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Capture of [Ag4(µ2-DMSO)6(DMSO)2]4+ by Silicotungstate: Structural, Solution and Computational Studies.

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Title: Capture of [Ag4(µ2-DMSO)6(DMSO)2]4+ by Silicotungstate: Structural, Solution and Computational Studies.
Authors: Volchek, Victoria V.1 (AUTHOR), Kokovkin, Vasily V.1 (AUTHOR), Sulyaeva, Veronica S.1 (AUTHOR), Sukhikh, Taisiya S.1 (AUTHOR), Korolkov, Ilya V.1 (AUTHOR), Sokolov, Maxim N.1 (AUTHOR), Abramov, Pavel A.1,2 (AUTHOR) abramov@niic.nsc.ru
Source: Journal of Cluster Science. Apr2026, Vol. 37 Issue 2, p1-7. 7p.
Subjects: Silver clusters, Silver ions, Analytical chemistry techniques, Tungstates, Ab-initio calculations, Electrochemistry, X-ray diffraction, Dimethyl sulfoxide
Abstract: The speciation of Ag+ in DMSO remains a challenging question due to the formation of equilibrated polynuclear species of unknown nature. This contribution illustrates a possible presence of [Ag4(µ2-DMSO)6(DMSO)2]4+ polynuclear moiety as a component of Ag+ speciation in DMSO solution. This cation was isolated in the solid state by the assist of [SiW12O40]4– as a counter anion. The dried crystals of [Ag4(µ2-DMSO)6(DMSO)2][SiW12O40]·3DMSO·0.7H2O (1) have been characterized by single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), FT-IR and TGA. Argentophilic interactions in the cation were studied by quantum-chemical calculations, revealing non-uniform Ag–O interaction of the "central" DMSO ligand with three closest surrounding Ag atoms. The solutions of 1 in CH3CN were studied by high performance liquid chromatography coupled with ICP (HPLC-ICP-AES) and electrochemistry. The results indicate that the [Ag4(µ2-DMSO)6(DMSO)2]4+ complex undergoes speciation in the solution with the formation of several silver containing species, whose chromatographic indication is possible owing to slow exchange kinetics between DMSO and CH3CN ligands. Such mixed ligand complexes are quite unusial and need further characterization. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Cluster Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Capture of [Ag<subscript>4</subscript>(µ<subscript>2</subscript>-DMSO)<subscript>6</subscript>(DMSO)<subscript>2</subscript>]<superscript>4+</superscript> by Silicotungstate: Structural, Solution and Computational Studies.
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  Data: <searchLink fieldCode="AR" term="%22Volchek%2C+Victoria+V%2E%22">Volchek, Victoria V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kokovkin%2C+Vasily+V%2E%22">Kokovkin, Vasily V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sulyaeva%2C+Veronica+S%2E%22">Sulyaeva, Veronica S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sukhikh%2C+Taisiya+S%2E%22">Sukhikh, Taisiya S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Korolkov%2C+Ilya+V%2E%22">Korolkov, Ilya V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sokolov%2C+Maxim+N%2E%22">Sokolov, Maxim N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Abramov%2C+Pavel+A%2E%22">Abramov, Pavel A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> abramov@niic.nsc.ru</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Cluster+Science%22">Journal of Cluster Science</searchLink>. Apr2026, Vol. 37 Issue 2, p1-7. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Silver+clusters%22">Silver clusters</searchLink><br /><searchLink fieldCode="DE" term="%22Silver+ions%22">Silver ions</searchLink><br /><searchLink fieldCode="DE" term="%22Analytical+chemistry+techniques%22">Analytical chemistry techniques</searchLink><br /><searchLink fieldCode="DE" term="%22Tungstates%22">Tungstates</searchLink><br /><searchLink fieldCode="DE" term="%22Ab-initio+calculations%22">Ab-initio calculations</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemistry%22">Electrochemistry</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Dimethyl+sulfoxide%22">Dimethyl sulfoxide</searchLink>
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  Data: The speciation of Ag+ in DMSO remains a challenging question due to the formation of equilibrated polynuclear species of unknown nature. This contribution illustrates a possible presence of [Ag4(µ2-DMSO)6(DMSO)2]4+ polynuclear moiety as a component of Ag+ speciation in DMSO solution. This cation was isolated in the solid state by the assist of [SiW12O40]4– as a counter anion. The dried crystals of [Ag4(µ2-DMSO)6(DMSO)2][SiW12O40]·3DMSO·0.7H2O (1) have been characterized by single crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), FT-IR and TGA. Argentophilic interactions in the cation were studied by quantum-chemical calculations, revealing non-uniform Ag–O interaction of the "central" DMSO ligand with three closest surrounding Ag atoms. The solutions of 1 in CH3CN were studied by high performance liquid chromatography coupled with ICP (HPLC-ICP-AES) and electrochemistry. The results indicate that the [Ag4(µ2-DMSO)6(DMSO)2]4+ complex undergoes speciation in the solution with the formation of several silver containing species, whose chromatographic indication is possible owing to slow exchange kinetics between DMSO and CH3CN ligands. Such mixed ligand complexes are quite unusial and need further characterization. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Cluster Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10876-026-02989-1
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        Text: English
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      – SubjectFull: Silver clusters
        Type: general
      – SubjectFull: Silver ions
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      – SubjectFull: Analytical chemistry techniques
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      – SubjectFull: Tungstates
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      – SubjectFull: Ab-initio calculations
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      – SubjectFull: Electrochemistry
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      – SubjectFull: X-ray diffraction
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      – SubjectFull: Dimethyl sulfoxide
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      – TitleFull: Capture of [Ag4(µ2-DMSO)6(DMSO)2]4+ by Silicotungstate: Structural, Solution and Computational Studies.
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              Text: Apr2026
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