Anion‐Coordination‐Assisted Assembly of Supramolecular Charge‐Transfer Complexes Based on Tris(urea) Ligands
作者:Dan Zhang、Le‐Kai Hou、Qiang Zhang、Jia‐Wei He、Hong‐Jian Feng、Frank Würthner、Xiao‐Juan Yang、Biao Wu
DOI:10.1002/chem.201905021
日期:2020.1.27
electron-rich (donor, D) and electron-deficient (acceptor, A) molecules (or moieties) have attracted considerable attention due to their fascinating structures and potential applications. Herein, we demonstrate that anion coordination is a promising strategy to promote CT complex formation between anion-binding, electron-rich tris(urea) donor ligands (D) and electron-deficient viologen cation acceptors (A), which
由富电子(供体,D)和电子不足(受体,A)分子(或部分)之间的非共价键形成的电荷转移(CT)络合物由于其引人入胜的结构和潜在的应用而备受关注。在本文中,我们证明了阴离子配位是一种有前景的策略,可促进阴离子结合,富电子的三(脲)供体配体(D)和缺电子的紫罗兰色阳离子受主(A)之间形成CT络合物,从而形成共晶。无限⋅⋅⋅DADA⋅⋅⋅或离散(圆形DADA或三层DAD)π堆叠相互作用。通过X射线衍射,UV / Vis光谱,电导率测量,电荷位移曲线(CDC)计算和DFT计算研究了这些CT复合物。