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Dissertations / Theses on the topic 'Lanthanons complexes'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Milne, Paul Edward Young. "Polynuclear copper-lanthanoid complexes of pyridone ligands." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/15394.

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The crystal structures of several copper and mixed copper-lanthanoid complexes are reported, using the 6-chloro and 6-methyl derivatives of 2-pyridone as a ligand. With 6-chloro-2-pyridone, a novel dimeric copper complex results, which has been structually and physically studied. This species, under certain conditions, exhibits a dissociation reaction which has been examined using U.V.-vis. and E.P.R. spectroscopy and by cyclic voltammetry. Reaction of this dimeric copper compound with methanol and ethylene glycol results in the formation of tetranuclear and polymeric copper complexes respecti

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2

D'Alessio, Daniel Mark. "Lanthanoid complexes of tetrazolyl-functionalised Calix[4]arenes." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/853.

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Syntheses of the bis-, tris- and tetra-tetrazolato calix[4]arene ligands were performed from their corresponding nitrile derivatives. Mono-nuclear lanthanoid complexes were characterised in the presence of triethylamine, while addition of aqueous ammonium acetate resulted in the formation of an unprecedented discrete linear nineteen lanthanoid hydroxo cluster (Ln19). It was found the length of the cluster could be altered to an Ln12 structure, while retaining an identical cluster motif, by simply replacing ammonium acetate with ammonium benzoate.

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3

Abad, Galán Laura. "Exploring the Chemistry of Lanthanoid β–Triketonate Complexes". Thesis, Curtin University, 2018. http://hdl.handle.net/20.500.11937/70485.

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This thesis reports the design, synthesis and characterisation of new β-triketonate based lanthanoid complexes. The use of systematically modified β-triketone molecules as ligands for these f-metal ions and their effect on the structural and photophysical properties of the complexes were investigated in detail. This study allowed a better understanding of the relationship between structure and photophysical activity of the lanthanoid complexes and the isolation of unusually efficient near-infrared emitters.

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4

Haddad, Timothy Samir. "Phosphine complexes of zirconium, hafnium and the lanthanoid metals." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31012.

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The synthesis of a variety of new lanthanoid phosphine complexes has been achieved by complexing either one or two amido-diphosphine ligands to yttrium, lutetium or lanthanum. At room temperature, the seven-coordinate bis(amido- diphosphine) complexes, MCl[N(SiMe₂CH₂PR₂)₂]₂- are fluxional and display NMR spectra indicative of complexes where the phosphorus donors are rapidly exchanging, probably via a dissociation-reassociation pathway. It is possible to generate thermally unstable hydrocarbyl complexes of the type, M(R)[N(SiMe₂CH₂PMe₂)₂]₂, which undergo a clean first order elimination of

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5

Fisher, Christopher Martin. "Macrocyclic Lanthanoid complexes: luminescence studies and potential for bioconjugation." Thesis, University of Hull, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507815.

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6

Scott, Natalie M(Natalie Maree) 1976. "Diverse lanthanoid and lithium complexes with pendant donor amide ligands." Monash University, Dept. of Chemistry, 2001. http://arrow.monash.edu.au/hdl/1959.1/8984.

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7

Shen, Chao. "Structural and Photophysical Investigation of Lanthanoid Complexes of Calixarene-Based Antenna Ligands." Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/89264.

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This thesis presents investigations into structural and photophysical properties of naphthalenetetracarboxylic diimide (NDI) functionalised calixarenes and their corresponding lanthanoid complexes. Six new calixarene ligands were synthesied and fully characterised. Upon complexation, europium (III), ytterbium(III) and neodynium(III) luminescence can be induced by energy transfer from the NDI of ligand and/or calixarene aromatic backbone. The reduction of neutral NDI to NDI radical anion was successful, and the NDI radical anion also sensitised ytterbium(III) luminescence.

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8

Cameron, Lee John. "Shedding Light on the Structural and Luminescent Properties of Lanthanoid β-Triketonate Complexes". Thesis, Curtin University, 2019. http://hdl.handle.net/20.500.11937/78465.

