A thermodynamic and kinetic study on [PdCl<sub>4</sub>]<sup>2–</sup> complex formation with <scp>L-</scp>cystine

Петров, А. И.; Головнев, Н. Н.; Leshok, A. A.

doi:10.1080/00958972.2012.672733

Cited by 9 publications

(12 citation statements)

References 17 publications

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“…NMR spectra were recorded for an equilibrium mixture. Beforehand, we reported that 13 C-NMR spectroscopy provided essential data on the state of a disulfide bond [15]. Analysis of the NMR data (Table 4) for the system Pt(II) -H 4 hCysS 2+ confirmed the formation of the Pt(IV) thiol complex in solution.…”

Section: {Table 3} {Figure 4}mentioning

confidence: 91%

“…Analysis of the NMR data (Table 4) for the system Pt(II) -H 4 hCysS 2+ confirmed the formation of the Pt(IV) thiol complex in solution. Changes in the C α and C β (numeration goes from sulfur) environments can be easily observed comparing 13 C NMR spectra for free H 4 hCysS 2+ and a complex. They confirm the formation of the Pt -S bond.…”

Section: {Table 3} {Figure 4}mentioning

confidence: 99%

“…The chemical shift for C α is decreased that is consistent with the formation of the platinum thiol complex. There is no new chemical shift at 57 ppm in the 13 C NMR spectrum, which refers to the products of disproportionation or oxidation. There is no difference in the 13 C NMR spectra between the chemical shift of carbon associated with the -SO 2 H or -SO 3 H group.…”

Section: {Table 3} {Figure 4}mentioning

confidence: 99%

“…There is no new chemical shift at 57 ppm in the 13 C NMR spectrum, which refers to the products of disproportionation or oxidation. There is no difference in the 13 C NMR spectra between the chemical shift of carbon associated with the -SO 2 H or -SO 3 H group. For a disproportionation reaction and the oxidation appears characteristic chemical shift at 57 ppm in 13 C NMR.…”

Section: {Table 3} {Figure 4}mentioning

confidence: 99%

“…We have previously reported no disulfide bond cleavage takes place during the stepwise complex formation of L-cystine (H 4 CysS 2+ ) [13,14] and cystamine (H 2 Cyst 2+ ) [15] with Pd(II) in hydrochloric acid solutions. On the other hand, we have reported irreversible disproportionation takes place during the interaction of homocystine (H 4 hCysS 2+ ) and 3,3'-dithiodipropionic acid (H 2 DTDPA) [16] with Pd 2+ yielding sulfinic (RS(O 2 H)M) and thiol (RSM) complexes.…”

Section: Introductionmentioning

confidence: 99%

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Interaction of Pt(II) and Au(III) with organic disulfides in hydrochloric aqueous solution

Петров

Novikova

Demina

et al. 2019

Journal of Coordination Chemistry

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The interaction of Pt(II) and Au(III) with disulfides (L-cystine, cystamine, DL-homocystine and 3,3'-dithiodipropionic acid) in hydrochloric acid aqueous solutions was studied. In the case of Pt(II), the oxidative addition reaction leads to the formation of the Pt(IV) thiol complex. In the case of Au(III) disulfide binding causes a reduction to Au(0) and oxidation of the disulfide to sulfonic acid. Cyclic voltammetry and different spectroscopic methods were used to study the process. The pattern of influence of the metallic properties for d 8 ions in the direction of the reaction was found.

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Section: {Table 3} {Figure 4}mentioning

confidence: 91%

Section: {Table 3} {Figure 4}mentioning

confidence: 99%

Section: {Table 3} {Figure 4}mentioning

confidence: 99%

Section: {Table 3} {Figure 4}mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Interaction of Pt(II) and Au(III) with organic disulfides in hydrochloric aqueous solution

Петров

Novikova

Demina

et al. 2019

Journal of Coordination Chemistry

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Platinum(II)‐mediated disulfide/thiolate interconversion in organic disulfides: Density functional theory thermodynamic study

Петров

Dergachev

2021

Int J of Quantum Chemistry

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We present a complete Density Functional Theory (DFT) study of the thermodynamics of the reactions of disulfides (L-cystine, cystamine, DL-homocystine, and 3,3 0dithiodipropionic acid) with Pt(II) ions in aqueous media. SMD solvation model was fitted to take into account the solvation effects of the medium. DFT calculations predict the oxidative addition reaction with the formation of thiolate complexes of Pt(IV)-[PtCl 4 (S-R) 2 ] which is consistent with experimental data. We propose a theoretical model that rationalizes the experimental data on Pt(II) interactions with homological disulfides. The role of explicit solvation in reactions is also investigated. We propose that the stability of S,S 0 -binuclear disulfide complexes correlates with the redistribution of charges on sulfur atoms. We compared MN15 and PBE0 functionals for the calculation of equilibrium constants.

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TD-DFT assessment of UV-vis spectra palladium and platinum complexes with thiols and disulfides

Петров

Lutoshkin

2021

J Mol Model

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A thermodynamic and kinetic study on [PdCl₄]^2– complex formation with L-cystine

Cited by 9 publications

References 17 publications

Interaction of Pt(II) and Au(III) with organic disulfides in hydrochloric aqueous solution

Interaction of Pt(II) and Au(III) with organic disulfides in hydrochloric aqueous solution

Platinum(II)‐mediated disulfide/thiolate interconversion in organic disulfides: Density functional theory thermodynamic study

TD-DFT assessment of UV-vis spectra palladium and platinum complexes with thiols and disulfides

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A thermodynamic and kinetic study on [PdCl4]2– complex formation with L-cystine

Cited by 9 publications

References 17 publications

Interaction of Pt(II) and Au(III) with organic disulfides in hydrochloric aqueous solution

Interaction of Pt(II) and Au(III) with organic disulfides in hydrochloric aqueous solution

Platinum(II)‐mediated disulfide/thiolate interconversion in organic disulfides: Density functional theory thermodynamic study

TD-DFT assessment of UV-vis spectra palladium and platinum complexes with thiols and disulfides

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A thermodynamic and kinetic study on [PdCl₄]^2– complex formation with L-cystine