Synthesis, luminescence and ion-binding studies of a trinuclear copper(I) acetylide complex containing benzo-15-crown-5. X-ray crystal structure of [Cu3(μ-dppm)3(μ3-η1-CC-benzo-15-crown-5)2]PF6

A luminescent bicapped trinuclear copper(I) acetylide complex, [Cu3(μ-dppm)3(μ3-η1-CC-benzo-15-crown-5)2]PF6, has been synthesized and its photophysical properties studied. Sodium ion-binding by the crown ether cavity has been studied by electrospray ionization-mass spectrometry and emission spectroscopy. The crystal structure of [Cu3(μ-dppm)3(μ3-η1-CC-benzo-15-crown-5)2]PF6 has been determined.