields (Φ[sub](PL)) for these complexes. Chapter 1 provides an overview of the fundamental photophysics of luminescent transition metal comple

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Baranoff, Etienne. "Transfert d'électron photoinduit dans des triades construites autour d'un complexe d'iridium (III) bisterpyridine." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR13070.

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Les systèmes photosynthétiques artificiels sont capables de réaliser la transformation de l'énergie lumineuse en énergie chimique. L'absorption de lumière par un chromophore est suivie par la création d'une différence de potentiel induite par une série de transferts d'éléctrons entre des unités électro-actives, conduisant à une espèce à charges séparées. Des travaux préliminaires ont montré que l'utilisation de l'iridium(III) comme centre photoactif semble prometteuse. En effet, les états excités des complexes de la famille Ir(tpy)23+ ont une durée de vie longue (>1ms à température ambiante

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38

Chen, Zhao. "Cyclometalated iridium(III) complexes for full-color and near infrered phosphorescent organic light-emitting diodes." HKBU Institutional Repository, 2018. https://repository.hkbu.edu.hk/etd_oa/484.

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Dramatic increase of energy consumption and environmental problems invigorate the development of organic semi-conductive materials to substitute for the conventional inorganic materials in the application of photovoltaic and light-emitting devices. In view of the merits of low driving voltage, high power conversion efficiency, large-area fabrication of thin and light organic films as well as saturated emission, organic light-emitting diodes (OLEDs) have received much more consideration by scientists in the past two decades. And even out of laboratory, the OLEDs are popular among the commercial

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39

Wu, Hao. "Metal-organic compounds of iridium(III) and platinum(II): synthesis, characterization and optoelectronic applications." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/61.

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The molecular design, synthesis and characterization of a series of ligands and the corresponding novel iridium(III) or platinum(II) complexes are discussed in this thesis. Their photophysical and electrochemical properties, the applications in organic light-emitting diodes (OLEDs), dye-sensitized solar cells (DSSCs), aggregation induced emission (AIE) and time-resolved infrared (TRIR) study are also investigated. Chapter 1 generates a brief overview of the background, principle, and development of OLEDs, DSSCs, AIE materials and the involvement of the TRIR technique. Chapter 2 describes th

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40

Galtrey, Mark John. "The mechanism of luminescence in III-nitrides." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609147.

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41

González, Miera Greco. "Homogeneous and heterogeneous Cp*Ir(III) catalytic systems : Mechanistic studies of redox processes catalyzed by bifunctional iridium complexes, and synthesis of iridium-functionalized MOFs." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-143343.

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The purpose of this doctoral thesis is to investigate and develop catalytic processes mediated by iridium(III) complexes. By understanding the mechanisms, the weaknesses of the designed catalysts can be identified and be overcome in the following generation. The thesis is composed of two general sections dedicated to the synthesis and applications of homogeneous catalysts and to the preparation of heterogeneous catalysts based on metal-organic frameworks (MOFs). After a general introduction (Chapter 1), the first part of the thesis (Chapters 2-4, and Appendix 1) covers the use of several homog

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42

Chau, Nga Yuen. "Molecular design, synthesis and luminescent properties of new functional metallophosphors of iridium (III) and platinum (II)." HKBU Institutional Repository, 2015. https://repository.hkbu.edu.hk/etd_oa/220.

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Organic light-emitting diode (OLED) technology has found multitudinous applications in the development of solid-state lighting, flat-panel displays and flexible screens. Nowadays, the phosphorescent OLEDs based on metallophosphors can reach sufficiently high efficiencies for practical application. Recently, red, green and blue (RGB) platforms of highly efficient phosphorescent emitters have been achieved and OLEDs TV is now commercialized in the marketplace. However, the design and synthesis of innovative emitter materials play an important role in commercialization of the OLED technology. Th

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43

Tan, Guiping. "Synthesis of new iridium (iii) and platinum (ii) cyclometallates and theiir application in high-efficiency organic light-emitting devices." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1418.

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Howarth, Ashlee Joanna. "Bis-cyclometallated iridium(III) complexes bearing pyridineimine and salicylimine ancillary ligands : synthesis, characterization and applications." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/48396.