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This thesis presents research centred around the structural and photophysical characterisation of ß-diketonate and ß-triketonate lanthanoid complexes. The overarching goal was to identify the effect of different co-ligands in lanthanoid complexes. 25 new complexes featuring six different ß-diketonate and ß-triketonate ligands, and four different co-ligands were isolated and characterised. The synthesis of a novel ß-triketonate molecule, bis-tribenzoylmethane, is presented, along with the first reported crystallographically characterised lanthanoid complex with bis-dibenzoylmethane coordinated.

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9

Hossain, Md Elius. "Lanthanoid formamidinates and halogenoaluminate complexes of the rare earths and alkaline earths: synthesis and reactivity." Thesis, Springer, 2017. https://researchonline.jcu.edu.au/57687/1/JCU_57687-hossain-2017-thesis.pdf.

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This thesis focuses on the synthesis and characterisation of halogenoaluminate π-arene complexes of rare earths and alkaline earths and compares the similarities between the two groups of metals. This thesis also discusses the reactivity of divalent rare earth N,N′- bis(aryl)formamidinate (ArForm) complexes. Study of the synthesis of halogenoaluminate π-arene complexes of rare earths has yielded several new complexes containing η⁶-arene, [Ln(arene)(AlX₄)ₙ] (Ln = La, Ce, Pr, Nd, Gd, Sm, Eu, Yb; arene = toluene, mesitylene; X = Br, I; n = 2, 3). Divalent compounds of Sm, Eu and Yb have lattic

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10

Chan, Eric J. "Structural systematics of complexes of lanthanoid picrates with unidentate O-donor ligands and other related arrays." University of Western Australia. School of Biomedical, Biomolecular and Chemical Sciences, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0075.

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Structures as determined by single crystal X-ray methods for lanthanoid(III) compounds for series of simple homoleptic species with diverse ligands frequently display variations entailing a diminution in coordination number (‘C.N.’), a consequence of the variation in the size of the atoms/ions due to the ‘lanthanoid contraction’. A change from C.N. nine to eight is common, clearly separating compounds of the light/‘early’ or heavy/‘later’ metal atoms. Earlier work on the complexes of the lanthanoid(III) picrates arose out of the exploration of simple reagents which might usefully exploit lanth

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11

Chmela, Jiří [Verfasser], and W. M. [Akademischer Betreuer] Klopper. "Theoretical Optical Spectroscopy of Polynuclear Transition Metal and Lanthanoid Complexes / Jiří Chmela ; Betreuer: W. M. Klopper." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1124902945/34.

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12

Bellucci, Luca. "Thermometers at the Nanoscale: a Molecular Approach to Design and Develop Functional Lanthanoid-based Luminescent Materials." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3422334.

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The present work is devoted to the development of lanthanoid-based luminescent thermometers and to the study of the correlations between the thermometric properties and the different building blocks composing the systems. In particular, using rare earth cations, b-diketones (H(b-dike)= dibenzoylmethane, Hdbm; benzoyltrifluoroacetone, Hbta; hexafluoroacetylacetone, Hhfac; thenoyltrifluoroacetone, Htta), and divergent ligands (4,4’-bipyridine, bipy; 4,4’-bipyridine-N-oxide, bipyMO; pyrazine-N-oxide, pyrzMO; 2,5-dihydroxy-1,4-dicarboxylate, H2DHT2-) we prepared molecular systems with different di

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13

Kintzel, Benjamin [Verfasser], Winfried [Gutachter] Plass, Robert [Gutachter] Kretschmer, and Eva [Gutachter] Rentschler. "3d transition metal and Lanthanoid complexes of tritopic C3-symmetric ligands as molecular magnets to advance the basis for quantum technologies / Benjamin Kintzel ; Gutachter: Winfried Plass, Robert Kretschmer, Eva Rentschler." Jena : Friedrich-Schiller-Universität Jena, 2021. http://d-nb.info/1239177488/34.

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14

Döring, Christian [Verfasser]. "Aminopyridinato-ligand-stabilized lanthanoid complexes : synthesis, reactivity, ethylene and isoprene polymerization / vorgelegt von Christian Döring." 2009. http://d-nb.info/998305766/34.

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15

Hofmeister, Anja. "Synthese und Charakterisierung von Verbindungen der Lanthanoide mit σ-gebundenen Liganden". Doctoral thesis, 2008. http://hdl.handle.net/11858/00-1735-0000-0006-ACAE-E.

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