Log in

Relevant bibliographies by topics / Nickel (II) complexes / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Nickel (II) complexes.

Dissertations / Theses on the topic 'Nickel (II) complexes'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Nickel (II) complexes.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Zhang, Yousheng. "Polynuclear magnetic complexes of manganese(II), cobalt(II), nickel(II) and copper(II)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0014/NQ52856.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Jupp, Kathleen M. "Dynamically sourced intensity in octahedral nickel(II) complexes." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Piga, Francesco. "Magnetostructural correlations in iron(II)- and nickel(II)-based cluster complexes." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604299.

Full text

Abstract:

This thesis presents a study of the magnetic properties of cluster complexes of nickel and iron, with a focus on the relationships between structure and magnetism. Chapter 1 gives an introduction to the concepts involved in molecular magnetism, with particular attention to single-molecule magnets (SMMs). The main types of SMMs are outlined, and the origin of magnetic anisotropy and its role in the single-molecule magnetism phenomena are discussed, as well as the potential applications of SMMs as data storage devices. The chapter also describes the experimental techniques employed for the chara

APA, Harvard, Vancouver, ISO, and other styles

4

Pascu, Sofia I. "Nickel (II), palladium (II), platinum (II) and rhodium (I) complexes of iminophosphine ligands." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270258.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Marques, Maria José. "Electrodes modifiées par électropolymérisation de complexes dibenzotétraaza[14] annulène de nickel(II) et cuivre(II)." Grenoble 1, 1991. http://www.theses.fr/1991GRE10023.

Full text

Abstract:

Ce travail est consacre a la preparation et a la caracterisation d'electrodes modifiees (em) par des films de complexes metalliques des ligands du type tetraaza|14|annulene. Dans un premier temps le comportement electrochimique des complexes monomeres du ni (ii) et du cu (ii) du ligand dibenzotetraaza|14|annulene (ni-tmtaa et cu-tmtaa) a ete etudie. En particulier, nous avons etabli les mecanismes mis en jeu lors de leur electropolymerisation et le role important que jouent les protons liberes lors de ce processus. Ce travail s'est poursuivi par l'etude electrochimique d'une serie de nouveaux

APA, Harvard, Vancouver, ISO, and other styles

6

Doddridge, Bruce Germein. "Ligand exchange and substitution on five-coordinate complexes of copper (II), nickel (II) and cobalt (II) /." Title page, contents and summary only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phd641.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Hameury, Sophie. "Oxygen-functionalized NHC ligands and their nickel(II), silver(I) and palladium(II) complexes." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF010.

Full text

Abstract:

L’objectif de cette thèse portait sur la synthèse de complexes portant un ligand NHC associé à une fonction oxygénée et à leur application en catalyse d’oligomérisation de l’éthylène. Dans le but de synthétiser des complexes avec des ligands NHCalcool, les complexes d’argent correspondants ont été synthétisés et utilisés en transmétallation. Aucun résultat concluant n’a pu être obtenu avec le nickel à cause de l’acidité du proton alcoolique. Mais un ligand NHC-alcoolate a pu être obtenu par déprotonation directe du pro-ligand avec une base forte. Il fut alors possible d’accéder à des complexes

APA, Harvard, Vancouver, ISO, and other styles

8

Charra, Valentine. "Coordination of multidentate N-heterocyclic carbene ligands to nickel." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF019/document.

Full text

Abstract:

Le sujet de cette thèse porte sur la synthèse de ligands de type bis-NHC (carbène N-Hétérocyclique) et leur réactivité vis-À-Vis des complexes d’argent(I), de cuivre(I) et de nickel(II).Après avoir exploré les différentes méthodologies de synthèse des complexes de nickel(II) bis-NHC, le but était de tester leurs activités en catalyse d’oligomérisation de l’éthylène. Une série de nouveaux complexes d’argent(I) et de cuivre(I) fut synthétisée. Cinq voies furent testées pour la formation de complexes de nickel. Les résultats les plus probants furent obtenus par transmétallation à partir des compl

APA, Harvard, Vancouver, ISO, and other styles

9

EDISON, SARA ELIZABETH. "INVESTIGATION OF NICKEL (II)-OXIMATE COMPLEXES THAT REACT WITH MOLECULAR OXYGEN." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085526904.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Nelwamondo, Aubrey Ndifelani. "Solid state thermal decomposition of amide complexes of nickel(II) chloride." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005008.

