Temperature-dependent interchromophoric interaction in a fluorescent pyrene-based metal-organic framework.

ABSTRACT: Compounds exhibiting tuneable fluorescence emission upon heating or cooling are considered smart materials as their optical properties can be exquisitely controlled by adjusting the external temperature. Herein, we report such a material, which is a porous pyrene-based metal-organic framework with a chemical formula of [Mg_1.5(HTBAPy)(H₂O)₂]·3DMF (H₄TBAPy = 1,3,6,8-tetrakis(p-benzoic acid)pyrene), named SION-7. The bulk solid material of SION-7 can display either monomer or excimer fluorescence emission due to the temperature-dependent extent of interchromophoric interactions between the HTBAPy^3- ligands within the framework. Consequently, the fluorescence emission colours gradually change from blue at low temperatu

SUBMITTER: Gladysiak A 

PROVIDER: S-EPMC6585595 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature