The novel tetraphenylethylene derivative 4-methyl-N-[3-(1,2,2-triphenylethenyl)phenyl]benzenesulfonamide (abbreviated as MTBF), C33H27NO2S, was synthesized successfully and characterized by single-crystal X-ray diffraction, high-resolution mass spectroscopy and 1H NMR spectroscopy. MTBF crystallizes in the centrosymmetric monoclinic space group P21/c. In the crystal structure, the MTBF molecules are connected into a one-dimensional band and then a two-dimensional sheet by hydrogen bonds of the N—H...O and C—H...O types. The sheets are further linked to produce a three-dimensional network via C—H...π interactions. The molecules aggregate via these intermolecular forces, which restrain the intramolecular motions (RIM) and decrease the energy loss in the aggregation state, so as to open the radiative channels, and thus MTBF exhibits excellent fluorescence by aggregation-induced emission (AIE) enhancement.
成功合成了新型四苯基乙烯衍生物 4-甲基-N-[3-(1,2,2-三苯基乙烯基)苯基]苯磺酰胺(简称 MTBF)(C33H27NO2S),并通过单晶 X 射线衍射、高分辨率质谱和 1H NMR 光谱对其进行了表征。MTBF 晶型为中心对称单斜空间群 P21/c。在晶体结构中,MTBF 分子通过 N-H...O 和 C-H...O 型氢键连接成一维带状和二维片状。这些薄片通过 C-H...π 相互作用进一步连接成三维网络。分子通过这些分子间作用力聚集在一起,抑制了分子内运动(RIM),减少了聚集状态下的能量损失,从而打开了辐射通道,因此 MTBF 通过聚集诱导发射(AIE)呈现出极佳的荧光增强效果。