Full text

Abstract:

The thermal decompositions of a series of amide complexes of nickel(II) chloride have been studied. Thermochemical, kinetic, structure and solid-state stability correlations have been investigated. Complexes containing homologous amide ligands (L) of the form NiLCℓ₂, Ni₃L₂Cℓ₆, Ni₃LCℓ₆, NiL₂Cℓ₂(2H₂0) and ML₂Cℓ₂ (where M = Ni(II), Co(II) or Cu(II)) have been prepared. Chemical analysis, spectral and thermogravimetric measurements were used to characterize the complexes and their decomposition stoichiometries. Three sets of reactions were identified as yielding stable products in a single step: (

APA, Harvard, Vancouver, ISO, and other styles

11

Edison, Sara E. "Invesitgation of nickel(II)-oximate complexes that react with molecular oxygen." Cincinnati, Ohio : University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1085526904.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Perry, Richard John. "Structural studies on high oxidation state nickel complexes and their nickel(II) precursors using EXAFS spectroscopy." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358484.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Jouini, Mohamed. "Etude physico-chimique de complexes peptidiques du cuivre (II) et du nickel (II) en solution." Paris 7, 1985. http://www.theses.fr/1985PA077054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Olivieri, Diego <1992&gt. "Bis-Alkoxycarbonylation And Difunctionalization Of Alkenes Employing Palladium(II) Or Nickel(II) Complexes As Catalysts." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amsdottorato.unibo.it/9216/1/Olivieri_Diego_Tesi.pdf.

Full text

Abstract:

Section 1 is focused on the bis-alkoxycarbonylation reaction of olefins, catalyzed by aryl α-diimine/Pd(II) complexes, for the synthesis of succinic acid ester derivatives, important compounds in many industrial fields. The opening chapter (Chapter 1) of this thesis presents an overview of the basic chemistry of organopalladium compounds and carbonylation reactions, focusing on oxidative bis-alkoxycarbonylation processes. In Chapter 2 the results obtained in the bis-alkoxycarbonylation of 1,2-disubstituted olefins are reported. The reaction proceeds under very mild reaction conditions, using

APA, Harvard, Vancouver, ISO, and other styles

15

OLIVEIRA, MARIA STELLA NUNES DE. "SYNTHESIS AND CHARACTERIZATION OF COMPLEXES INVOLVING POLYAMINES AND THE METAL IONS ZINC (II), NICKEL (II) AND PALLADIUM (II)." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2010. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=16447@1.

Full text

Abstract:

PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>O presente trabalho descreve a síntese e a caracterização de treze complexos envolvendo as poliamina etilenodiamina, diaminopropano, diaminobutano, espermidina e espermina e os íons metálicos Zn (II), Ni (II) e Pd (II). Todas as sínteses foram realizadas em água, um solvente de importância biológica, e em condições próximas às fisiológicas, com o objetivo de mimetizar as ligações e compreender como ocorre a interação das poliaminas com ânions no ciclo biológico, haja vista que em pH fisiológico essas moléculas se encontram primordialmente n

APA, Harvard, Vancouver, ISO, and other styles

16

Henrion, Mickaël. "Synthesis and homogeneous catalytic applications of nickel(II)-N-heterocyclic carbene complexes." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF057/document.

