Synthesis of palladium(II) 3d-metal(II) paddlewheel acetate-bridged heterodimetallic complexes: Unexpected catalysis by water molecules

Ахмадуллина, Н. С.; Черкашина, Н. В.; Kozitsyna, N. Yu.; Stolarov, Igor P.; Perova, E. V.; Гехман, А. Е.; Нефедов, С. Е.; Варгафтик, М. Н.; Моисеев, И. И.

doi:10.1016/j.ica.2008.09.042

Cited by 44 publications

(27 citation statements)

References 22 publications

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“…We should stress that the appearance of this H bond gives rise to an insignificant (0.015 Å) elongation of the Zn-O(2) bond, which is far smaller than the bond elongation observed in complexes with the lantern geometry where the axial position is occupied by a ligand molecule that is capable of H bonding with the oxygen atom of the bridg ing carboxylate anion [12,13].…”

Section: Reagents and Methodsmentioning

confidence: 80%

Structure of reaction products of hydrous and anhydrous zinc acetates with 1,10-phenanthroline

Uvarova

Kushan

Нефедов

2012

Russ. J. Inorg. Chem.

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A reaction of aqueous zinc acetate with 1,10 phenanthroline produces the ionic complex [(Phen) 2 Zn(OOCMe)](OOCMe) · 5H 2 O. A similar reaction of "anhydrous zinc acetate" [Zn 7 (μ 4 O) 2 (μ OOCMe) 10 ][η OC(Me)OHNEt 3 ] 2 in benzene yields a precipitate, which is recrystallized from acetonitrile into trinuclear (Phen) 2 Zn 3 (μ OOCMe) 6 ; and the reaction in acetonitrile yields mononuclear (Phen)Zn(OOCMe) 2 · MeCN. These complexes have been characterized by single crystal X ray diffraction.

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Section: Reagents and Methodsmentioning

confidence: 80%

Structure of reaction products of hydrous and anhydrous zinc acetates with 1,10-phenanthroline

Uvarova

Kushan

Нефедов

2012

Russ. J. Inorg. Chem.

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“…The nature of this effect is still unclear. Our preliminary kinetic study [14] suggested a complicated reaction mechanism of the formation of heterometallic complexes 1-3.…”

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confidence: 84%

Competition between 3d metals(II) and palladium(II) in the reaction of heterobimetallic complexes Pd(μ-OOCMe)4M(OH2) (M=Ni, Co, Mn) with azobenzene

Нефедов

Perova

Yakushev

et al. 2009

Inorganic Chemistry Communications

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“…11 The catalytic layer of the active components was formed in the internal volume of the membrane channels by the alkoxo method on the basis of organic solutions of the metallocomplex precursors containing La-Ce, Pd-Co, and Pd-Mn. 12, 13 The ratio of components of the La-Ce containing catalytic system was chosen on the basis of the literature data on dry reforming of methane in the traditional reactor with the bulk bed of the La-Ce/MgO catalyst, which manifested the highest ac tivity in dry reforming of methane. 14 To form catalytic coatings on the internal surface of the membrane channels, mother liquors of metallocomplex precur sors in toluene was pumped through the membrane on the labo ratory setup connected to a vacuum pump.…”

Section: Methodsmentioning

confidence: 99%

Structural studies of nanosized porous membrane catalytic systems highly active in dry reforming of biomass conversion products

et al. 2011

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The structures of porous ceramic membrane catalytic systems exhibiting high activity in dry reforming of biomass conversion products (methane, hydrocarbons C 2 -C 4 , and alcohols) to a hydrogen containing gas were studied. The membrane catalytic systems represent porous inorganic membranes (supports) prepared by self propagating high temperature synthesis and modified by nanosized metallocompex components, which are uniformly distributed in the internal pore volume. Structural studies were carried out using scanning electron microscopy with energy dispersive analysis, transmission electron microscopy, temperature programmed reduction with hydrogen, and X ray diffraction analysis.Considerable attention is recently given to the develop ment of efficient methods for the conversion of natural gas and renewable biomass to syn gas and dihydrogen, which are among the major energy carriers in petroleum chemis try and power engineering. 1-3 It has previously been shown that the dry reforming and vapor reforming of methane, its gaseous homologies, alcohols, and a series of carboxylic acids (primary products of biomass conversion) are sub stantialy intensified in porous membrane catalytic sys tems (MCS). These systems have a very low content of active components distributed on the internal surface of the membrane channels. 4-6 However, they exhibit high specific productivity in the formation of syngas in dry reforming of methane and ethanol. Syn gas production increases if a mixture of ethanol and glycerol (50%) mixture is used as raw materials. 7 The productivity of syn gas for the process in the membrane catalytic reactor increases by almost an order of magnitude compared to that attained when dry reforming is carried out in a tra ditional flow type reactor with the loaded stationary cata lyst bed of a similar composition obtained by grinding the MCS. 4-7As shown in many works, the improved heat exchange and mass transfer of the substrates in membrane channels are important advantages of such systems compared to the stationary catalyst bed loaded in a traditional flow type reactor. 8,9* Dedicated to Academician of the Russian Academy of Sciences R. Z. Sagdeev on the occasion of his 70th birthday.

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Synthesis of palladium(II) 3d-metal(II) paddlewheel acetate-bridged heterodimetallic complexes: Unexpected catalysis by water molecules

Cited by 44 publications

References 22 publications

Structure of reaction products of hydrous and anhydrous zinc acetates with 1,10-phenanthroline

Structure of reaction products of hydrous and anhydrous zinc acetates with 1,10-phenanthroline

Competition between 3d metals(II) and palladium(II) in the reaction of heterobimetallic complexes Pd(μ-OOCMe)4M(OH2) (M=Ni, Co, Mn) with azobenzene

Structural studies of nanosized porous membrane catalytic systems highly active in dry reforming of biomass conversion products

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