Bright luminescence of new low-melting copper(I) chlorides with compact organic cations

In this paper, we comprehensively studied two ACl/CuCl systems with dimethylammonium (DMA + ) and acetamidinium (Ac + ) organic cations and proved the formation of five new crystalline phases: DMACu 2 Cl 3 , DMACuCl 2 , DMA 4 [Cu 2 Cl 6 ], DMA 3 CuCl 4 , and AcCuCl 2 .