Relevant bibliographies by topics / Few clusters

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  1. Dissertations / Theses

Academic literature on the topic 'Few clusters'

Author: Grafiati
Published: 11 March 2023

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Dissertations / Theses on the topic "Few clusters"

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Kanyuk, M., A. P. Demchenko, I. Díez, and R. H. A. Ras. "Fluorescent Few-Atom Clusters of Silver Formed in Organic Solvents on Polymeric Supports." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35122.

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Few-atom silver clusters are fluorophores with a set of attractive properties including sub-nanometer size, high quantum yield and large Stokes shift. Sharing high photostability with semiconductor quantum dots but being of much smaller size, lacking blinking and with expected lack of toxicity, they are especially attractive for biological imaging, down to single molecules. No less promising are their applications in chemical sensing and biosensing as well as for molecular optic and electronic devices on a single molecular level. We demonstrate that it is not a unique property of water th
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RICHERT, JEAN-LUC. "Synthese et reactivite de clusters heterometalliques palladium-fer et platine-fer." Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR13251.

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Differents clusters mixtes trinucleaires a un ou deux ligands bis(diphenyl)phosphinomethane (dppm) de curs fer-bis platine, platine-bis fer ou palladium-bis fer, sont obtenus par reaction de complexes mononucleaires du platine ou du palladium au degre d'oxydation deux avec des mono- ou dianons carbonylates du fer. Ces reactions ont egalement ete etudiees avec certaines phosphines tertiaires monodentes. Le tetracarbonylferrate disodique reagit avec les composes dinucleaires a deux ligands dppm, palladium-palladium ou platine-palladium pour former selectivement le cluster trinucleaire correspond
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Haider, S. G. "Computational studies of FeS : bulk, surfaces and clusters." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1417501/.

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In this thesis we present the results of our simulation studies of iron sulphide minerals, with focus on bulk, surface and cluster chemistry. DFT+U calculations were employed to study the mineral greigite (Fe3S4), which has important implications in Origin of Life theories. Using a combination of DFT and Monte Carlo methods, we were able to explore the probable cation distribution of Ni-doped greigite over the two available lattice sites (tetrahedral and octahedral) at varying concentrations, as well as calculate the enthalpy of mixing and thus deduce at what concentration of Ni this mineral w
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Zhuang, Hua-Yun. "Reactivity of the aconitase Fe←3S←4'+ cluster." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336310.

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Nuel, Didier. "Etude de la reactivite de fragments alkylidynes dans des clusters trinucleaires du fer." Toulouse 3, 1986. http://www.theses.fr/1986TOU30206.

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Reactivite des complexes fe::(3)(co)::(9)(cch::(3))(coc::(2)h::(5)) ou fe::(3)(co)::(10)(cch::(3))(h). Les reactions de couplage des groupes alkylidynes avec les algues sont faciles. L'action de co a mis en evidence le couplage reversible dans des conditions douces de 2 fragments alkylidynes. En general, la presence du coordinat hydruro rend les reactions plus complexes
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Nuel, Didier. "Etude de la réactivité de fragments alkylidynes dans des clusters trinucléaires du fer." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37600062x.

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Maso, Lorenzo. "Biochemical and spectroscopic analysis of two key proteins involved in FeS-clusters biogenesis." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3427271.

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FeS clusters are ancient prosthetic groups, widely diffused in almost all living beings in which they are involved in several fundamental metabolic pathways, including redox reactions, electron transfer, enzyme catalysis and many other functions. This assortment is reflected in the presence of several FeS clusters with different structures, from the simple rhombic 2Fe2S and cubic 4Fe4S clusters, to the highly complex 2Fe[4Fe4S] H-cluster (metal cofactor of [FeFe]-hydrogenases). Distinct biosynthetic pathways for the assembly of different FeS clusters exist, in both prokaryotic and eukaryotic m
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Kruse, Inga. "The mitochondrial-cytosolic pathway of FeS cluster assembly in Arabidopsis thaliana." Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/62930/.

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The aim of this work was to unravel the molecular basis of the connection of mitochondrial and cytosolic FeS assembly. Following on from previous work showing that the mitochondrial ABC-transporter ATM3 is required for cytosolic FeS assembly (Bernard et al., 2009), one part of my project was to provide in-vivo evidence for the substrate of ATM3. I found that the mitochondrial glutathione pool in atm3 seedlings is shifted towards oxidation, indicating accumulation of oxidised glutathione. Furthermore I showed that ATM3 genetically interacts with two enzymes involved in persulfide metabolism (ET
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HEIM, BERND. "Quelques aspects de la chimie des ynamines rccnet#2 sur des clusters carbonyles du fer." Paris 6, 1992. http://www.theses.fr/1992PA066180.

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Les complexes carbeniques fe#2(co)#7c(r)c(net#2) reagissent avec des ligands organiques insatures. Les complexes formes avec les alcynes rccr(r=net#2; c#2r) resultant d'une insertion dans la fonction fe=c, presentent une structure pyramide pentagonale nido qui peut conduire a des complexes closo de type tripledecker par ajout d'un fragment fe(co)#2. Le passage nido-closo se fait sans modification du couplage. Dans le cas r=c#2r, la triple liaison libre permet de construire des complexes tetranucleaires. Le phosphaalcyne rcp conduit a un couplage c-p par insertion dans le carbene pontant. Avec
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Rodrigues, Guimarães Thiago. "Synthesis of magnetic polymer latex particles by reversible addition-fragmentation chain transfer (RAFT) polymerization in aqueous dispersed media." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1107/document.

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Dans le cadre de ce travail de thèse, la polymérisation de type RAFT a été exploitée pour synthétiser des particules de latex magnétiques décorées de polymères stimulables. Cinq (co)polymères hydrophiles ont tout d'abord été préparés via la (co)polymérisation RAFT en solution d'acide acrylique (AA) et de méthacrylate de 2-diméthylaminoéthyle (MADAME). Les agents macromoléculaires obtenus (macroRAFT) : des homopolymères de PAA ou PMADAME ainsi que des copolymères P(AA-co-MADAME), présentent une sensibilité au pH et à la température. Ces macroRAFT hydrophiles ont ensuite été utilisés dans des ré
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