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

Abstract

A porous metal–organic framework [Ba(H 2 L LOMe 2− )·DMF·H 2 O]·2DMF ( UPC‐2 ) (H 4 L LOMe = 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.

Long-Lasting Luminol Chemiluminescence Emission with 1,10-Phenanthroline-2,9-dicarboxylic Acid Copper(II) Complex on Paper

“…For example, Cui et al has reported one long-lasting CL hydrogel and porous HRP/ABEI/Co 2+ -CaCO 3 MPs with slow-diffusion-controlled heterogeneous catalysis. , Sun et ael. prepared a porous metal–organic framework of UPC-2 with a proper diffusion ratio to provide a stable and continuous supply for long-lasting light emission . The reason for lasting emission in this work was the slow diffusion rate on the paper surface.…”

“…To solve this problem, the slow-diffusion-controlled heterogeneous reaction − was adopted to develop the long-lasting CL emission. The typical examples were from the next work.…”

“…26 Additionally, the slow-diffusion-controlled reaction was performed by using of a large number of hemin molecules in a single nanoparticle for long-lasting CL emission. 27 Also, a CL microreactor was constructed by the porous metal−organic framework, 28 which can provide a proper diffusion ration for long-lasting emission. In this work, as cellulose has the porous structure, the porous structure can be used by embedding the definite size particle inside it.…”

Multi-interactive Coordination Network Featuring a Ligand with Topologically Isolated p Orbitals

“…The triphenylene-encapsulated network structure contained open metal sites, as evidenced by the absence of electron density in the vicinity of the Co 2+ ion (Figure ). Such open sites have many potential uses, such as selective interactions with guest molecules for gas storage/separation and sensing. − However, they are typically created by a vacuum treatment of network samples at higher temperatures. , In the case of Co-3TPHAP, coordinatively unsaturated metal sites were created simply by guest encapsulation. To the best of our knowledge, this is the first such example in the field of coordination networks.…”

Two Pyrene-Based Metal–Organic Frameworks for Chemiluminescence

“…An ultrastrong and lasting CL will be observed when the fluorescent molecule goes back to the ground state. Apart from that, an amount of necessary solvents and additives is also used to improve the efficiency of CL. − As a kind of crystalline porous material formed by the self-assembly of metal ions and organic ligands, metal–organic frameworks (MOFs) have definite spatial structures and provide a good platform for designing and exploring the rational assembly of functional molecules, − which show fascinating applications in adsorption, gas separation, catalysis, and so on. − Recently, several anthracene-based MOFs that show good CL performance have been reported. − In contrast, research on the CL of pyrene-based MOFs is still quite rare.…”