Inhibiting copper(i) iodide aggregate assembly in the solid state via macrocyclic encapsulation
摘要:
本文介绍了三种含二胺大环配体的 CuI 复合物。CuI 与不同环尺寸的大环反应会在固态下产生不同程度的 (CuI)n 聚集。X 射线衍射研究显示,环尺寸较小的大环产生简单的单核 CuI 二亚胺配合物,而环尺寸较大的大环则产生双核 (CuI)2 分子,并包含在配体环中。由此可见,大环决定了固态中 CuI 的聚集程度。
Inhibiting copper(i) iodide aggregate assembly in the solid state via macrocyclic encapsulation
摘要:
本文介绍了三种含二胺大环配体的 CuI 复合物。CuI 与不同环尺寸的大环反应会在固态下产生不同程度的 (CuI)n 聚集。X 射线衍射研究显示,环尺寸较小的大环产生简单的单核 CuI 二亚胺配合物,而环尺寸较大的大环则产生双核 (CuI)2 分子,并包含在配体环中。由此可见,大环决定了固态中 CuI 的聚集程度。
By incorporating a 6,6'-diphenyl-2,2'-bipyridine (dpbipy) fragment in a ring, endo coordination of a ruthenium(II) center is performed selectively and almost quantitatively. The threaded system, containing a helical fragment, could be fully characterized. When the terminal functions of the rod-shaped helical complex threaded through the macrocycle are phenol groups, the complete rotaxane is prepared
Light-Driven Expulsion of the Sterically Hindering Ligand L in Tris-diimine Ruthenium(II) Complexes of the Ru(phen)<sub>2</sub>(L)<sup>2+</sup> Family: A Pronounced Ring Effect
Three new ruthenium(II) complexes have been prepared which contain two 1,10-phenanthroline units and a third stericallyhindering chelate. In one case, the hindering ligand is a disubstituted 2,2'-bipyridine (bpy) attached to two very bulky manisyl groups. The two other systems are similar in terms of size of the hindering groups (anisyl substituents) located close to the central metal. The complexes
制备了三种新的钌(II)配合物,其中包含两个1,10-菲咯啉单元和第三个空间位阻螯合物。在一种情况下,阻碍配体是与两个非常大的扁桃基连接的二取代的2,2'-联吡啶(bpy)。其他两个系统在靠近中心金属的位阻基团(茴香基取代基)的大小方面相似。本报告中研究的复合物旨在为未来的光驱动分子机器提供构建基块。因此,已通过紫外可见光谱和1 H NMR研究了位阻螯合物的光化学排出。出人意料的是,含有甘露糖基的配合物证明是光化学惰性的,这表明太大的基团起着保护作用而不是被分解而不是起稳定作用的作用。对于另外两个系统,观察到了显着的环效应:而无环系统经历了基于Bipy的配体的快速光化学驱除,在环状配合物中,掺入Bipy的环的解配效率比环上的无环配体低约5倍。前一种情况。这些关于钌(II)配合物的光化学行为对其结构性质的强烈依赖性的观察结果通过对三种化合物的X射线衍射研究得到了证实。
Inhibiting copper(i) iodide aggregate assembly in the solid state via macrocyclic encapsulation
作者:David J. Smith、Alexander J. Blake、Claire Wilson、Neil R. Champness
DOI:10.1039/c1dt10815h
日期:——
Three CuI complexes of diimine-bearing macrocyclic ligands are described. Reaction of CuI with macrocycles of different ring size gives rise to differing degrees of aggregation of (CuI)n in the solid state. X-Ray diffraction studies reveal that whereas macrocycles with smaller ring sizes give rise to simple mononuclear CuI diimine complexes, a macrocycle of larger ring size affords a dinuclear (CuI)2 moiety, encompassed within the ligand ring. Thus, the macrocycle can be seen to determine the extent of CuI aggregation in the solid state.
本文介绍了三种含二胺大环配体的 CuI 复合物。CuI 与不同环尺寸的大环反应会在固态下产生不同程度的 (CuI)n 聚集。X 射线衍射研究显示,环尺寸较小的大环产生简单的单核 CuI 二亚胺配合物,而环尺寸较大的大环则产生双核 (CuI)2 分子,并包含在配体环中。由此可见,大环决定了固态中 CuI 的聚集程度。