A Bowl-Shaped Circular Trinuclear Helicate Generated from a TiO<sub>4</sub>N<sub>2</sub>Motif by a Multicomponent Self-Assembly Approach
作者:Pierre Mobian、Nathalie Baradel、Nathalie Kyritsakas、Georges Khalil、Marc Henry
DOI:10.1002/chem.201405339
日期:2015.2.2
The synthesis of a bowl‐shaped trinuclear circular titanium‐based helicate is reported. The strategy allowing access to this neutral architecture is based on a multicomponent self‐assembly approach in which the ligands involved in the process are a bis‐biphenol strand and 2,2′‐ bipyrimidine. By reacting the bis‐biphenol ligand and 2,2′‐bipyrimidine with an equimolar amount [Ti(OiPr)4], a bowl‐shaped
报道了碗形三核圆形钛基螺旋形的合成。允许使用这种中性结构的策略是基于多组分自组装方法,其中该过程涉及的配体是双-双酚链和2,2'-双嘧啶。通过以等摩尔量[Ti(O i Pr)4 ]使双-双酚配体和2,2'-联嘧啶反应,通过形成18个新的配位键获得碗形结构。该聚集体由三个八面体TiO 4 N 2组成与相关物种相比,节点在解决方案中显示出异常高的稳定性。另外,通过改变初始组分的化学计量,获得了两个组件,其中包含两个由2,2'-联嘧啶配体桥接的钛中心。报告了这些物种的晶体结构。