Synthesis, crystal structure and optical properties of 1,1'-(1,n-alkanediyl)bis(3-methylimidazolium) halobismuthates.

Four hybrid 3,3'-(alkane-1,n-di-yl)-bis(1-methyl- 1H- imidazole-3-ium) halobismuthates were prepared by a facile solution route and characterized by diffuse reflectance spectra and photoluminescence measurements. Crystal structure of 3,3'-(buthane-1,4-di-yl)-bis(1-methyl- 1H- imidazole-3-ium) bromobismuthate (1) contains zero-dimensional Bi 2 Br 10 anions. Crystal structure of 3,3'-(pentane-1,5-di-yl)-bis(1-methyl- 1H- imidazole-3-ium) iodobismuthate (4) contains zero-dimensional Bi 2 I 9 anions. [ABSTRACT FROM AUTHOR]