Simple Manual Grinding Synthesis of Highly Luminescent Mononuclear Cu(I)–Iodide Complexes

Highly luminescent mononuclear copper(I)–iodide complexes [CuI(PPh3)2(L)] have been synthesized by simple manual grinding of copper(I) iodide, PPh3, and N-heteroaromatic ligands (L = isoquinoline, 1,6-naphthyridine, and pyridine). They exhibit different colors of luminescence depending on L affording very high quantum yields (0.63–0.99).