The novel heteroleptic copper (I) complex [6-(thiophen-2-yl)-2,2′-bipyridine]bis(triphenylphosphine) copper(I) tetrafluoroborate (1), formulated as [CuL(PPh₃)₂]BF₄, was synthesized in two steps, utilizing the diimine type ligand L = 6-(thiophen-2-yl)-2,2′-bipyridine and triphenylphosphine (PPh₃). The compound was characterized both in the solid state and in solution by employing single crystal X-ray diffraction, IR, UV, and NMR spectroscopies. The complex is an orange emitter that demonstrates a photoluminescence quantum yield of 2.6% in the solid state.

A new heteroleptic Cu(I) complex, [Cu(L)(PPh₃)₂][BF₄] (L = 6-(furan-2-yl)-2,2′-bipyridine; PPh₃ = triphenylphosphine), was successfully synthesized and characterized. Its molecular structure was determined using X-ray crystallography, and NMR as well as HR-ESI-MS data confirm the compound’s integrity in solution. The complex exhibits emission solely in the solid state (λ_em = 576 nm) and demonstrates a photoluminescence quantum yield of 2.5%.