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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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Supplementary files

Article information


Submitted
19 Aug 2016
Accepted
09 Oct 2016
First published
31 Oct 2016

Dalton Trans., 2016,45, 18202-18207
Article type
Paper

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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