Characterization of Novel Vanadium(III)/Acetate Clusters Formed in Aqueous Solution

Fry, Fiona H.; Dougan, Brenda A.; McCann, Nichola; Ziegler, Christopher J.; Brasch, Nicola E.

doi:10.1021/ic050336f

Cited by 32 publications

(20 citation statements)

References 33 publications

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“…Four V atoms are arranged roughly in a square. 23 Each V atom has two water ligands, and is bridged to each of two other V atoms by an hydroxide ligand and by a bridging carboxylate (Fig. 12).…”

Section: Four Points Of Extensionmentioning

confidence: 99%

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

et al. 2009

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This critical review presents a comprehensive study of transition-metal carboxylate clusters which may serve as secondary building units (SBUs) towards construction and synthesis of metal-organic frameworks (MOFs). We describe the geometries of 131 SBUs, their connectivity and composition. This contribution presents a comprehensive list of the wide variety of transition-metal carboxylate clusters which may serve as secondary building units (SBUs) in the construction and synthesis of metal-organic frameworks. The SBUs discussed here were obtained from a search of molecules and extended structures archived in the Cambridge Structure Database (CSD, version 5.28, January 2007) which included only crystals containing metal carboxylate linkages (241 references).

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Section: Four Points Of Extensionmentioning

confidence: 99%

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

et al. 2009

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“…Multinuclear acetate cluster of V(III) have been reported in aqueous media. 21 Similar cluster formation can also occur with larger size resulting in precipitation. NTA is known to form mononuclear heptadentate complex with V(III).…”

Section: Resultsmentioning

confidence: 96%

Novel V(III) Compound, V(OH)(HCOO)₂: Electrochemical Synthesis, Characterization and Electroreduction Behavior on Suitable Electrodes

Bairwa

Mal

Naik

2014

J. Electrochem. Soc.

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Novel V(III) compound, V(OH)(HCOO) 2 has been synthesized by controlled current electrolysis route. V(OH)(HCOO) 2 precipitation during electrolysis was found to depend on both pH and concentration of V(III) in solution. It is an ionic V(III) compound with mild associated organic anion. The compound readily dissolves in pure water but subsequently precipitates out as polymer depending upon concentration and aging duration. However a stable aqueous solution with significantly high V(III) concentration could be prepared from it by adding a suitable complexing agent like nitrilotriacetic acid (NTA) and citric acid. These complex formulations will have potential application for nuclear power plant application and vanadium redox batteries. Electrochemical evaluation of the reduction characteristics of the compound on glassy carbon and stainless steel electrodes has established the varying effect of free acid at these surfaces. Part consumption of current for proton reduction on stainless steel electrodes and blocking of active sites by H + adsorption on carbon surfaces was observed. Thus, a high surface area carbon based electrodes will be better suited for high current efficiency during vanadous solution preparation by electroreduction while stainless steel electrodes may be used for efficient hydrogen generation from organic acids.Strong reducing agents are required in various fields ranging from energy storage, 1,2 analysis 3 to synthesis. 4 Strong reducing agents with favorable material compatibility behavior are also required for dissolution of various iron (III) oxides formed on primary heat transport system of water cooled nuclear power reactors. 5 These oxides are primary constituents of the corrosion products generated under hightemperature hydrothermal conditions. In the primary heat transport system, the solubilized/suspended corrosion products get activated as they pass through the reactor core and deposit at various locations based on their solubility at a particular temperature and water chemistry regime. 6 Hence, periodic decontamination procedure by means of chemical dissolution of the outer oxide layer of the structural surfaces is required to control the radiation field build up. 7 This involves reducing ferric ion in the oxide lattice to destabilize the oxide and subsequently complexing the dissolved metal ions with a proper ligand under favorable pH conditions. 8,9 Thus, the decontamination formulation is a mixture of a strong reducing agent, a suitable complexing agent and a pH maintaining agent. 10 Low oxidation state ions of chromium and vanadium namely Cr(II) and V(II) are suitable reducing agents for the purpose. 11 However, Cr(II) being highly unstable in aqueous media leaves V(II) as the practically applicable option for decontamination. The general corrosion rate for the austenitic materials in V(II) based formulations has been found to be less than 0.1 μm/h which is quite low for such applications. 8 While simple iron oxides like Fe 3 O 4 , γ-Fe 2 O 3 , FeOOH and α-Fe 2 O 3 etc., can be eff...

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“…[V 4 (m-OH) 4 (m-OOCCH 3 ) 4 (OH 2 ) 6 ]Cl 4 ?3H 2 O. Synthetically available tetranuclear vanadium cluster was prepared by a modification of the procedure reported by Fry et al 17 with good yield. Lead acetate (11.1 mmol; 4.20 g) was gradually added to a stirring solution of VCl 3 (22.2 mmol; 3.50 g) in water (35 mL).…”

Section: Preparationmentioning

confidence: 99%

Tetradecanuclear lanthanide-vanadium “nanochocolates”: catalytically-active cationic heteropolyoxovanadium clusters

et al. 2013

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Characterization of Novel Vanadium(III)/Acetate Clusters Formed in Aqueous Solution

Cited by 32 publications

References 33 publications

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

Novel V(III) Compound, V(OH)(HCOO)₂: Electrochemical Synthesis, Characterization and Electroreduction Behavior on Suitable Electrodes

Tetradecanuclear lanthanide-vanadium “nanochocolates”: catalytically-active cationic heteropolyoxovanadium clusters

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Characterization of Novel Vanadium(III)/Acetate Clusters Formed in Aqueous Solution

Cited by 32 publications

References 33 publications

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

Novel V(III) Compound, V(OH)(HCOO)2: Electrochemical Synthesis, Characterization and Electroreduction Behavior on Suitable Electrodes

Tetradecanuclear lanthanide-vanadium “nanochocolates”: catalytically-active cationic heteropolyoxovanadium clusters

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Product

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Novel V(III) Compound, V(OH)(HCOO)₂: Electrochemical Synthesis, Characterization and Electroreduction Behavior on Suitable Electrodes