Determination of high concentrations of palladium by combined use of gravimetric and spectral analysis

Malyutina, T.M.; Shneider, B. V.; Alekseeva, T. Yu.; Karpov, Yu. A.

doi:10.1134/s0020168513140070

Cited by 4 publications

(2 citation statements)

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“…PdCl 4 2− formation was confirmed by XPS bands centered at 338.5–339.4 eV and 343.9–344.4 eV, which were consistent with Pd 3d 5/2 and 3d 3/2 bands, respectively (see the Supporting Information). Conversion was quantified gravimetrically by the dimethylglyoxime complex …”

Section: Figurementioning

confidence: 99%

Oxidative Mechanochemistry: Direct, Room‐Temperature, Solvent‐Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes

Tan

Friščić

2018

Angew Chem Int Ed

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Noble metals are valued, critical elements whose chemical activation or recycling is challenging, and traditionally requires high temperatures, strong acids or bases, or aggressive complexation agents. By using elementary palladium and gold, demonstrated here is the use of mechanochemistry for noble-metal activation and recycling by mild, clean, solvent-free, and room-temperature chemistry. The process leads to direct, efficient, one-pot conversion of the metals, including spent catalysts, into either simple water-soluble salts or metal-organic catalysts.

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Section: Figurementioning

confidence: 99%

Oxidative Mechanochemistry: Direct, Room‐Temperature, Solvent‐Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes

Tan

Friščić

2018

Angew Chem Int Ed

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“…The overwhelming applications of the metal in various fields demand detailed study of the metal and its compounds. The trace measurement analysis involves the techniques viz gravimetric [10,11], AAS [12,13], X-ray fluorescence [14], NAA [15,16], inductive coupled plasma-emission spectroscopy (ICP-ES) [17], inductive coupled plasma-mass spectrometry (ICP-MS) [18] and UV/VIS spectrophotometry [19][20][21][22]. However, due the limitation of these methods in terms of handling, maintenance and economy, their application for the purpose of analysis of the metal is less preferred.…”

Section: Introductionmentioning

confidence: 99%

A spectrophotometric determination and the quantum chemical investigation of Pd(II)-3-hydroxy-2-(4-methoxyphenyl)-4-oxo-4H-1-benzopyran complex

Agnihotri,

Mohini,

I. Al-Resayes

et al. 2024

Bull. Chem. Soc. Eth.

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An analytical approach has been instigated for spectrophotometric inquisition of trace amounts of palladium in its bivalent oxidation state employing a novel 1-benzopyran derivative viz. A 1:2 [Pd(II):HMPB] light yellow complex is formed by a spontaneous interaction between Pd(II) and HMPB. The complex is quantitatively extracted from a weakly basic medium into dichloromethane absorbing prevalently and consistently at 405-425 nm. The method coheres to linearity up to 1.5 µg mL-1 of palladium(II). Analytical parameters such as the molar absorption coefficient (ε=3.011 × 104 L mol-1 cm-1), Sandell's sensitivity [0.0035 µg Pd(II) cm-2], % RSD (0.62%) and the limit of detection [0.0147 µg Pd(II) mL-1] indicate that the study satisfies all the criteria for good sensitivity, precision and accuracy. In addition, intervention with regard to numerous anions/complexing agents and cations of primary analytical importance has been performed to assess the method's flexibility and usefulness. The results show that the majority of them do not cause any interference during determination. To better understand chemistry of the prepared complex, spectroscopic quantum chemical studies including DFT and MEP mapping based on examination of the electronic characteristics of the complex in its most stable least energy conformation are used. KEY WORDS: Palladium, 3-Hydroxy-2-(4-methoxyphenyl)-4-oxo-4H-1-benzopyran, Extractive spectrophotometric determination, DFT, MEP, Docking Bull. Chem. Soc. Ethiop. 2024, 38(3), 591-603. DOI: https://dx.doi.org/10.4314/bcse.v38i3.4

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Oxidative Mechanochemistry: Direct, Room‐Temperature, Solvent‐Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes

Tan

Friščić

2018

Angewandte Chemie

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Noble metals are valued, critical elements whose chemical activation or recycling is challenging, and traditionally requires high temperatures, strong acids or bases, or aggressive complexation agents. By using elementary palladium and gold, demonstrated here is the use of mechanochemistry for noble‐metal activation and recycling by mild, clean, solvent‐free, and room‐temperature chemistry. The process leads to direct, efficient, one‐pot conversion of the metals, including spent catalysts, into either simple water‐soluble salts or metal–organic catalysts.

show abstract

Determination of high concentrations of palladium by combined use of gravimetric and spectral analysis

Cited by 4 publications

References 1 publication

Oxidative Mechanochemistry: Direct, Room‐Temperature, Solvent‐Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes

Oxidative Mechanochemistry: Direct, Room‐Temperature, Solvent‐Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes

A spectrophotometric determination and the quantum chemical investigation of Pd(II)-3-hydroxy-2-(4-methoxyphenyl)-4-oxo-4H-1-benzopyran complex

Oxidative Mechanochemistry: Direct, Room‐Temperature, Solvent‐Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes

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