Synthesis and investigation of a meta [6]cycloparaphenylene gold(I) N -heterocyclic carbene complex.

Meta [ n ]cycloparaphenylenes ( m [ n ]CPPs) as well as N -heterocyclic carbene (NHC) gold(I)-complexes are intriguing building blocks for material and life sciences due to their extraordinary structures resulting in unique photophysical properties. Herein, we report the combination of a m [6]CPP with a N -heterocyclic carbene serving as a ligand in a linear gold(I)-complex possessing the form [AuBr(NHC)]. Solid-state structures of both the precursor and the complex are presented and discussed. Moreover, we investigated the luminescence properties of both the imidazolium intermediate and the corresponding gold(I)-complex.