Relevant bibliographies by topics / Zerovalent metal complexes

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Zerovalent metal complexes'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Zerovalent metal complexes"

1

Cavell, Ronald G., and Ian G. Phillips. "Reactions of Cyclopolyphosphines with Zerovalent Platinum Group Metal Complexes." Phosphorous and Sulfur and the Related Elements 30, no. 1-2 (March 1987): 117–20. http://dx.doi.org/10.1080/03086648708080536.

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2

Bennett, Martin A. "Aryne Complexes of Zerovalent Metals of the Nickel Triad." Australian Journal of Chemistry 63, no. 7 (2010): 1066. http://dx.doi.org/10.1071/ch10198.

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The chemistry of dihapto-aryne complexes of the zerovalent Group 10 metals of general formula [M(η2-aryne)L2] (M = Ni, Pd, Pt; L = various tertiary phosphines) is reviewed, with emphasis on the highly reactive nickel(0) compounds (aryne = benzyne, C6H4; 4,5-difluorobenzyne, 4,5-C6H2F2; 2,3-naphthalyne, 2,3-C10H6; L2 = 2 PEt3, 2 PiPr3, 2 PCy3, dcpe). These can be generated by alkali metal reduction of the appropriate (2-halogenoaryl)nickel(ii) halide precursors, such as [NiX(2-XC6H4)L2], which in turn are accessible by oxidative addition of the 1,2-dihaloarene to nickel(0) precursors such as [Ni(1,5-COD)2]. The X-ray structure of [Ni(η2-C6H4)(dcpe)] shows that this compound is a typical 16-electron Ni(0) (3d10) species in which benzyne acts as a 2π-electron donor. Several unusual organonickel compounds derived from [Ni(η2-4,5-C6H2F2)(PEt3)2] have been isolated recently, including [Ni2(μ-η2:η2-4,5-C6H2F2)(PEt3)4], in which a 4π-electron donor 4,5-difluorobenzyne is located at right-angles to a pair of nickel atoms. Free benzyne can be intercepted by both [Ni(η2-C2H4)(dcpe)] and [Pt(η2-C2H4)(PPh3)2], but the resulting benzyne complexes rapidly insert benzyne to give the appropriate η1:η1-2,2′-biphenylyl complexes. [Pt(η2-C6H4)(PPh3)2] also undergoes rapid ortho-metallation to give [PtPh(2-C6H4PPh2)(PPh3)]. However, a trapping reaction has been used to make the first 1,4-benzdiyne complex, [{Ni(dcpe)2}2(μ-η2:η2-1,4-C6H2)] by treatment of the 4-fluorobenzyne complex [Ni(η2-4-FC6H3)(dcpe)] with LiTMP. The use of alkali metals in the preparation of the η2-benzyne complexes is avoided in a more recently developed procedure, which starts from (2-bromophenyl)boronic acid, and is based on Suzuki–Miyaura coupling. This procedure has made accessible for the first time an aryne complex of palladium(0), [Pd(η2-C6H4)(PCy3)2], and the labile nickel(0) complex [Ni(η2-C6H4)(PPh3)2]. The aryne-nickel(0) complexes Ni(η2-aryne)L2 (L2 = 2 PEt3, dcpe) undergo sequential insertions into the aryne-metal bond with unsaturated molecules, such as CO, C2F4, substituted alkynes, substituted diynes, alkynylphosphines, and alkynyl thioethers, often with considerable regioselectivity. After the reductive elimination of two nickel-carbon σ-bonds, a variety of interesting polycyclic compounds can be obtained.
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Braunschweig, Holger, Rian D. Dewhurst, Florian Hupp, Christina Kaufmann, Ashwini K. Phukan, Christoph Schneider, and Qing Ye. "Gauging metal Lewis basicity of zerovalent iron complexes via metal-only Lewis pairs." Chemical Science 5, no. 10 (July 15, 2014): 4099. http://dx.doi.org/10.1039/c4sc01539h.

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4

Braunschweig, Holger, Carina Brunecker, Rian D. Dewhurst, and Christoph Schneider. "Does Lewis basicity correlate with catalytic performance in zerovalent group 8 complexes?" Zeitschrift für Naturforschung B 73, no. 3-4 (April 25, 2018): 149–53. http://dx.doi.org/10.1515/znb-2017-0193.

