The effects of molecular configuration on the photochromism and decolorization of two bipyridinium-based coordination polymers

• Two bipyridinium-based coordination polymers have been solvothermally synthesized.
• The compounds exhibit rapid photochromic response.
• The influence factors on the decolorization process have been investigated.

Two layer-like coordination polymers, {[Cd(Bpyen)0.5(m-BDC)(H2O)Br]·4H2O}(1) and {[Cd(Bpyen)0.5(o-BDC)Br]·H2O}(2), have been solvothermally synthesized and structurally characterized. The two compounds own common rapid photochromic response but different decolorization behaviors. The photoproduct of compound 2 is more stable in air. The relationship between structure and photoresponsive behavior has been studied in detail.

Two two-dimensional bipyridinium-based coordination polymers have been synthesized, and the structure–property relationship involving photochromism and decolorization has been studied detailedly.Figure optionsDownload as PowerPoint slide