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Europium Directed Synthesis of Enantiomerically Pure Dimetallic Luminescent “Squeezed” Triple‐Stranded Helicates; Solution Studies
Author(s) -
Lincheneau Christophe,
Peacock Robert D.,
Gunnlaugsson Thorfinnur
Publication year - 2010
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200900515
Subject(s) - europium , luminescence , triple helix , supramolecular chemistry , fluorescence , circular dichroism , chemistry , absorption (acoustics) , crystallography , materials science , stereochemistry , crystal structure , physics , optics , optoelectronics , composite material
Triple‐stranded helix : The formation of two novel chiral enantiomerially pure dimetallic (Eu III ) triple stranded helicates ( L 3 Eu 2 ) was monitored in solution by observing the changes in the Eu III 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 Eu III centers, the absolute configuration of these chiral supramolecular structures was assigned.