文摘
On page 6554, G. X. Zhang, D. Q. Zhang, and co-workers report a new carbazole and cyanosubstituted tetraphenylethylene, exhibiting polymorphism dependent emission. Four crystals of this tetraphenylethylene derivative were obtained after crystallization from different solvents. All the crystalline solids show high emission quantum yields; however, their emission colors are varied from blue to green because the solvents in the crystals affect the conformations of this tetraphenylethylene compound.