Re-arrangements of 4-[(4H-1,2,4-triazol-4-ylimino)methyl]phenol with different inorganic anions: Crystal structure and fluorescence properties
作者:Ya-Wen Zhang、Jing-Wen Wang、Hong-Shuai Wu、Ming-Xin Wang、Yang-Hui Luo、Bai-Wang Sun
DOI:10.1016/j.poly.2017.05.025
日期:2017.9
while salts 2–4 all formed 2D network structures through O⋯O interactions. The protonated L+s adopt face-to-face slipped π-stacked arrangement in salts 1 and 3, while display monomer arrangements in 2 and 4, the latter can be attribute to the entrapment of heavy anions in the crystal lattices. Optical-properties measurements of these four salts have shown L+ arrangements dependent on solid-state properties:
摘要荧光材料有许多有趣的应用,但是仍然难以控制有机材料的发光,特别是在溶液和固态下保持相同的发光,这是各种成像应用所关注的特性。在这项工作中,无机阴离子对一系列有机盐L + Cl-(1),L + ClO4-(2),L + NO3-·H2O(3)的晶体结构和物理化学性质的影响,研究了2L + SO42-·2H2O(4)(L = 4-[(4H-1,2,4-三唑-4-ylimino)甲基]苯酚)。单晶X射线分析表明,盐1形成了通过H⋯O相互作用连接的线性结构,而盐2-4则都通过O⋯O相互作用形成了2D网络结构。质子化的L +在盐1和盐3中采用面对面滑动π堆叠的方式排列,而在2和4中显示单体排列,后者可以归因于重阴离子在晶格中的截留。这四种盐的光学性质测量表明L +的排列取决于固态性质:盐1和3显示出较宽的发射带(λ1= 478 nm,λ2= 487 nm),相对于其荧光约有60 nm的红移在溶剂