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Дисертації з теми "Luminescent rhenium complexes"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 28 січня 2023

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1

Wong, Man-chung. "Syntheses and photophysics of luminescent mono- and dinuclear rhenium complexes containing functional ligands /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20128617.

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2

Moreira, Vanesa Fernandez. "Design, synthesis and application of luminescent rhenium complexes in cell imaging." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54717/.

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This thesis describes the development of a new variety of lumophores, in particular luminescent rhenium(I) complexes of the type Re(bisim)(CO)3L n+, where bisim represents a bisimine derivative, e.g. bipyridine, and Lisa pyridine derivative (n = 1) or a chloride (n = 0), suitable for specific cell imaging and whose modified photophysical properties overcome some of the problems associated with traditional imaging agents (small Stokes shift, short lifetimes, etc). Specifically the successful synthesis and photophysical studies of a chemical model to validate the concept of a membrane permeable cell-imaging device, fac-Re0)ipyXCO)3(PyCH2COO(CH2)3OTBD) +, are presented. Further investigations towards and improved cell imaging agent, considering different issues like water solubility, lipophilicity and cell encapsulation rate, are then undertaken. Consequently, a new range of water soluble rhenium complexes, ykc- Re(bisimXCO)3(L) n" where bisim is a water soluble bathophenanthroline and L is a pyridine derivative (n = 2) or a chloride (n = 1), as well as a variety of novel yac-Re(bisimXCO)3Cl complexes, where bisim is a terpyridine derivative bearing a self destruction device which can be triggered by nitroreductase, are also presented. Additionally, the synthesis and structural description of a trinuclear rhenium complex is reported, along with a discussion of its use in inclusion experiments and attempts at analogue formation. The design and synthesis of a thiol selective luminescent rhenium complex, fac-Re(bipyXCO)3(PyCH2Cl) +, is described, along with the demonstration of its thiol selectivity both in vitro and in vivo as demonstrated by specific mitochondrial localization. Finally, studies of membrane permeability in liposome models, cellular uptake and localization in different cells such as Spironucleous vortens, yeast cells and human breast cancer cells of a variety of rhenium complexes above cited are also reported. These results combine to demonstrate the promising future of this new class of imaging probes as specific cell imaging agents and therefore, this work represents the initial step in the growing area of the development of transition metal based imaging agents.

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3

Wong, Man-chung, and 黃文忠. "Syntheses and photophysics of luminescent mono- and dinuclear rhenium complexes containing functional ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B30149897.

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4

Chong, Hung-fai, and 莊鴻輝. "Syntheses and photophysics of luminescent homo- and heterometallic complexes of rhenium(I) containing mono- and poly-ynyl ligands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31241578.

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5

Chung, Wai-kin. "Design and syntheses of luminescent rhenium(I) diimine alkynyl complexes with hole-transporting and/or electron-transporting moieties and their use as potential triplet emitters." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42181938.

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6

Kai, Sze-fai Alex. "Design and synthesis of luminescent Rhenium(I) and Ruthenium(II) Diimine complexes for the recognition of ions and small molecules by host-guest interactions /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20567091.

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7

紀思輝 and Sze-fai Alex Kai. "Design and synthesis of luminescent Rhenium(I) and Ruthenium(II) Diimine complexes for the recognition of ions and small molecules byhost-guest interactions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B3123866X.

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8

Chung, Wai-kin, and 鍾偉堅. "Design and syntheses of luminescent rhenium(I) diimine alkynyl complexes with hole-transporting and/or electron-transporting moietiesand their use as potential triplet emitters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42181938.

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9

Zhang, Jiaxin. "Syntheses and spectroscopic studies of luminescent surfactant rhenium(I) and ruthenium(II) diimine complexes : potential applications as functional materials for second-harmonic generation and mesoporous silicate formation /." View the Table of Contents & Abstract, 2004. http://sunzi.lib.hku.hk/hkuto/record/B30267791.

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10

He, Menglan. "Nouveaux complexes rhénium(I) tricarbonyles vers des applications en catalyse, photophysique et biologie." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEE005/document.

