Yang Xinchun, Lu Ran, Xue Pengchong, Li Bin, Xu Defang, Xu Tinghua, Zhao Yingying
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China.
Langmuir. 2008 Dec 2;24(23):13730-5. doi: 10.1021/la8027226.
A diaryldiketopyrrolopyrrole derivative functionalized with phenothiazine moieties (DPPP) was synthesized and introduced into the ordered 4-(3,6-di-tert-butyl-9H-carbazol-9-yl)benzamide (TBCB) organogel system. It was found that TBCB-based gel became a scaffold to make DPPP molecules line up along the gel fibers, resulting in new self-assembled arrays, whose XRD patterns were quite different from those of the neat TBCB gel and DPPP crystal. In the composite gel, the occurrence of a partial energy transfer from the excited light-harvesting antenna of TBCB to the DPPP acceptor was confirmed on the basis of time-dependent and time-resolved fluorescence investigations. Remarkably, the composite gel could emit intense red light or purplish white light by tuning the excitation wavelength. Such ordered soft materials with color-tunable emission may possess potential applications in sensor and photonic devices.
合成了一种用吩噻嗪部分功能化的二芳基二酮吡咯并吡咯衍生物（DPPP），并将其引入有序的4-(3,6-二叔丁基-9H-咔唑-9-基)苯甲酰胺（TBCB）有机凝胶体系。结果发现，基于TBCB的凝胶成为了一个支架，使DPPP分子沿凝胶纤维排列，形成了新的自组装阵列，其X射线衍射图谱与纯TBCB凝胶和DPPP晶体的图谱有很大不同。在复合凝胶中，基于时间相关和时间分辨荧光研究，证实了从TBCB的激发光捕获天线到DPPP受体发生了部分能量转移。值得注意的是，通过调节激发波长，复合凝胶可以发出强烈的红光或紫白色光。这种具有颜色可调发射的有序软材料可能在传感器和光子器件中具有潜在应用。