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AbstractA set of 18 zerovalent group 8 metal complexes of the form [MLn(CO)5−n] (M=Fe, Ru, Os; L=neutral donor;n=0–2) were screened for their catalytic performance in aldehyde hydrosilylation and olefin hydroboration reactions. Although none of the untested catalysts were found to perform better than the previously-published complex [Fe(CO)4(IMes)] (IMes=1,3-Dimesityliidazol-2-ylidene), the results suggest that the Lewis basicity of the metal complex does not play a critical role in the catalysis of these two reactions.
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Stufkens, Derk J. "Spectroscopy, photophysics and photochemistry of zerovalent transition metal α-diimine complexes." Coordination Chemistry Reviews 104, no. 1 (July 1990): 39–112. http://dx.doi.org/10.1016/0010-8545(90)80040-z.

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Choi, Henry W., and E. L. Muetterties. "Zerovalent metal phosphite complexes. Synthesis of RE2 [P (OCH3)3]10." Bulletin des Sociétés Chimiques Belges 89, no. 10 (September 1, 2010): 809–11. http://dx.doi.org/10.1002/bscb.19800891005.

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7

Branzan, Ramona M. C., Jutta Kösters, Mareike C. Jahnke, and F. Ekkehardt Hahn. "Oxidative addition of N-ether-functionalized 2-chlorobenzimidazole to d10 metals." Zeitschrift für Naturforschung B 71, no. 10 (October 1, 2016): 1077–85. http://dx.doi.org/10.1515/znb-2016-0137.

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AbstractReaction of 2-chloro-N-(methoxymethyl)benzimidazole 1 with zerovalent group 10 metal complexes in the presence of an additional proton source yielded, via an oxidative addition of the C2–Cl bond, complexes with a protic NH,NR-substituted (R=methoxymethyl) benzimidazolin-2-ylidene ligand. The oxidative addition of 1 to Ni0 and Pd0 complexes proceeded with the exclusive formation of the trans-configured complexes trans-[2]BF4 and trans-[3]BF4, respectively. Contrary to this observation, the reaction of 1 with a more substitution inert Pt0 complex leads, depending on the reaction temperature, to a mixture of cis-/trans-[4]BF4 or exclusively to trans-[4]BF4. The molecular structures of all three trans-configured complexes were determined.
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8

Manuta, David M., and Alistair J. Lees. "Solvatochromism of the metal to ligand charge-transfer transitions of zerovalent tungsten carbonyl complexes." Inorganic Chemistry 25, no. 18 (August 1986): 3212–18. http://dx.doi.org/10.1021/ic00238a025.

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9

Belotti, Diana, Florian Kampert, Mareike C. Jahnke, and F. Ekkehardt Hahn. "Oxidative addition of a 8-bromotheobromine derivative to d 10 metals." Zeitschrift für Naturforschung B 76, no. 3-4 (March 4, 2021): 227–35. http://dx.doi.org/10.1515/znb-2021-0011.

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Abstract Reaction of 8-bromo-7-ethyl-3-methylxanthine 1 with zerovalent group 10 metal complexes gave via an oxidative addition of the C–Br bond the neutral complexes trans-[2] (M = Pd) and trans-[3] (M = Pt) bearing a theobromine-derived azolato ligand. While the oxidative addition to [Pd0(PPh3)4] gave exclusively trans-[2], the reaction with the more substitution-inert [Pt0(PPh3)4] yielded after 1 day the kinetic product cis-[3], which was converted under heating for a total of 3 days completely into the thermodynamically more stable complex trans-[3]. Treatment of trans-[2], trans-[3] or the mixture of cis-/trans-[3] with the proton source HBF4⋅Et2O led to complexes trans-[4]BF4, trans-[5]BF4 and a mixture of cis/trans-[5]BF4 with retention of the original ratio of cis to trans, respectively. The molecular structures of the azolato complexes trans-[2] and trans-[3] and of the theobromine derived pNHC complexes trans-[4]BF4 and trans-[5]BF4 have been determined by X-ray diffraction studies.
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Pacchioni, Gianfranco, and Paul S. Bagus. "Metal-phosphine bonding revisited. .sigma.-Basicity, .pi.-acidity, and the role of phosphorus d orbitals in zerovalent metal-phospine complexes." Inorganic Chemistry 31, no. 21 (October 1992): 4391–98. http://dx.doi.org/10.1021/ic00047a029.

