61017-93-4Relevant articles and documents
Rich-colour mechanochromism of a cyanostilbene derivative with chiral self-assembly
Wen, Li,Sun, Jingwei,Li, Chengjian,Zhu, Chenfei,Zhang, Xi,Wang, Zhenbo,Song, Qingbao,Lv, Chunyan,Zhang, Yujian
, p. 11530 - 11535 (2021)
Mechanochromic luminophores exhibiting rich-colour transitions among multiple states have important potential applications, but few such compounds are known. Herein, chiral self-assembly fabrication is proposed as a valid method to realize a new type of metastable state, which may bring enriched PL colours. A novel chiral fluorophore,ACNS, was synthesized and assembled into helices with specific handedness, showing a tricolour photoluminescence (PL) transition among yellow, green and blue under grinding and other stimuli. The crystallineACNSpowder (B-phase) emits bright sky-blue light. Interestingly, the luminophore assembles into helical nanofibres (Y-phase) with specific handedness, which present yellow fluorescence at 539 nm. Moreover, upon grinding, both Y-phase and B-phase powder change into green-emitting powder (G-Phase) with a PL peak at 498 nm. This strategy is conceptually simple and affords a promising approach to the development of mechanochromic luminophores with multicolour fluorescence switching.
Benzyltin pyrimidine derivatives, their preparation and their use as medicaments
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Paragraph 0053; 0054, (2017/01/19)
The invention relates to the field of pharmaceutical chemistry, specifically to benzyl pyrimidine derivatives (I), preparation methods thereof, medicinal compositions containing the derivatives and medical application of the derivatives, in particular, application of the derivatives as an immunosuppressant in autoimmune diseases and organ transplantation.