Full text

Abstract:

Une étude détaillée a été effectuée sur des composés organométalliques de carbènes N-hétérocycliques (NHC) de nickel(II), et plus particulièrement sur des complexes demi-sandwich nickel(II)−NHC. Ces complexes ont montré des activités sans précédent en catalyse homogène, notamment en α-arylation de cétones acycliques, où des charges en pré-catalyseur de seulement 1 mol% ont pu être utilisées. L' étude mécanistique de cette réaction tend à montrer l'implication d'intermédiaires radicalaires. De plus, ces complexes demi-sandwich se sont révélés être des pré-catalyseurs performants en hydrosilylat

APA, Harvard, Vancouver, ISO, and other styles

17

Fraze, Kendra Eileen. "Synthesis, electrochemistry, and thermodynamics of mononuclear and dinuclear nickel(II) diphosphine complexes." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3273652.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Moore, Nichola Sian. "Studies of nickel (II) diphosphine complexes directed towards carbon monoxide/ethene catalysis." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4832/.

Full text

Abstract:

The thesis is concerned with the synthesis, characterisation and reactivity of a variety of nickel(II) diphosphine complexes considered possible catalyst precursors for the copolymerisation of CO and ethene. [Ni(diphos)(o-tolyl)(py)]Y (1), [Ni(diphos)(_2)](Y)(_2) (2), and [Ni(diphos)(S)(_2)](Y)(_2) (3) {Y = OTs, OTf} are found to be catalyst precursors for the CO/ethene reaction (115 C, 1200psi, 1:1 CO: ethene) with high selectivity to polyketone formation, the activity depending on the phosphine ligand employed. However, the activity is low and attributed in part to the formation of the [Ni(d

APA, Harvard, Vancouver, ISO, and other styles

19

Hudson, Joshua M. Omary Mohammad A. "Photophysical studies of silver(I), platinum(II), palladium(II), and nickel(II) complexes and their use in electronic devices." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5165.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

GOLDCAMP, MICHAEL JOSEPH. "DEVELOPMENT OF NICKEL (II) COMPLEXES OF OXIME CONTAINING LIGANDS FOR THE ACTIVATION OF DIOXYGEN." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1028824928.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Hudson, Joshua M. "Photophysical studies of silver(I), platinum(II), palladium(II), and nickel(II) complexes and their use in electronic devices." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc5165/.

Full text

Abstract:

This dissertation deals with two major topics that involve spectroscopic studies of (a) divalent group 10 metals and (b) silver(I)-phosphine complexes. The scope of the work involved the delineation of the electronic structure of these complexes in different environments and their use in electronic devices. The first topic is a look at the luminescence of tetrahedral silver(I)-phosphine complexes. Broad unstructured emissions with large Stokes shifts were found for these complexes. Computational analysis of the singlet and triplet state geometries suggests that this emission is due to a Jahn-T

APA, Harvard, Vancouver, ISO, and other styles

22

Bonifacio, Rodrigo Leandro. "Estudos espectrofotométricos e por quimiluminescência da autoxidação de complexos de Ni(II) ou Cu(II)/tetraglicina induzida por S(IV). Aplicações analíticas." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/46/46133/tde-27092006-215956/.

Full text

Abstract:

O presente trabalho apresenta estudos da reação de autoxidação de Ni(II)/tetraglicina ou Cu(II)/tetraglicina induzida por S(IV). Estudos espectrofotométricos enfocaram a formação do respectivo íon metálico no estado de oxidação 3+. Verificou-se que S(IV) acelera a autoxidação de Ni(II)/tetraglicina em pH=9,2 (tampão borato), com a determinação de alguns parâmetros cinéticos desta reação. A autoxidação de Cu(II)/tetraglicina induzida por S(IV), caracterizada por efeito sinérgico positivo de Ni(II), foi empregada no desenvolvimento de método analítico para S(IV) na faixa de (0-0,12) milimolar. E

APA, Harvard, Vancouver, ISO, and other styles

23

Britton, A. M. "Complexes of heterocyclic thiones and thiolates with nickel (II) and the platinum metals." Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383557.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Gilligan, Julie Victoria. "Preparation and characterisation of some nitrogen and oxygen donor-ligand complexes of nickel(II)." Thesis, University of Salford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Goldcamp, Michael Joseph. "Development of nickel(II) complexes of oxime containing ligands for the activation of dioxygen." Cincinnati, Ohio : University of Cincinnati, 2002. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1028824928.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Boujday, Souhir. "Interaction des complexes aminés du nickel (II) et des halogénoplatinates (IV) avec la silice : vers une reconnaissance moléculaire aux interfaces." Paris 6, 2002. http://www.theses.fr/2002PA066049.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Paraginski, Vanessa Teixeira Kunz. "Síntese e caracterização de complexos organometálicos de Cu(I), Cu(II) e Ni(II) com ferroceno-triazenos e triazenido de Hg(II) com interação Metal-Areno-Pi." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/12416.

