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Issue 45, 2016
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Ag2S2O8 meets AgSO4: the second example of metal–ligand redox isomerism among inorganic systems

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Abstract

Valence (redox) isomerism based on electron exchange between a metal and a ligand is immensely rare in purely inorganic systems, with only one documented case, that of PbS2 which adopts two polymorphic forms corresponding to Pb(IV)(S2−)2 and Pb(II)(S22−). Here we have taken advantage of metathetic reactions using salts of weakly coordinating anions and we have prepared for the first time Ag(I)2S2O8, silver(I) peroxydisulphate. The title compound crystallizes in the non-centrosymmetric Cc space group with partial disorder of the anionic sublattice. Ag(I)2S2O8 is a highly thermally unstable diamagnetic and colourless valence isomer of the antiferromagnetic and black Ag(II)SO4, described by us in the past.

Graphical abstract: Ag2S2O8 meets AgSO4: the second example of metal–ligand redox isomerism among inorganic systems

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Publication details

The article was received on 19 Aug 2016, accepted on 09 Oct 2016 and first published on 31 Oct 2016


Article type: Paper
DOI: 10.1039/C6DT03283D
Dalton Trans., 2016,45, 18202-18207

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    Ag2S2O8 meets AgSO4: the second example of metal–ligand redox isomerism among inorganic systems

    T. E. Gilewski, P. J. Leszczyński, A. Budzianowski, Z. Mazej, A. Grzelak, T. Jaroń and W. Grochala, Dalton Trans., 2016, 45, 18202
    DOI: 10.1039/C6DT03283D

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