Search results for "Pivalic acid"

showing 10 items of 10 documents

A new mixed-valence hexanuclear cobalt complex, [Co4IICo2III(dea)2(Hdea)4)(piv)4](ClO4)2·H2O: Synthesis, crystal structure and magnetic properties

2010

A new Co II /Co III hexanuclear complex, [Co 4 II Co 2 III (dea) 2 (Hdea) 4 )(piv) 4 ](ClO 4 ) 2 ·H 2 O 1 , has been obtained by reacting cobalt(II) perchlorate, diethanolamine, and pivalic acid (H 2 dea = diethanolamine and piv = pivalato anion). The cobalt ions are held together by four μ 3 and four μ 2 alkoxo bridges as well as by four syn – syn carboxylato groups. The hexanuclear motif contains four Co(II) and two Co(III) ions. The {Co II 4 Co III 2 (μ 2 -O) 4 (μ 3 -O) 4 } core can be described as a four face-sharing monovacant and bivacant distorted heterocubane units. The cobalt(III) ions are hexacoordinated. Two of the cobalt(II) are hexacoordinated, while the two others are pentacoo…

DiethanolamineValence (chemistry)Pivalic acidchemistry.chemical_elementCrystal structureInorganic ChemistryPerchloratechemistry.chemical_compoundCrystallographyBipyramidchemistryMaterials ChemistrySinglet statePhysical and Theoretical ChemistryCobaltInorganica Chimica Acta
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Manganese(iv) oxamato-catalyzed oxidation of secondary alcohols to ketones by dioxygen and pivalaldehyde

1998

A new manganese(IV) oxamato complex possessing a bis(moxo) dimanganese core has been synthesized, magnetically and structurally characterized, and found to catalyze the aerobic oxidation of secondary alcohols to ketones with cooxidation of pivalaldehyde to pivalic acid with good yields and high selectivities. Ruiz Garcia, Rafael, Rafael.Ruiz@uv.es ; Fernandez Picot, Isabel, Isabel.Fernandez@uv.es ; Pedro Llinares, Jose Ramon, Jose.R.Pedro@uv.es ; Rosello Arce, Antonio Luis, Antonio.L.Rosello@uv.es ; Castro Bleda, Isabel, Isabel.Castro@uv.es

ManganesePivalic acidDioxygenUNESCO::QUÍMICA::Química inorgánicaUNESCO::QUÍMICAMetals and Alloyschemistry.chemical_elementGeneral ChemistryManganeseKetones:QUÍMICA::Química inorgánica [UNESCO]:QUÍMICA [UNESCO]CatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCatalysischemistry.chemical_compoundchemistryAlcoholsOxidationMaterials ChemistryCeramics and CompositesOxidation of secondary alcohols to ketonesOrganic chemistryManganese ; Oxidation ; Alcohols ; Ketones ; Dioxygen
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CCDC 978062: Experimental Crystal Structure Determination

2014

Related Article: Christian Plenk, Thomas Weyhermüller, Eva Rentschler|2014|Chem.Commun.|50|3871|doi:10.1039/C4CC00895B

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatesoctakis(mu~3~-hydroxy)-tetrakis(mu~2~-22'-bipyrimidine)-octakis(mu~2~-hydroxy)-hexatriacontakis(mu~2~-pivalato)-octakis(pivalato)-tetrakis(pivalic acid)-dodeca-chromium(iii)-dodeca-nickel(ii) acetone solvate
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CCDC 978061: Experimental Crystal Structure Determination

2014

Related Article: Christian Plenk, Thomas Weyhermüller, Eva Rentschler|2014|Chem.Commun.|50|3871|doi:10.1039/C4CC00895B

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersoctakis(mu~3~-hydroxy)-tetrakis(mu~2~-22'-bipyrimidine)-octakis(mu~2~-hydroxy)-hexatriacontakis(mu~2~-pivalato)-octakis(pivalato)-tetrakis(pivalic acid)-dodeca-chromium(iii)-dodeca-cobalt(ii) acetone solvateExperimental 3D Coordinates
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CCDC 890505: Experimental Crystal Structure Determination

2013

Related Article: A.Mondal,S.Durdevik,L.-M.Chamoreau,Y.Journaux,M.Julve,L.Lisnard,R.Lescouezec|2013|Chem.Commun.|49|1181|doi:10.1039/c2cc38404c