Full text

Abstract:

This Thesis aimed the synthesis of new metal complexes with triazenido ligands and triazenes chains directly linked to ferrocene fragment by a new synthesis methodology. The complex bis-[1,3-bis(2-biphenyl)triazenido-κN1]mercury(II) was synthesized, melting point 222–224 °C and yield 82 %, characterized by IR, UV-Vis, 1H e 13C RMN, elemental analysis, mass spectrometry by ESI(+)TOF, single crystal x-ray diffraction. The triazenes 1,1’-bis[1-phenyl-3(H)triazene]ferrocene (Compound 1) and 1,1’-bis(benzo-1,2,3-triazol-1-phenyltriazene)ferrocene (Compound 6) were synthesized by ferrocene metalatio

APA, Harvard, Vancouver, ISO, and other styles

28

El, Ghachtouli Sanae. "Caractérisation, étude thermodynamique et structurale de complexes tétraazamacrocycliques porteurs de groupements pyridine ou pyrazine." Reims, 2007. http://theses.univ-reims.fr/exl-doc/GED00000535.pdf.

Full text

Abstract:

L’objectif poursuivi au cours de ce travail est l’étude de l’influence des paramètres structuraux de complexes mono- et bistétraazamacrocycles de cuivre et de nickel sur leurs propriétés électroniques. Les ligands développés dans ce but sont des cyclens et cyclams monoN-fonctionnalisés par des groupements de type pyridine ou des bismacrocycles basés sur des cavités cyclen ou cyclam séparées par des liens de type pyridine ou pyrazine. L’influence de la présence d’atomes coordinants exomacrocycliques sur les caractéristiques stéréochimiques et électroniques des complexes a ainsi été évaluée. Dan

APA, Harvard, Vancouver, ISO, and other styles

29

Xiao, Lan. "Etude physico-chimique de la complexation de divers ions metalliques (cu**(2+), ni**(2+) et co**(2+)) avec des dipeptides l-l contenant des chaines laterales non-coordinantes." Paris 7, 1988. http://www.theses.fr/1988PA077170.

Full text

Abstract:

Stabilite des complexes en fonction de l'interaction des chaines laterales du dipeptide et le solvant. Mesures potentiometriques calorimetriques, caracterisation spectrometrique et structure moleculaire

APA, Harvard, Vancouver, ISO, and other styles

30

Ben, Nasr Chérif. "Complexation du nickel (II) et des lanthanides (III) par des phosphoramides bidentes : Application à l'extraction liquide-liquide." Nancy 1, 1986. http://www.theses.fr/1986NAN10032.

Full text

Abstract:

Les composés de type (NME::(2))::(2)P(O)NRP(O)(NME::(2))::(2) complexent fortement lésions métalliques et peuvent être utilisés en tant qu'agents extractaires dans l'extraction liquide liquide. Synthèse systématique des complexes lanthanides-NDA. L'étude RMN a permis également de trier les contributions de contact et de pseudo-contact au déplacement paramagnétique des protons et des phosphores du ligand engagé dans le complexe et d'obtenir des informations concernant la structure des complexes en solution. Enfin, le problème de l'extraction liquide-liquide des lanthanides par le NIPA dans le n

APA, Harvard, Vancouver, ISO, and other styles

31

Malic, Nino 1974. "5,7,12,14-tetramethyldibenzo[b,i]-1,4,8,11-tetraazacyclotetradecine-nickel(II)ester derivatives and supramolecular complexes with ionic substrates /." Monash University, Dept. of Chemistry, 2002. http://arrow.monash.edu.au/hdl/1959.1/8331.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

PETIT, JEAN-FRANCOIS. "Les squarates de lanthanoides : synthese, structure, comportement thermique et proprietes optiques, synthese et structure de dithiosquarates bimetalliques de nickel (ii) et de cerium (iii)." Toulouse 3, 1988. http://www.theses.fr/1988TOU30133.

