An Integrated Chemiluminescence Microreactor for Ultrastrong and Long‐Lasting Light Emission

A porous metal–organic framework [Ba(H2 LLOMe 2−)·DMF·H2O]·2DMF (UPC‐2) (H4 LLOMe = 4ʹ,4ʹʹʹ‐(2,3,6,7‐tetramethoxyanthracene‐9,10‐diyl)bis([1,1ʹ‐biphenyl]‐3,5‐dicarbo‐xylic acid N,N‐Dimethylformamide [DMF]), which can act as an excellent chemiluminescence microreactor, is designed and constructed. In the framework of UPC‐2, the catalytic Ba cluster and electron‐rich anthracene fluorescent centers are fixed and interconnected in an orderly fashion, and this can shorten the energy transfer path and weaken the relaxation of the chemiluminescence process. Meanwhile, the rhombic channels of UPC‐2 can provide a proper diffusion ratio of reactants to support a stable and continuous energy supply. The UPC‐2 chemiluminescence microreactor exhibits an ultrastrong and long‐lasting light emission, which possesses potential application in emergency lights and biological mapping. The concept of the chemiluminescence microreactor and its construction using a metal–organic framework as a platform will promote further research in the design and fabrication of functional MOFs for chemiluminescence applications.
To enhance the light‐emitting intensity and extend the lasting time of chemiluminescence (CL) reaction, a concept of “integrated chemiluminescence microreactor” is proposed and constructed using a metal–organic framework as a platform. The as‐obtained microreactor presents an ultrahigh light‐emitting intensity which could be observed by the naked eye even after 540 min.