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Browsing by Subject "Manganese"

Now showing items 1-17 of 17

A novel dimer of oxo-di(acetato)-bridged manganese(III) dimers complex of potential biological significance

Ruiz, R.; Sangregorio, C.; Caneschi, A.; Rossi, P.; Gaspar, A. B.; Real, J. A.; Muñoz Roca, María Del Carmen (Elsevier, 2000-07)

[EN] Assembly of the tetranuclear oxomanganese(III) acetato cluster [Mn4O2(O2CMe)(7)(phen)(2)](BF4) from the dinuclear oxo-di(acetato)bridged manganese(III) species [Mn2O(O2CMe)(2)(H2O)(2)(phen)(2)](BF4)(2) . 3H(2)O in ...
Catalizadores metálicos estructurados en reacciones de Química Sostenible

López Hernández, Irene (Universitat Politècnica de València, 2021-09-02)

[ES] En esta tesis doctoral se ha investigado sobre el empleo de catalizadores metálicos estructurados en diversas reacciones de Química Sostenible. En primer lugar, se ha estudiado la eliminación de los NOX mediante su ...
Chemistry and reactivity of dinuclear manganese oxamate complexes: Aerobic catechol oxidation catalyzed by high-valent bis(oxo)-bridged dimanganese(IV) complexes with a homologous series of binucleating 4,5-disubstituted-o-phennylenedioxamate ligands

Blay, G.; Fernández, I.; Pedro, J. R.; Ruiz-García, R.; Temporal-Sánchez, T.; Pardo, E.; Lloret, F.; Muñoz Roca, María Del Carmen (Elsevier, 2006-05-02)

[EN] The high-valent bis(oxo)-bridged dimanganese(IV) complexes with the series of binucleating 4.5-X-2-o-phenylenebis(oxamate) ligands (opbaX(2); X = H, Cl, Me) (1a-c) have been synthesized and characterized structurally, ...
Chemistry and reactivity of mononuclear manganese oxamate complexes: Oxidative carbon-carbon bond cleavage of vic-diols by dioxygen and aldehydes catalyzed by a trans-dipyridine manganese(III) complex with a tetradentate o-phenylenedioxamate ligand

Barroso, S.; Blay, G.; Fernández, I.; Pedro, J. R.; Ruiz-García, R.; Pardo, E.; Lloret, F.; Muñoz Roca, María Del Carmen (Elsevier, 2006-01-16)

[EN] Two new mononuclear octahedral manganese(III) complexes with the tetradentate equatorial ligand o-phenylenebis(oxamate) (opba) and two aquo (1a) or two pyridine (1b) axial ligands have been synthesized and characterized ...
Development of a novel fcc structure for an amorphous-nanocrystalline Ti-33Nb-4Mn (at.%) ternary alloy

Chicardi, Ernesto; García-Garrido, C.; Sayagués, M.J.; Torres, Y.; Amigó, Vicente; Aguilar, C. (Elsevier, 2018-01)

[EN] In this work, a novel amorphous-nanocrystalline titanium-niobium-manganese solid solution ternary alloy with a Ti-33Nb-4Mn (at.%) nominal composition was developed by a High-Energy Mechanical Alloying. Nb and Mn were ...
Discovering Differences in Iron and Manganese Behaviour in Service Reservoirs

Doronina, Anastasia; Husband, Stewart; Boxall, Joby; Speight, Vanessa (Editorial Universitat Politècnica de València, 2024-03-06)

[EN] Service reservoirs (SRs) are crucial components in drinking water distribution systems (DWDSs). In the UK, regulatory monitoring is conducted infrequently at SR outlets and for disinfectant residual and bacteriological ...
Effect of zeolite structure on the selective catalytic reduction of NO with ammonia over Mn-Fe supported on ZSM-5, BEA, MOR and FER

Ben-Younes, Nada; Martinez-Ortigosa, Joaquin; Marie, Olivier; Blasco Lanzuela, Teresa; Mhamdi, Mourad (Springer-Verlag, 2021-05)

[EN] A series of catalysts based on Mn-Fe loaded zeolites was prepared by impregnation and their activity in the selective catalytic reduction of NO with ammonia (NH3-SCR) was investigated. The highest catalytic conversion ...
Electrochemical Analysis of Catalytic and Oxygen Interfacial Transfer Effects on MnO2 Deposited on Gold Electrodes

Doménech Carbó, Antonio; Sabate-Fornons, Ferran; Sabater Picot, Mª José (American Chemical Society, 2018-05-24)

[EN] A theoretical model for obtaining thermochemical and kinetic information on oxygen interfacial transfer in metal oxides deposited on gold electrodes, based in the voltammetry of immobilized particle methodology, is ...
High-valent bis(oxo)-bridged dinuclear manganese oxamates: Synthesis, crystal structures, magnetic properties, and electronic structure calculations of bis(n-oxo)dimanganese(IV) complexes with a binucleating o-phenylenedioxamate ligand

Ruiz-García, R.; Pardo, E.; Muñoz Roca, María Del Carmen; Cano, J. (Elsevier, 2007-01-01)

