The mixed-valence coordination polymer [Cu(S2CNPr2)2]2[ClO4] containing alternating square-planar Cu(II) and Cu(III) centres

•Mixed-valence copper(II)-copper(III) coordination polymer.•Alternating square planar copper(II) and copper(III) centres.•Intermolecular Cu-S interactions.

The mixed-valence coordination polymer, [Cu(S2CNPr2)2]2[ClO4], containing both square-planar Cu(II) and Cu(III) centres, has been prepared and crystallographically characterised. In the solid-state it consists of a chain of alternating Cu(II) and Cu(III) centres held together by intermolecular Cu–S interactions, while the perchlorate anions are not metal coordinated. For comparison the crystal structure of [Cu(S2CNPr2)2]2 has been re-determined at 150 K.

Graphical abstractThe mixed-valence coordination polymer, [Cu(S2CNPr2)2]2[ClO4], has been prepared and crystallographic studies show that it consists of alternating square-planar paramagnetic copper(II) and diamagnetic copper(III) centres, the chain being held together by intermolecular copper–sulphur interactions, while the perchlorate anions are non-coordinating.Figure optionsDownload full-size imageDownload as PowerPoint slide