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Анотація:

Dans cette thèse, des complexes [Re(N^N)(CO)3X]n+ ont été conçus pour différentes applications. Dans le premier chapitre, l’impact de différentes modifications sur le ligand N^N ou le ligand X sur les propriétés photophysiques des complexes a été étudié. Dans le second chapitre, une série de nouveaux complexes a été conçue et étudiée comme catalyseurs homogènes/hétérogènes pour l’électroréduction du CO2. Dans le dernier chapitre, nous avons introduit un ligand diimine pour la coordination au Re en tant que lien dans la macrocyclisation de peptidomimétiques pour la modulation d’interaction protéine-protéine
In this thesis, [Re(N^N)(CO)3X]n+ complexes were designed towards different applications. In the first chapter, the impact of different modifications on either the N^N ligand or the X ligand on the photophysical properties were studied experimentally and computationally. In the second chapter, we designed and studied a series of new Re complexes as homogeneous/heterogeneous catalysts for CO2 electroreduction and their catalytic abilities were evaluated. In the last chapter, the introduction of a Re complex as macrocyclic linker in macrocyclic peptidomimetics is used to both stabilize the active secondary structure and introduce imaging modalities towards modulation of protein-protein interactions

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11

Zhang, Jiaxin, and 張家新. "Syntheses and spectroscopic studies of luminescent surfactant rhenium(I) and ruthenium(II) diimine complexes: potential applications as functional materials forsecond-harmonic generation and mesoporous silicate formation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B45015272.

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12

Wright, Phillip James. "Sensitisation of lanthanide luminescence by rhenium tetrazolato complexes." Thesis, Curtin University, 2016. http://hdl.handle.net/20.500.11937/1135.

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Luminescent inorganic compounds have received a great deal of attention due to the ability to modulate their properties and obtain highly emissive compounds for applications in light emitting devices and cellular labelling. This study targets the formation of emissive, multinuclear, tetrazolato complexes of Re(I), and utilises these complexes as sensitisers for lanthanide luminescence. The results increase the understanding of energy transfer mechanisms in d-f metal complexes, and highlight an interesting area for potential investigation.

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13

Salazar, Garza Gustavo Adolfo. "Microwave-Assisted Synthesis, Characterization, and Photophysical Properties of New Rhenium(I) Pyrazolyl-Triazine Complexes." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc28473/.

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The reaction of the chelating ligand 4-[4,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)-1,3,5-triazin-2-yl]-N,N-diethyl-benzenamine, L, with pentacarbonylchlororhenium by conventional heating method produces the complexes fac-[ReL(CO)3Cl2] and fac-[Re2L(CO)6Cl2] in a period of 48 hours. The use of microwaves as the source of heat and the increase in the equivalents of one of the reactants leads to a more selective reaction and also decreases the reaction time to 1 hour. After proper purification, the photophysical properties of fac-[ReL(CO)3Cl] were analyzed. The solid-state photoluminescence analysis showed an emission band at 628 nm independent of temperature. However, in the solution studies, the emission band shifted from 550 nm in frozen media to 610 nm when the matrix became fluid. These results confirm that this complex possess a phenomenon known as rigidochromism.

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14

Shipley, Christopher Patrick. "Luminescence properties of europium, iridium and rhenium complexes : a physical and theoretical study." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419545.

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15

Ranieri, Anna Maria. "Complessi tetrazolici di Re(I): design e preparazione di una nuova classe di probes luminescenti." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8990/.

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In this experimental work we report the design, the synthesis and characterization of a new class of Re(I) complexes of the general formula fac-[Re(CO)3(N^N)(2-QTZ)], where N^N = 2,2’ bipyridine or 1,10 phenantroline, whereas 2-QTZ is the anion 2-quinolyl-tetrazolate. The complexes and, in particular, the tetrazolate ligand 2-QTZ were designed in order to investigate their specific interaction with biologically and toxicologically relevant metal ions, as Zn(II), Cd(II) e Cu(II). The addition of such ions led to substantial variations of the photophysical properties of these complexes, suggesting their application as luminescent sensors. The photophysical performance of the complexes proved to remain unchanged inside cellular substrates, as Yarrowia Lipolytica cultures. Within these yeasts, the complexes show unchanged ability to perform luminescent sensing towards Zn(II) and Cd(II) ions.

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16

Hostachy, Sarah. "Rhenium tricarbonyl complexes for the labelling and multimodal imaging of peptides and proteins." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066426/document.