Full text

Abstract:

Cinq familles de composes isotypes ont ete identifiees en milieu aqueux. Etude radiocristallographique, comportement thermique dans differentes atmospheres, preparation du squarate de cerium anhydre et de trois nouvelles phases hydratees. Etude spectrometrique du derive de l'europium

APA, Harvard, Vancouver, ISO, and other styles

33

Reid, Amanda Julietta. "X-ray crystallographic studies of organometallic complexes and the determination of the structure of nickel (II) insulin." Thesis, Liverpool John Moores University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262263.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Ulm, Franck. "Synthèse et applications de complexes de nickel(II) pour l’optimisation et la compréhension des réactions d’hydrofonctionnalisation et d’activation C–H." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAF043.

Full text

Abstract:

La première étude nous a permis d’établir que [NiCp*Cl(IMes)] possédait une bonne activité pour la réaction d’hydroboration du styrène mais aussi que la nature du borane utilisé avait une forte influence sur la régiosélectivité de l’addition. L’optimisation des conditions nous a ensuite mené à évaluer l’étendue du champ réactionnel avec HBPin et HBCat. En outre, à la suite d’expériences mécanistiques et de l’isolation d’une espèce de Ni(I), nous avons été en mesure de proposer un mécanisme considérant tous les résultats. La seconde étude sur l’hydrosilylation d’aldéhydes et de cétones a mis en

APA, Harvard, Vancouver, ISO, and other styles

35

Deb, Tapash K. "Bioinspired Redox Active Pseudotetrahedral Ni(II) Thiolate and Phenolate Complexes: Synthesis, Characterization, Alkylation Kinetics and Molecular Oxygen Activation." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1377256181.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Romo, Fernández Juan Manuel. "Stereoselective reactions of N-acyl thiazolidinethiones with trimethyl orthoformate, acetals and diarylmethyl ethers catalyzed by nickel(II) complexes." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/301278.

Full text

Abstract:

In this Doctoral Thesis a new stereoselective Ni(II)–mediated catalytic system for the SN1–like addition of chiral Nacyl thiazolidinethiones to electrophiles able to deliver cationic species under acidic conditions has been developed. Importantly, the nickel(II) complexes used along our studies are structurally simple, commercially available and easy to handle. These complexes coordinate to thioimides to generate an intermediate that, after deprotonation, afford a putative nickel(II) enolate, which is the real nucleophile. In Chapter 1, a totally stereoselective addition of Nacyl thiazol

APA, Harvard, Vancouver, ISO, and other styles

37

Van, der Molen Lynndal. "Spontaneous metathesis of bis-chelated PdII(L-S,O)2 complexes in solution : a rp-HPLC study." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/2605.

Full text

Abstract:

Thesis (MSc (Chemistry and Polymer Science))--Stellenbosch University, 2008.<br>N,N-dialkyl-N-acyl(aroyl)thiourea ligands form stable chelated complexes in a cis configuration with the platinum group metals. Such chelated complexes are generally considered substitutionally “inert” in solution, however, it was found that cis-bis(N,Ndialkyl- N-acyl(aroyl)thioureato)M(II) complexes (M = Ni(II), Pd(II) or Pt(II)) readily undergo facile chelate metathesis reactions in solution at room temperature. Upon mixing two different parent complexes, a mixed-ligand product formed in solution, with an e

APA, Harvard, Vancouver, ISO, and other styles

38

Domergue, Jérémy. "Modulation de l'activité SOD par contrôle de la sphère de coordination du Ni(II) dans des complexes bioinspirés." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAV023.