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Two stable diastereomeric atropisomers of a cyclometallated iridium complex containing a pyrene functionalized pyridineimine ligand have been isolated. These are the first fully characterized examples of metal containing atropisomers in which the rotational axis is not between two chelating atoms. The atropisomers can be converted thermally via a rocking motion of the pyrene moiety. A new mechanism for enhanced phosphorescence emission in the solid state (EPESS) in cyclometallated Ir complexes with the general formula [Ir(C^N)₂(N^O)] involving distortion of the six-membered chelate ring of the

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Brulatti, Pierpaolo. "New luminescent iridium (III) complexes containing NCN cyclometallated ligands : synthesis, photophysical properties and emission tuning." Thesis, Durham University, 2010. http://etheses.dur.ac.uk/447/.

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The luminescence properties of cyclometallated iridium(III) complexes render them of interest, for example, as phosphorescent dopants in organic light-emitting devices (OLEDs), as photoactive units in solar energy conversion, and as biosensors. The vast majority comprise three bidentate ligands, archetypal examples being Ir(ppy)3 and [Ir(ppy)2(bpy)]+ (ppy = 2-phenylpyridine; bpy = 2,2'- bipyridine). The work described here explores the chemistry of iridium(III) complexes that contain a terdentate cyclometallating ligand. Most of the complexes studied have the general formula Ir(N^C^N)(N^C)X, w

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Melis, Diana. "Quinoline-triazole half-sandwich iridium(III) complexes: Synthesis, antiplasmodial activity and preliminary transfer hydrogenation studies." Master's thesis, Faculty of Science, 2020. http://hdl.handle.net/11427/32414.

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Malaria is a devastating and pervasive infectious disease and continues to be a major global health issue, with over half the world's population being at risk of transmission. In the absence of a suitable vaccine, efforts to eradicate the disease rely heavily on clinically available drugs. Plasmodium falciparum, the deadliest species of malaria, has however become resistant to most conventional antimalarial treatments, resulting in the worldwide search for new, effective drugs. Amongst other requirements, these drugs should target resistant parasitic strains in an attempt to curb the escalatio

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Rota, Martir Diego. "Chiral iridium(III) and ruthenium(II) complexes as phosphorescent scaffolds for heterometallic supramolecular self-assembly." Thesis, University of St Andrews, 2018. http://hdl.handle.net/10023/14555.

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This thesis explores the design, synthesis and optoelectronic properties of supramolecular photoactive materials based on chiral iridium(III) and ruthenium(II) metalloligands. Our design strategies aim to create a high concentration of chromophoric units that, when self-assembled in well-defined geometrical arrangements, exhibit emergent photophysical properties.

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Lepeltier, Marc. "Nouveaux complexes de l'iridium(III) à ligands cyclométallés fonctionnels : synthèse et propriétés photophysiques." Rennes 1, 2005. http://www.theses.fr/2005REN1S143.

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Cette thèse présente la synthèse et les propriétés de phosphorescence de nouveaux complexes cyclométallés de l'iridium(III) à ligands fonctionnels. Nous avons préparé des complexes bis- et tris-cyclométallés à ligands phénylpyridines substitués par des groupements styryles sur les noyaux pyridines. Selon la température de réaction, les complexes bis-cyclométallés formés sont réduits ou non au niveau des groupements styryles. La synthèse des complexes tris-cyclométallés homologues a été mise au point par fonctionnalisation du complexe méthylé précurseur. Nous avons montré que la couleur de l'ém

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Lu, Lihua. "Design and syntheses of Ir(III) complexes as luminescent biosensors." HKBU Institutional Repository, 2015. https://repository.hkbu.edu.hk/etd_oa/276.

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Luminescent transition metal complexes have attracted tremendous interest in the analytical field. Most luminescent metal complexes possess long emission lifetimes in the visible region, and their phosphorescence can be readily distinguished from short-lived background auto-fluorescence. Moreover, their large Stokes shift can prevent self-quenching, while their modular synthesis allows their properties to be readily tuned without labor-intensive synthetic protocols. These properties render transition metal complexes as promising candidates for the development of biosensors. In this study, I ai

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Ko, Chung Nga. "Luminescent iridium(III) complex-based sensing assays for the disease-related biomolecule and the endogenously generated small molecule." HKBU Institutional Repository, 2020. https://repository.hkbu.edu.hk/etd_oa/737.

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Transition metal complex, especially iridium(III) complex, possesses substantial advantages in sensing applications. To date, a series of iridium(III) complex-based chemosensors and biosensors have been constructed for the detection of a wide range of biologically important analytes, including ions, small molecules, amino acids, peptides and proteins. Chapter 1 provides an overview of the general synthetic routes and properties of iridium(III) complexes. General strategies for the development of iridium(III) complex-based chemosensors and the utilization of iridium(III) complex as a DNA probe

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