[6-(Thiophen-2-yl)-2,2′-bipyridine]bis(triphenylphosphine) Copper(I) Tetrafluoroborate

Abstract

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.

Keywords

• heteroleptic copper(I) complexes
• photoluminescence
• diimine ligands
• X-ray diffraction