Synthesis, structure and luminescence of novel co-crystals based on bispyridyl-substituted α , β -unsaturated ketones with coformers
作者:Hong-Juan Li、Lei Wang、Juan-Juan Zhao、Ju-Feng Sun、Ji-Liang Sun、Chun-Hua Wang、Gui-Ge Hou
DOI:10.1016/j.molstruc.2014.09.008
日期:2015.1
1 H NMR and X-ray crystal structure analysis. Structural analysis indicates that four-component macrocycles in 1 – 3 are generated from “clip-like” resorcinol templates and building blocks, while 4 – 6 show infinite H-bonding chains. In addition, the luminescent properties of A , B and 1 – 6 are investigated primarily in the solid state. Compared with free building blocks, 1 – 6 are blue-shifted 55–60 nm
摘要 基于 2,6-双((吡啶-4-基)亚甲基)环己酮 (A) 和 N-甲基-3,5-双((吡啶-4-基)亚甲基)-4-哌啶酮 (B) coformers, 三种新型大环共晶, ( A )⋅(间苯二酚) ( 1 ), ( A )⋅(1,3,5-苯三醇) ( 2 ), ( B ) 2 ⋅(1,3,5-苯三醇) 2 ( 3 ) 和三个链共晶, ( A )⋅(氢醌) ( 4 ), ( A )⋅(间苯二甲酸) ( 5 ), ( B )⋅(间苯二甲酸) ( 6 ) 已被合成并通过 IR、1 H NMR 和 X 射线晶体结构分析对其进行结构表征。结构分析表明,1-3 中的四组分大环是由“夹状”间苯二酚模板和构建块生成的,而 4-6 显示出无限的 H 键链。此外,A、B 和 1-6 的发光特性主要在固态下进行研究。与免费积木相比,尽管 6 增强,但 1-6 蓝移了 55-60 nm,发射强度降低。发光特