Recently, the Shi Weiqun research group of the Multidisciplinary Center, Institute of High Energy Physics, Chinese Academy of Sciences has made new progress in the field of functional actinide complex flexible crystals. The related research results are Molecular spring-like triple-helix coordination polymers as dual stress and thermally responsive crystalline metal- The title of organic materials is published in the international journal "Angew. Chem. Int. Ed."
The preparation and application of new functional materials have always played a key role in the process of human modernization. In the study of materials science, crystalline materials are the main body of many solid materials. Its main feature is that the structure is highly ordered and stable, and can pass the function of the material. Oriented design to obtain corresponding special properties, functional crystalline materials can be used to prepare high-tech functional devices suitable for different fields.
Generally speaking, crystalline materials will show higher mechanical strength due to their highly ordered structure, but they often also face the shortcomings of brittleness and insufficient toughness, which is particularly evident in polymer materials. Shi Weiqun's team used semi-rigid organic molecules to design and synthesize a actinide flexible metal organic material (MOM) crystal with multiple stimuli response properties. This type of MOM crystal compound uses a molecular spring-type triple helix chain as the structural unit and shows good macroscopic flexibility. It can undergo corresponding force-induced elastic deformation and thermally-induced jump response under the application of external force or heating and heating.
This research provides important ideas and references for the design, synthesis and application of new multi-functional flexible MOMs in the future. More importantly, this force-thermal dual mechanical response triple helix coordination polymer successfully combines the highly ordered structure and macroscopic plasticity of crystalline materials, and represents a new class of multifunctional flexible MOM crystals. It will greatly expand the application of MOM functional compounds in the field of flexible materials and devices. In the future, molecular design and modification can also achieve higher-order multiple stimulus response capabilities of such flexible crystalline materials, such as temperature, light, acidity, and objects.
This project was supported by the National Outstanding Youth Fund Project, the National Natural Science Foundation of China and the Youth Innovation Promotion Association of the Chinese Academy of Sciences.
Wall Pack,Led Wall Pack Lights,Outdoor Led Wall Pack Lights,Alleyways Wall Pack Light
Fuonce-Lighting , https://www.gdfuonceled.com