Silver(I) and gold(I) complexes with bitriazole‐based N‐heterocyclic carbene ligand: solid state features and behavior in solution

The coordinating properties of the bis(1,4-dimethyl-1,2,4-triazol-5-ylidene) ligand (abbreviated as bitz) towards silver(I) and gold(I) centres have been explored. bitz behaves bridging giving both dinuclear [M2(bitz)2](PF6)2 trinuclear [M3(bitz)3](PF6)3 species, whose formation has supported by X-ray diffraction analysis, NMR spectroscopy mass spectrometry evidences. complexes present very similar luminescence properties, emitting in blue region, at ~450 nm, when excited 350 nm. Selected experimental aspects dealing with synthesis well absorption complexes, investigated also through relativistic DFT calculations.