华东理工大学曲大辉团队报道了具有正交可调簇发光的动态超分子H键网络。相关研究成果于2022年11月15日发表在国际顶尖学术期刊《德国应用化学》。

启用动态可调发射系统为构建智能材料提供了机会。团簇发光作为一种非常规发光，在基础科学和应用科学中受到越来越多的关注。

该文中，研究人员报道了一种具有可调谐簇发光的超分子聚（二硫化物）网络。网状氢键协同动态网络的刚性和迁移性，并赋予所得材料机械适应性和鲁棒性，同时在77K下实现高效的团簇发光和磷光。正交可调发光通过两种方式实现，即缓慢的主链二硫交换和快速的侧链金属配位。进一步探索可持续材料内在动态网络的可再加工性和化学闭环循环是可行的。研究认为，动态化学的协同策略为智能发射材料提供了新的途径和潜在的机会。

附：英文原文

Title: A Dynamic Supramolecular H-bonding Network with Orthogonally Tunable Clusteroluminescence

Author: Chen-Yu Shi, Dan-Dan He, Bang-Sen Wang, Qi Zhang, He Tian, Da-Hui Qu

Issue&Volume: 2022-11-15

Abstract: Enabling dynamically tunable emissive systems offers opportunities for constructing smart materials. Clusteroluminescence, as unconventional luminescence, has attracted increasing attention in both fundamental and applied sciences. Herein, we report a supramolecular poly(disulfides) network with tunable clusteroluminescence. The reticular H-bonds synergize the rigidity and mobility of dynamic networks, and endow the resulting materials with mechanical adaptivity and robustness, simultaneously enabling efficient clusteroluminescence and phosphorescence at 77 K. Orthogonally tunable luminescence are achieved in two manners, i.e., slow backbone disulfide exchange and fast side-chain metal coordination. Further exploration of the reprocessability and chemical closed-loop recycling of intrinsic dynamic networks for sustainable materials is feasible. We foresee that the synergistic strategy of dynamic chemistry offers a novel pathway and potential opportunities for smart emissive materials.

DOI: 10.1002/anie.202214422

Source: https://onlinelibrary.wiley.com/doi/epdf/10.1002/anie.202214422