Full text

Abstract:

Le superoxyde O2●- est une espèce réactive de l’oxygène produite par de nombreux métabolismes chez les espèces vivant en condition aérobie. Ses propriétés radicalaires font de O2●- une espèce très réactive capable d’endommager les macromolécules présentes dans les cellules, conduisant entre autre au stress oxydant et à de possibles troubles neurodégénératifs. Pour se protéger, la Nature utilise des enzymes, appelées superoxydes dismutases (SOD), qui sont chargées de catalyser la dismutation du superoxyde en oxygène et peroxyde d’hydrogène. La dernière qui fut découverte est la NiSOD qui compor

APA, Harvard, Vancouver, ISO, and other styles

39

Zakhia, Georges. "Synthèse, caractérisation et propriétés magnétiques de nano-aimants moléculaires." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112071.

Full text

Abstract:

Dans la première partie de ce travail de thèse, nous nous sommes intéressé à l’étude de l’anisotropie magnétique au sein de complexes mononucléaires de Ni(II) et de Co(II) pentacoordinés de géométrie allant de la pyramide à base carrée jusqu’à la bipyramide trigonale. Pour les complexes mononucléaires, nous avons montré que pour une géométrie donnée, la nature de l’ion métallique a une influence importante sur l’anisotropie magnétique.Nous avons étudié l’effet de la géométrie pour un même ion métallique. Dans le cas d’une géométrie bipyramidale trigonale (symétrie C3v), nous avons montré que l

APA, Harvard, Vancouver, ISO, and other styles

40

Hallale, Oren. "Progressive design and self-assembly of supramolecular architectures : based on metallamacrocyclic nickel(II) complexes with bipodal tetra-alkylaroylbis (thioureas)." Doctoral thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/6310.

Full text

Abstract:

Includes bibliographical references.<br>Rationally designed bipodal3,3,3',3'-tetraalkyl-l,1'-benzoylbis(thioureas) are used as pre-programmed cheiating ligands to form metallamacrocyclic square planar nickel(ll) complexes via self-assembly. Metal : ligand stoichiometries of either 2:2 or 3:3 can be achieved by using meta- or para- substituted ligands. The metallamacrocyclic complexes are subsequently converted into octahedral adducts via the addition of monodentate nitrogen donor ligands. Metallamacrocycles are further employed as secondary building units in the self-assembly of I-dimensional

APA, Harvard, Vancouver, ISO, and other styles

41

JONES, REBECCA MARIE. "UNITING EXPERIMENT AND THEORY: THE DEVELOPMENT AND APPLICATION OF THEORETICAL MOLECULAR MODELS TO NICKEL(II)TRIS(OXIME)AMINE COMPLEXES." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1084753268.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Jones, Rebecca M. "Uniting experiment and theory the development and application of theoretical molecular models to nickel(II) tris(oxime)amine complexes /." Cincinnati, Ohio : University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1084753268.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Soibinet, Mathieu. "Complexes du cuivre (II), nickel (II) et cobalt (III) avec des ligands bis macrocycliques dérivés du cyclam et du cyclen : Synthèse, études thermodynamique et structurale." Reims, 2002. http://www.theses.fr/2002REIMS023.

Full text

Abstract:

Des ligands bis-macrocycliques dérivés du cyclam ou du cyclen ont été obtenus par une nouvelle méthode de synthèse via un intermédiaire bis-cis-aminal. L'étude des propriétés thermodynamiques et structurales des complexes formés entre ces ligands et les cations cuivre(II), nickel(II) et cobalt(III) a été réalisée. En solution aqueuse, l'étude potentiométrique et spectroscopique (RPE, UV visible) des complexes du cuivre(II) a montré l'existence, selon la valeur du rapport R = [ligand]/[métal], de complexes mononucléaires ou dinucléaires de très grande stabilité. A l'état solide, les complexes d

APA, Harvard, Vancouver, ISO, and other styles

44

Gajda, Tamas Pal. "Équilibres et structure des complexes de métaux de transition avec des peptidoamines contenant l'histamine." Nancy 1, 1993. http://www.theses.fr/1993NAN10141.