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L'imagerie a pris une importance croissante dans l'étude des processus biologiques. L'utilisation de la microscopie de fluorescence a notamment favorisé le développement de nombreuses molécules sondes pour le marquage et la visualisation de biomolécules en milieu biologique complexe. D'autre part, des techniques d'imagerie complémentaires émergent, comme la microspectroscopie infrarouge. Les complexes organométalliques ont un potentiel important comme outils pour l'imagerie biologique, car ils peuvent combiner sur un même cœur moléculaire des propriétés permettant leur détection par différents types d'imagerie. En particulier, des complexes rhénium tricarbonyl ont été utilisés comme sondes pour l'imagerie multimodale. Ces " SCoMPIs " (Single Core Multimodal Probes for the Imaging) sont luminescents et présentent des signaux infrarouge et de fluorescence X intenses et qui permettent leur détection spécifique en milieu biologique. Dans cette étude, nous nous sommes intéressés aux possibilités d'imagerie multimodale de peptides et de protéines exogènes ou endogènes. Différents SCoMPIs ont été préparés et caractérisés, permettant le marquage N-terminal de peptides, le marquage d'une protéine exogène (homéodomaine) via une réaction thiol-maléimide ou le marquage par affinité d'une protéine endogène (anhydrase carbonique). L'évolution des propriétés de luminescence de SCoMPIs en fonction de l'environnement a été étudiée. Les imageries de luminescence et infrarouge ont permis la détection des peptides en contexte cellulaire, mais pas des protéines marquées avec des SCoMPIs. En revanche, il a été possible de détecter ces faibles quantités par microspectroscopie de fluorescence X
Bioimaging is now widely used for the study of biological processes. The expansion of fluorescence microscopy has led to the development of small chemical probes for the labelling and imaging of biomolecules in complex biological environments. Alternative imaging techniques, such as infrared microspectroscopy, are also emerging. Organometallic complexes have a great potential as tools for bioimaging, since they can combine on a single molecular core properties enabling their detection by various imaging techniques. In particular, rhenium tricarbonyl complexes have been used for multimodal imaging. These “SCoMPIs” (Single Core Multimodal Probes for the Imaging) are luminescent and exhibit intense, specific infrared and X-ray fluorescence signals, which make possible their multimodal detection in biological media. In this study, we focused on the possibility to perform the multimodal imaging of SCoMPI-labelled peptides and proteins in cells. Various SCoMPIs were prepared and characterized, that were suitable for N-terminal labelling of peptides, labelling of an exogenous protein (homeodomain) through thiol-maleimide labelling, or the affinity-guided labelling of endogenous proteins (carbonic anhydrases). Dependance on the luminescence properties of SCoMPIs with their environment was investigated. SCoMPI-labelled peptides could be easily detected by luminescence and infrared imaging, which was not the case for SCoMPI-labelled proteins. However, it was possible to detect these small amounts of proteins by X-ray fluorescence microspectroscopy

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17

Lam, Siu-tung, and 林肇東. "Design and syntheses of alkynylrhenium (I) tricarbonyl diimine complexes: from luminescence to metallogelformation, chemosensing, molecular architecture and light-harvesting." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45826766.

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18

Lam, Chan-fung. "Synthesis, optical and luminescence studies of rhenium(I) diimine alkynyl complexes and their utilization as building blocks for the assembly of multinuclear and mixed-metal complexes." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B32010564.

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19

Salazar, Garza Gustavo Adolfo. "Microwave-Assisted Synthesis and Photophysical Properties of Poly-Imine Ambipolar Ligands and Their Rhenium(I) Carbonyl Complexes." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1011818/.

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The phenomenon luminescence rigidochromism has been reported since the 1970s in tricarbonyldiimine complexes with a general formula [R(CO)3LX] using conventional unipolar diimine ligands such as 2,2;-bipyridine or 1,10-phenanthroline as L, and halogens or simple solvents as X. As a major part of this dissertation, microwave-assisted synthesis, purification, characterization and detailed photoluminescence studies of the complex fac-[ReCl(CO)3L], 1, where L = 4-[4,6-bis(3,5-dimethyl-1H-pyrazol-1-yl]-N,N-diethylbenzenamine are reported. The employment of microwaves in the preparation of 1 decreased the reaction time from 48 to 2 hours compared to the conventional reflux method. Stoichiometry variations allows for selective preparation of either a mononuclear, 1, or binuclear, fac-[Re2Cl2(CO)6], 2, complex. The photophysical properties of 1 were analyzed finding that it possesses significant luminescence rigidochromism. The steady state photoluminescence emission spectra of 1 in solution shift from 550 nm in frozen media to 610 nm when the matrix becomes fluid. Moreover, a very sensitive emission spectral analysis of 0.1 K temperatures steps shows a smooth transition through the glass transition temperature of the solvent host. Furthermore, synthetic modifications to L have attained a family of ambipolar compounds that have tunable photophysical, thermophysical and other material properties that render them promising candidates for potential applications in organic electronics and/or sensors - either as is or for their future complexes with various transition metals and lanthanides.