[EN] Two novel bis(oxo)-bridged dinuclear manganese(IV) complexes with the binucleating ligand o-phenylenebis(oxamate) (opba), formulated as (Me4N)(4)[Mn2O2(opba)(2)] (1a) and (Me4N)(2)(Ph4P)(2)[Mn2O2(opba)(2)] (.) 8H(2)O ...
Radical alpha-alkylation of ketones with unactivated alkenes under catalytic and sustainable industrial conditions

Sanz-Navarro, Sergio; Garnes-Portoles, Francisco; López Cruz, Carlos; Espinós Ferri, Estela; Corma Canós, Avelino; Leyva Perez, Antonio (Elsevier, 2021-03-05)

[EN] The industrially-viable aerobic alpha-alkylation of cyclic and acyclic ketones with allyl and alkyl alkenes in the presence of catalytic amounts of Mn2+, under homo- and heterogeneous conditions, is achieved here. ...
Rational design of a new class of heterobimetallic molecule-based magnets: Synthesis, crystal structures, and magnetic properties of oxamato-bridged M 3M2 (M = LiI and MnII; M = NiII and CoII) open-frameworks with a three-dimensional honeycomb architecture

Cangussu, D.; Pardo, E.; Dul, M. C.; Lescouëzec, R.; Herson, P.; Journaux, Y.; Pedroso, E. F.; Pereira, C. L. M.; Stumpf, H. O.; Muñoz, M. C.; Ruiz-García, R.; Cano, J.; Julve, M.; Lloret, F. (Elsevier, 2008-09-01)

[EN] Two new series of oxamato-bridged heterobimetallic coordination networks of general formula Li-5[Li3M2(mpba)(3)(H2O)(6)] center dot 31H(2)O [M= Ni-II (1a) and Co-II (1b)] and Li-2[Mn3M2(mpba)(3)(H2O)(6)] center dot ...
Ruthenium isomorphic substitution into Manganese Oxide Octahedral Molecular Sieve OMS-2: Comparative physic-chemical and catalytic studies of Ru versus Abundant Metal Cationic Dopants.

Sabate-Fornons, Ferran; Jorda Moret, Jose Luis; Sabater Picot, Mª José (Elsevier, 2022-07-01)

[EN] A fraction of structural Mn cations have been replaced by different cationic dopants (i.e. earth abundant cationic dopants and heavier, Ru3+) in the cryptomelane oxide K-OMS2. Then, a comparative study has been addressed ...
Study of the chemical composition and the mechanical behaviour of 20th century commercial artists' oil paints containing manganese-based pigments

Fuster-López, Laura; Izzo, F.C.; Piovesan, M.; Yusa Marco, Dolores Julia; Sperni, L.; Zendri, Elisabetta (Elsevier, 2016-01)

[EN] The present study deals with 20th century manufactured artists' oil paints containing raw and burnt umber pigments, this is, natural earth pigments resulting from the combination of iron and manganese oxides. Manganese, ...
Synthesis of gamma-lactones from easily and accessible reactants catalyzed by Cu-MnOx catalysts

Sabate-Fornons, Ferran; Navas Escrig, Javier; Sabater Picot, Mª José; Corma Canós, Avelino (Elsevier, 2018)

[EN] The mechanism of the oxidative [3+2] cycloaddition of alkenes with anhydrides using oxygen as an oxidant to synthesize gamma-lactones has been studied using a heterogeneous dual copper-manganese-based catalyst. The ...
Thiodiacetate-manganese chemistry with N-ligands: unique control of the supramolecular arrangement over the metal coordination mode

Grirrane, Abdessamad; Pastor, Antonio; Galindo, Agustín; Álvarez, Eleuterio; Mealli, Carlo; Ienco, Andrea; Orlandini, Annabella; Rosa, Patrick; Caneschi, Andrea; Barra, Anne-Laure; Fernández Sanz, Javier (Wiley-VCH Verlag, 2011-09-12)

[EN] Compounds based on the Mn-tda unit (tda=S(CH2COO)2 2) and N co-ligands have been analyzed in terms of structural, spectroscopic, magnetic properties and DFT calculations. The precursors [Mn(tda)(H2O)]n (1) and ...
WATERSensing: A Smart Warning System for Natural Disasters in Spain

Cecilia-Canales, José María; Cano, Juan-Carlos; Tavares De Araujo Cesariny Calafate, Carlos Miguel; Manzoni, Pietro; Periñán-Pascual, Carlos; Arcas-Túnez, Francisco; Muñoz-Ortega, Andrés (Institute of Electrical and Electronics Engineers, 2021-11-01)

[EN] Floods are expected to increase in the coming years due to global warming. The early identification of water-based disasters can be lifesaving, and the challenge is to identify appropriate and timely warning measures. ...
ZnO-based spinels grown by electrodeposition

Tortosa Jorques, María Dolores; Manjón Herrera, Francisco Javier; Mollar García, Miguel Alfonso; Marí Soucase, Bernabé (Elsevier, 2012-09)

We report on the synthesis of thin films of ZnCo 2O 4 and ZnMn 2O 4 spinels, as well as pure Co 3O 4 and Mn 3O 4 spinels, by means of electrodeposition. Spinel thin films have been analyzed by energy dispersive spectroscopy, ...