Luminescent lanthanide (Eu(<scp>iii</scp>)) cross-linked supramolecular metallo co-polymeric hydrogels: the effect of ligand symmetry
作者:Samuel J. Bradberry、Garret Dee、Oxana Kotova、Colin P. McCoy、Thorfinnur Gunnlaugsson
DOI:10.1039/c8cc08888h
日期:——
Two lanthanide luminescent naphthyl-dipicolinic amide (dpa) methacrylate monomers for the synthesis of grafted supramolecular co-polymer gels (hydrogels), and their use as additional crosslinks in robust covalently cross-linked HEMA hydrogels is presented; the results demonstrate the importance of the ligand symmetry for the Eu(III) emission from the hydrogels.
Europium Directed Synthesis of Enantiomerically Pure Dimetallic Luminescent “Squeezed” Triple-Stranded Helicates; Solution Studies
作者:Christophe Lincheneau、Robert D. Peacock、Thorfinnur Gunnlaugsson
DOI:10.1002/asia.200900515
日期:2010.3.1
Triple‐stranded helix: The formation of two novel chiral enantiomerially puredimetallic (EuIII) triple stranded helicates (L3Eu2) was monitored in solution by observing the changes in the EuIII centered emission as well as in the absorption and the fluorescence spectra of ligands 3 and 4. Using CD and circular polarized luminescence (CPL), arising from the EuIII centers, the absolute configuration
三链螺旋:通过观察Eu III中心发射,吸收和荧光的变化,监测溶液中两个新型手性对映体纯双金属(Eu III)三链螺旋(L 3 Eu 2)的形成配体3和4的光谱。使用从Eu III中心产生的CD和圆偏振发光(CPL),分配了这些手性超分子结构的绝对构型。