In situ cleavage and coupling of sulfur-carbon (sp2) bond towards a two-dimensional mesh construction

A novel coordination polymer [Ni(mdn)(H2O)2] (mdn = 6,6’-mercaptodinicotinate) (1) has been prepared, and characterized by single-crystal X-ray diffraction along with powder XRD, Infrared spectrum, elemental analysis and magnetic analysis. Complex 1 displays an interesting two-dimensional wave-like mesh construction and further forms a three-dimensional supramolecular structure based on π∙∙∙π and C–H∙∙∙π stacking interactions. A rarely reported transition-metal-mediated in situ cleavage and coupling of sulfur-carbon (sp2) bond has been observed.

Graphical AbstractPresented here is an unusual in situ cleavage and coupling of sulfur-carbon (sp2) bond towards a two-dimensional mesh construction. The mesh network further forms a three-dimensional supramolecular complex via intermolecular π∙∙∙π and C–H∙∙∙π stacking interactions.Figure optionsDownload as PowerPoint slideResearch Highlights
► An unusual in situ cleavage and coupling of sulfur-carbon (sp2) bond was found.
► The possible process of the in situ formation is illustrated in this work.
► This reaction would provide a new method for the formation of metal-organosulfides.