Space GroupCrystallographyCrystal SystemCrystal Structurehexakis(Acetonitrile)-cobalt tetrakis(mu3-hydroxo)-tris(mu3-pivalato-OOO')-tridecakis(mu2-pivalato-OO')-dodecakis(mu2-cyano)-acetonitrile-tetrakis(hydrogen tris(pyrazolyl)borate-NN'N'')-tetrakis(pivalic acid-O)-dodeca-cobalt-tetra-iron acetonitrile solvate sesquihydrateCell ParametersExperimental 3D Coordinates
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CCDC 740338: Experimental Crystal Structure Determination

2010

Related Article: P.Albores, E.Rentschler|2009|Angew.Chem.,Int.Ed.|48|9366|doi:10.1002/anie.200904743

Space GroupCrystallographyCrystal SystemCrystal Structuretetrakis(mu-aqua)-dodecakis(aqua)-hexakis(acetonitrile)-tetrakis(pivalic acid)-tetrakis(pivalato)-dotriacontakis(mu-pivalato)-hexadecakis(mu-hydroxo)-octakis(mu-oxido)-tetrakis(mu-hydrogen pyrazine-23-dicarboxylato)-bis(mu-pyrazine-23-dicarboxylato)-tetra-cobalt(iii)-dotriaconta-cobalt(ii) pivalic acid acetonitrile solvate hydrateCell ParametersExperimental 3D Coordinates
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CCDC 842339: Experimental Crystal Structure Determination

2012

Related Article: I.C.Lazzarini, L.Carrella, E.Rentschler, P.Albores|2012|Polyhedron|31|779|doi:10.1016/j.poly.2011.11.002

Space GroupCrystallographyCrystal Systembis(mu~3~-oxo)-bis(mu~3~-pivalato)-bis(mu~3~-(salicylidene)ethanolamino)-hexakis(mu~2~-pivalato)-bis(pivalic acid)-tetra-cobalt(ii)-di-cobalt(iii)Crystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1462510: Experimental Crystal Structure Determination

2016

Related Article: Alejandro V. Funes, Luca Carrella, Eva Rentschler, Pablo Alborés|2016|Chem.-Eur.J.|22|14308|doi:10.1002/chem.201602681

Space GroupCrystallographybis(mu-hydrogen 22'2''-nitrilotriethanolato)-bis(mu-22'2''-nitrilotriethanolato)-bis(mu-hydroxo)-tetrakis(mu-pivalato)-bis(pivalato)-di-dysprosium(iii)-tetra-cobalt(iii) pivalic acid methanol solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 842340: Experimental Crystal Structure Determination

2012

Related Article: I.C.Lazzarini, L.Carrella, E.Rentschler, P.Albores|2012|Polyhedron|31|779|doi:10.1016/j.poly.2011.11.002

bis(mu~3~-oxo)-bis(mu~3~-pivalato)-bis(mu~3~-(salicylidene)ethanolamino)-hexakis(mu~2~-pivalato)-bis(pivalic acid)-tetra-cobalt(ii)-di-cobalt(iii) acetonitrile solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Chemistry and reactivity of mononuclear manganese oxamate complexes: Oxidative carbon-carbon bond cleavage of vic-diols by dioxygen and aldehydes cat…

2006

[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 structurally, magnetically, and electrochemically. The cyclovoltammogram of 1a in acetonitrile (25 degrees C, 0.1 M Bu4NPF6) shows an irreversible one-electron oxidation peak at a high anodic potential (E-ap = 1.03 V versus SCE), while that of 1b shows two well-separated one-electron oxidation peaks at moderate to high anodic potentials (E-ap = 0.92 and 1.27 V versus SCE), the first redox-wave being quasireversible in nature. The access to formally high-valent Mn-IV and…

chemistry.chemical_classificationO-O bond activationManganesePivalic acidLigandStereochemistryProcess Chemistry and Technologychemistry.chemical_elementManganeseC-C bond activationMedicinal chemistryAldehydeRedoxCatalysischemistry.chemical_compoundchemistryCarbon–carbon bondOxidationsFISICA APLICADAPyridinePhysical and Theoretical ChemistryBond cleavageRedox properties
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