Probing a Hidden World of Molecular Self-Assembly: Concentration-Dependent, Three-Dimensional Supramolecular Interconversions
作者:Xiaocun Lu、Xiaopeng Li、Kai Guo、Ting-Zheng Xie、Charles N. Moorefield、Chrys Wesdemiotis、George R. Newkome
DOI:10.1021/ja511341z
日期:2014.12.31
A terpyridine-based, concentration-dependent, facile self-assembly process is reported, resulting in two three-dimensional metallosupramolecular architectures, a bis-rhombus and a tetrahedron, which are formed using a two-dimensional, planar, tris-terpyridine ligand. The interconversion between these two structures is concentration-dependent: at a concentration higher than 12 mg mL(-1), only a bis-rhombus
3D helical and 2D rhomboidal supramolecules: stepwise self-assembly and dynamic transformation of terpyridine-based metallo-architectures
作者:Die Liu、Zhilong Jiang、Ming Wang、Xiaoyu Yang、Haisheng Liu、Mingzhao Chen、Charles N. Moorefield、George R. Newkome、Xiaopeng Li、Pingshan Wang
DOI:10.1039/c6cc04482d
日期:——
New routes to 2D and 3D rhomboids show promise for complex materials construction.
新的2D和3D菱形路径为复杂材料的构建提供了希望。
Stoichiometric Self-Assembly of Shape-Persistent 2D Complexes: A Facile Route to a Symmetric Supramacromolecular Spoked Wheel
作者:Jin-Liang Wang、Xiaopeng Li、Xiaocun Lu、I-Fan Hsieh、Yan Cao、Charles N. Moorefield、Chrys Wesdemiotis、Stephen Z. D. Cheng、George R. Newkome
DOI:10.1021/ja203645m
日期:2011.8.3
An approach to multicomponent coordination-driven self-assembly of the first terpyridine-based, shape-persistent, giant two-dimensional D(6h) supramacromolecular spokedwheel is reported. Mixing core T6, rim T3, and Zn(II) or Cd(II) ions in a stoichiometric ratio (1:6:12) permitted the selective generation of a highly symmetric spokedwheel in 94% isolated yield via geometric and thermodynamic control
报道了第一个基于三联吡啶的、形状持久的、巨型二维 D(6h) 超大分子辐条轮的多组分协调驱动自组装的方法。以化学计量比 (1:6:12) 混合核心 T6、轮缘 T3 和 Zn(II) 或 Cd(II) 离子允许通过几何和热力学控制选择性生成高度对称的辐条轮,分离产率为 94%。这些产品的特点是将行波离子迁移质谱和 NMR 技术与 TEM 成像相结合,这与计算模拟一致。
A process is provided for precise self-assembly and re-arrangement of a three-dimensional terpyridine-based coordination complex. A plurality of terpyridine-containing ligands are reacted with at least one metal ion, in a pre-selected molar ratio, to form a self-assembled three-dimensional terpyridine-based coordination complex having a first configuration. A triggering event, such as exposure to light or dilution, causes the coordination complex to re-arrange to form at least two smaller, substantially identical, three-dimensional terpyridine-based coordination complexes, each having a second configuration that is different from the first configuration. Upon application of a second triggering event, such as concentration, the re-arrangement is reversed.