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Dissertations / Theses on the topic "Zerovalent metal complexes"

1

Tahiri, Mohamed. "Phtalocyanines de fer(i) et de fer(0) : synthese, structure et reactivite." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13043.

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Synthese et caracterisation d'une serie de complexes monoreduits de phtalocyanine de fer de type (fe pc r::(8))**(-) ou r=och::(3), ch::(3), h, cl et cn. On donne les structures par rx de composes monoanioniques et dianionique fe pc**(-) et fe pc**(2-). Proprietes chimiques de fe pc**(2-). De tels especes peuvent etre des modeles d'intermediaires formes dans la reaction de la phenylhydrazine sur la metmyoglobine ou dans le metabolisme de substrats suicides par cytochrome p450
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Ruiz-Montes, José. "Alkylations asymetriques de bases de schiff derives de la glycine : application a la synthese d'alpha -amino acides." Paris 6, 1988. http://www.theses.fr/1988PA066518.

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Achi, Sabah Samira. "Nouvelle voie d'acces aux acides alpha -amines, par catalyse homogene a l'aide de complexes de metaux de transition, synthese de nouveaux complexes phosphores chiraux du tungstene pentacarbonyle." Paris 6, 1987. http://www.theses.fr/1987PA066227.

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Wang, Dan Li. "Reaction des metalloporphyrines reduites avec les monohalogenoalcanes et les dihalogenoalcanes vicinaux." Paris 7, 1988. http://www.theses.fr/1988PA077166.

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Huser, Marc. "Carbonylations catalytiques du chlorobenzene et du dichloromethane." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13196.

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Alvarez, Gonzalez Eleuterio. "Substitution d'ethers et d'alcools allyliques par differents nucleophiles en presence de complexes de nickel(0) : synthese stereoselective des dienes-1,4 a partir des sulfones dieniques avec le chlorure d'isopropylmagnesium en presence de sels de." Paris 6, 1987. http://www.theses.fr/1987PA066064.

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Grisoni, Serge. "Synthese biomimetique du cycle c des alcaloides de l'ergot : application, premiere synthese enantioselective de la (-) chanoclavine i." Paris 6, 1987. http://www.theses.fr/1987PA066408.

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Synthese de benzo (cd) indoles a partir de l'indolecarbaldehyde-4 par cyclisation intramoleculaire en presence de pd(o); l'utilisation de bases solides (alumine-kf ou k::(2)co::(3)) permet des conditions operationnelles douces
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8

Gaudin, Jean-Marc. "Synthèses sélectives à l'aide de complexes du Palladium(0) : élaboration de chaine latérale de stéroïde (glaucastérol), phéromones et alpha-amino esters d'intérêts biologiques." Paris 6, 1986. http://www.theses.fr/1986PA066536.

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Ce travail porte sur l'utilisation de complexe du palladium (0) en catalyse homogène pour la synthèse de molécules d'intérêts biologiques. Trois applications y sont décrites: - la synthèse d'une phéromone secrétée par la reine des abeilles et d'une hormone végétale : l'acide traumatique. La construction du squelette carbone de ces molécules est basée sur une double alkylation d'une bis (aryl sulfonyl) méthane, l'une d'entre elles faisant intervenir un complexe eta (3) allyl palladien fonctionnalisé ; - la synthèse d'alpha-amino esters susceptibles d'être utilisés comme inhibiteur d'enzyme. Ceci est réalisé par l'alkylation catalysée d'une base de Schiff dérivée de la glycine. Quelques facteurs pouvant influencer l'énantiosélectivité de cette réaction ont été étudiés; - la synthèse de la chaine latérale du glaucasterol. Ce stéroïde marin isolé très récemment à la particularité de posséder dans sa structure un cyclopropane vinylique. La réaction clef est une cyclisation sn' catalysée. Elle s'effectue avec un transfert complet de la chiralité d'un benzoate allylique sur un des carbones cyclopropaniques et permet d'autre part le contrôle de la stéréochimie de la double liaison.
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