Full text

Abstract:

Nous avons synthétisé de nouvelles molécules pseudo-peptidiques a base d'histamine: -alanyl-histamine, glycyl-histamine, sarcosyl-histamine etglycyl-glycyl-histamine. Les études cristallographique, RMN solide et liquide de ces molécules sous forme de chlorhydrates ont été réalisées. L'utilisation des différentes techniques (ph-métrie, rmn #1h, #1#3c et #1#4n) nous a offert la possibilité d'étudier la protonation, micro-protonation et le tautomerisme des produits synthétisés. La complexation des ligands avec les ions cobalt(II), nickel(II), cuivre(ii) et zinc(II) a été examinée. La richesse des

APA, Harvard, Vancouver, ISO, and other styles

45

Abdulmalic, Mohammad A., Azar Aliabadi, Andreas Petr, et al. "An interplay between the spin density distribution and magnetic superexchange interactions: a case study of mononuclear [nBu4N]2[Cu(opooMe)] and novel asymmetric trinuclear [Cu3(opooMe)(pmdta)2](NO3)2·3MeCN." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138948.

Full text

Abstract:

Treatment of the diethyl ester of o-phenylenebis(oxamic acid) (opbaH2Et2, 1) with 5/6 equivalent of MeNH2 in abs. EtOH results in the exclusive formation of the ethyl ester of o-phenylene(N′-methyl oxamide)(oxamic acid) (opooH3EtMe, 2) in ca. 50% yield. Treatment of 2 with four equivalents of [Me4N]OH followed by the addition of Cu(ClO4)2·6H2O gave [Me4N]2[Cu(opooMe)]·H2O (3A) in ca. 80% yield. As 3A appears to be a hygroscopic solid, the related [nBu4N]+ salts [nBu4N]2[M(opooMe)]·H2O (M = Cu (3B), Ni (4)) have been synthesized. By addition of two equivalents of [Cu(pmdta)(NO3)2] to a MeCN sol

APA, Harvard, Vancouver, ISO, and other styles

46

Abramov, Vladislav [Verfasser], and Gerd [Akademischer Betreuer] Meyer. "New Nickel(II) Complexes with N-donor Ligands and Anions as Coligands : Structures and Optical Properties / Vladislav Abramov. Gutachter: Gerd Meyer." Köln : Universitäts- und Stadtbibliothek Köln, 2011. http://d-nb.info/1038111986/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Ferretti, Eleonora. "Reductive Activation of Nitric Oxide and Nitrosobenzene at a Dinickel(II) Dihydride Complex and New Pyrazole-Based Diiron Compounds." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E594-D.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Chen, Zhi-Wan, and 陳枝萬. "Stereochemistry of tetraamine macrocyclic complexes of nickel(II); kinetics and mechanisms of tetraamine macrocyclic complexes of copper(II) and nickel(II)." Thesis, 1986. http://ndltd.ncl.edu.tw/handle/63807275128724776095.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Chen, Li-Hsuan, and 陳立軒. "Coordination Chemistry of Nickel(II) Ternary Complexes." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/78937714821448572345.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Lin, Yung-Chan, and 林永展. "Structures and Kinetics of Nickel(II) and Copper(II) Macrocyclic Complexes." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/946je8.

Full text

Abstract:

博士<br>國立清華大學<br>化學系<br>92<br>The tetraaza-macrocyclic ligands were synthesized by two methods. (1) The protecting group method reported by Richman and Atkins was used for the synthesis of isocyclam. (2) The general organic method with Michael addition reaction was employed to prepare 3-10-C-meso-Me8[14]dieneN4.2HClO4. The structures and components of these ligands were analyzed and identified by NMR, IR, UV-vis, mass, and X-ray studies. The complexes of Ni(II) and Cu(II) were synthesized by using Ni(ClO4)2.6H2O, Ni(OAc)2.4H2O, or Cu(ClO4)2.6H2O in hot methanol solution and recrystallized from

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!