Results 11 to 20 of about 8,724 (213)

Synthesis and characterization of novel oxo-bridged, trinuclear mixed-metal complexes of Cr(III) and Fe(III) [PDF]

open access: yesJournal of the Serbian Chemical Society, 2009
Two new heterotrinuclear p-chlorobenzoates, [Fe2CrO(C7H4O2Cl)6(py)3]NO3 (1) and [Cr2FeO(C7H4O2Cl)6(py)3]NO3 (2) were prepared as nitrate salts and characterized by elemental analyses (CHN), spectroscopic (infrared, electronic) studies and atomic ...
HAMAN TAVAKKOLI   +2 more
doaj   +3 more sources

Bioinspired trimesic acid anchored electrocatalysts with unique static and dynamic compatibility for enhanced water oxidation

open access: yesNature Communications, 2023
Layered double hydroxides are promising candidates for the electrocatalytic oxygen evolution reaction. Unfortunately, their catalytic kinetics and long-term stabilities are far from satisfactory compared to those of rare metals.
Xiaojing Lin   +13 more
doaj   +1 more source

Electron-Induced Decomposition of Different Silver(I) Complexes: Implications for the Design of Precursors for Focused Electron Beam Induced Deposition

open access: yesNanomaterials, 2022
Focused electron beam induced deposition (FEBID) is a versatile tool to produce nanostructures through electron-induced decomposition of metal-containing precursor molecules. However, the metal content of the resulting materials is often low.
Petra Martinović   +7 more
doaj   +1 more source

Synthesis, characterization, thermal behavior and antimicrobial activity of 3-methyl benzoate complexes of transition metal with hydrazine

open access: yesBulletin of the Chemical Society of Ethiopia, 2016
Reaction of the ligands, 3-methyl benzoic acid (mbH) and hydrazine with transition metal ions form the complexes of formulae, [M(N2H4)2(mb)2].H2O where M = Co(II) and Zn(II) at pH = 5-6, [M(N2H4)n(mb)2].xH2O where M = Ni(II), n = 2, x = 0 at pH = 5 and
S. Mohanapriya   +2 more
doaj   +1 more source

In situ grown oxygen-vacancy-rich copper oxide nanosheets on a copper foam electrode afford the selective oxidation of alcohols to value-added chemicals

open access: yesCommunications Chemistry, 2022
Converting low-molecular-weight aliphatic alcohols like methanol and ethanol into value-added chemicals such as carboxylates in electrolytic cells offers low operating costs, but non-noble-metal catalysts often bring about low selectivities and ...
Mustafa Khan   +10 more
doaj   +1 more source

Zn(II) and Co(II) 3D Coordination Polymers Based on 2-Iodoterephtalic Acid and 1,2-bis(4-pyridyl)ethane: Structures and Sorption Properties

open access: yesMolecules, 2022
Metal-organic frameworks [M2(2-I-bdc)2bpe] (M = Zn(II) (1), Co(II) (2), 2-I-bdc = 2-iodoterephtalic acid, and bpe = 1,2-bis(4-pyridyl)ethane) were prepared and characterized by X-ray diffractometry.
Alexander S. Zaguzin   +5 more
doaj   +1 more source

Selective reduction and homologation of carbon monoxide by organometallic iron complexes

open access: yesNature Communications, 2018
Metal-mediated activation of CO for C-C coupling reactions is a valuable approach to carbon monoxide valorization. Here, the authors use low-coordinate iron(II) complexes for the selective scission and homologation of CO affording unusual squaraines and ...
Helen R. Sharpe   +10 more
doaj   +1 more source

Two-step analytical procedure for the characterization and quantification of metal soaps and resinates in paint samples

open access: yesHeritage Science, 2018
Metal soaps and resinates are known to be spontaneously formed in artistic paintings, as a product of the reaction between aliphatic and terpenoid acids released by hydrolysis and oxidation of the organic media and certain cations contained in some ...
Jacopo La Nasa   +3 more
doaj   +1 more source

Zn(II) Three-Dimensional Metal-Organic Frameworks Based on 2,5-Diiodoterephthalate and N,N Linkers: Structures and Features of Sorption Behavior

open access: yesInorganics, 2023
Two new coordination polymers based on Zn(II) and 2,5-diiodoterephthalate—{[Zn(2,5-I-bdc)bpe}] (1) and {[Zn(2,5-I-bdc)bpen}] (2)—were synthesized and characterized.
Alexander S. Zaguzin   +4 more
doaj   +1 more source

Carboxylic acid-modified metal oxide catalyst for selectivity-tunable aerobic ammoxidation

open access: yesNature Communications, 2018
Precisely controlling the surface properties of base-metal oxide catalysts to tune the reaction selectivity remains a challenge. Here, the authors show that a green modification of manganese oxide surface with carboxylates can be used to tune the ...
Xiuquan Jia   +5 more
doaj   +1 more source

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