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20

Lam, Chan-fung, and 林親鳳. "Synthesis, optical and luminescence studies of rhenium(I) diimine alkynyl complexes and their utilization as building blocks for theassembly of multinuclear and mixed-metal complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B32010564.

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21

Li, Meijin. "Design, synthesis and characterization of ruthenium(II) and rhenium(I) complexes with functionalized ligands for photo-and electrochemi- luminescence, solvatochromism, molecular recognition and HPLC separation studies." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36584435.

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22

Li, Meijin, and 李梅金. "Design, synthesis and characterization of ruthenium(II) and rhenium(I)complexes with functionalized ligands for photo-and electrochemi-luminescence, solvatochromism, molecular recognition and HPLCseparation studies." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B3775726X.

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23

Wedding, Jason Lee. "Application of Synchrotron-Based Spectroscopic Techniques XAS and XFM Towards Probing the Cellular Metallome." Thesis, 2019. http://hdl.handle.net/2440/120496.

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The use of synchrotron-based experimental techniques has gained increasing recognition, as they are powerful tools to explore the cellular metallome. Metallomics, which encompasses all aspects of biological systems, especially the cell, involved in metal speciation and metabolism; and probes the spatial metal ion distributions within differing cell types, organelles and regulating proteins. As such, the precise imaging of metal ion and intracellular organelle distribution within the wider context of cellular regulation pathways and biological function is essential. Biological systems are inherently complex, with the metal of interest being contained within an intricate biological matrix. Synchrotron-based techniques have benefits that laboratory-based fluorescence experiments do not; reduced required sample preparation, direct metal distribution imaging, and the ability to characterise the chemical nature of the intracellular metal pool. This thesis describes the use of two synchrotron-based techniques; X-ray absorption spectroscopy (XAS) and X-ray fluorescence microscopy (XFM), to investigate the effects of biometal-based agents on the intracellular metallome. Firstly, the intracellular fate of a luminescent rhenium(I) tricarbonyl tetrazolato complex probe within 22Rv1 human prostate epithelial carcinoma cells was explored. It was demonstrated that the cellular distribution of the luminescent imaging agent could be determined by monitoring the luminescence from the compound using optical microscopy and then correlated with the cellular distributions of rhenium and iodine contained in the species within the same samples as measured using microprobe XFM. A combination of XAS and XFM was employed to investigate the neuroprotective action purported for diphenyl diselenide. This was achieved by treating SH-SY5Y human neurocarcinoma epithelial cells with more water soluble diphenyl diselenide analogues; bis(2-aminodiphenyl)diselenide and bis(2-nitrodiphenyl)diselenide. These two studies showcased that the advantageous, simultaneous collection of metallome and mode of action information can provide a pathway to exploring neurological diseases and disorders, the production of better therapeutic agents, and could be used diagnostically in medicine. Finally, the anticancer action of NKP-1339, a KP1019 analogue, within A549 human lung adenocarcinoma epithelial cells was investigated. Initially a co-localisation of NKP-1339, or its ruthenium-containing metabolites, with intracellular iron and copper was observed. Subsequent attempts to visualise a mitochondrial compartmentalisation of the NKP-1339 or its ruthenium-based metabolites utilising a combination of optical and synchrotron-based fluorescence microscopy were unsuccessful. The studies into the Re-I probe and diphenyl diselenide analogues showcased the power of synchrotron-based spectroscopic techniques yielding mode-of-action information as well as visualising the effects of the biometal-containing agents on the intracellular metallome. The study into NKP-1339, while largely unsuccessful, did provide similar information related to the perturbation of the intracellular metallome while not yielding mode-of-action information.
Thesis (Ph.D.) -- University of Adelaide, School of Physical Sciences, 2019

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