Hybrid salts of binuclear Bi(III) halide complexes with 1,2-bis(pyridinium)ethane cation: Synthesis, structure and luminescent behavior

•Two hybrid binuclear complexes (BPE)2[Bi2X10] (X = Cl, Br) were synthesized.•Luminescent behavior was studied.•Molecular structure was determined by X-ray diffractometry.

Reactions between 1,2-bis(pyridinium)ethane bromide ((BPE)Br2) and [BiCl6]3−/[BiBr6]3− in HCl or HBr results in isostructural binuclear complexes (BPE)2[Bi2X10] (X = Cl (1) and Br (2)) which were characterized by X-ray diffractometry, IR and Raman spectroscopy. Both complexes manifest orange-red luminescence in solid state.

Graphical abstractTwo organic-inorganic hybrids based on Bi(III) halide complexes; (BPE)2[Bi2X10] (X = Cl, Br) (BPE = 1,2-bis(pyridinium)ethane) have been prepared. Both complexes display orange-red luminescence; its intensity is higher for chloride complex than for bromideFigure optionsDownload full-size imageDownload as PowerPoint slide