Unusual binding mode of the biimidazolate bridging ligand in two novel heteropolynuclear complexes with an M2Ag2 [M = Ru(ii) or Os(ii)] coreElectronic supplementary information (ESI) available: details of crystal structure solution and refinement: Fig. S1–S4: representative ESIMS spectra. See http://www.rsc.org/suppdata/cc/b1/b100171j/
Abstract
Two novel examples of heteronuclear tetrametallic M2Ag2 (M = Ru, Os) complexes are described which show strong argentophilic interactions.