Complete stereocontrol in the synthesis of macrocyclic lanthanide complexes : direct formation of enantiopure systems for circularly polarised luminescence applications

Evans, Nicholas H. and Carr, Rachel and Delbianco, Martina and Pal, Robert and Yufit, Dmitry S. and Parker, David (2013) Complete stereocontrol in the synthesis of macrocyclic lanthanide complexes : direct formation of enantiopure systems for circularly polarised luminescence applications. Dalton Transactions, 42 (44). pp. 15610-15616. ISSN 1477-9226

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Abstract

Mono-C-substitution of the 1,4,7-triazacyclononane ring induces formation of single enantiomers of Eu(III) complexes with nonadentate N6O3 ligands. The absolute configuration of each complex is determined by the stereogenicity of the C-substituent, revealed by comparison of the sign and sequence of CPL transitions for a series of complexes.