A New Blue-emitting Diimine Copper(I) Complex: Synthesis, Crystal Structure and Photophysical Properties

A new diimine Cu(I) complex, [Cu(DPEphos)(DPOP)]BF4 ·CH2Cl2 (1) (DPEphos = bis[2(diphenylphosphino)phenyl]-ether, DPOP = 2-(11-dipyrido[3,2-a:2′ ,3′-c]phenazine)-5-p-tolyl-1,3,4oxadiazole), has been synthesized and characterized by X-ray single-crystal diffraction analysis. In crystals of complex 1, the [Cu(DPEphos)(DPOP)]+ cations are arranged in supramolecular chains, just like a “zipper”. Cation layers and anion layers are alternating in this structure. The photophysical behavior of DPOP and 1 was studied.