Supramolecular Assemblies of Dipyrrolyldiketone CuII Complexes
作者:Yohei Haketa、Hiromitsu Maeda
DOI:10.3390/molecules26040861
日期:——
building units of anion-responsive π-electronic molecules and ion-pairing assemblies. Here, we demonstrated that they form complexes with CuII characterized by planar geometries. The solid-state stacking assembledstructures, as revealed by single-crystal X-ray analysis, were modulated by the substitution of pyrrole units. The rectangular shapes of the CuII complexes resulted in the formation of mesophases
二吡咯二酮是阴离子响应 π 电子分子和离子对组装体的重要构建单元。在这里,我们证明它们与具有平面几何形状的 Cu II形成配合物。单晶X射线分析表明,固态堆叠组装结构是通过吡咯单元的取代来调制的。 Cu II配合物的矩形形状导致在引入脂肪链后形成中间相。
Solid-state hydrogen-bonding self-assemblies and keto–enol tautomerism of 1,3-dipyrrolyl-1,3-propanediones
Single-crystal X-ray analyses of various 1,3-dipyrrolyl-1,3-propanedione derivatives confirmed the formation of keto-based 1D N-H...O=C hydrogen-bonding chains and cis-enol-based hydrogen-bonding chains. The preferences for keto and enol tautomers in the solid state were found to depend significantly on the positions of substituents at pyrrole rings. -Aryl-substituted derivatives afford keto forms, while -alkyl- and -aryl-substituted derivatives provide cis-enol forms.