Formation of Enantiomerically Pure Luminescent Triple-Stranded Dimetallic Europium Helicates and Their Corresponding Hierarchical Self-Assembly Formation in Protic Polar Solutions.

Autor:	Barry DE; School of Chemistry and Trinity Biomedical Science Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland., Kitchen JA; Chemistry, School of Natural and Computational Sciences, Massey University, Auckland, New Zealand., Pandurangan K; School of Chemistry and Trinity Biomedical Science Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland., Savyasachi AJ; School of Chemistry and Trinity Biomedical Science Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland., Peacock RD; School of Chemistry, University of Glasgow, Glasgow G12 8QQ, Scotland., Gunnlaugsson T; School of Chemistry and Trinity Biomedical Science Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland.; Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, The University of Dublin, Dublin 2 D02 PN40, Ireland.
Jazyk:	angličtina
Zdroj:	Inorganic chemistry [Inorg Chem] 2020 Mar 02; Vol. 59 (5), pp. 2646-2650. Date of Electronic Publication: 2020 Feb 12.
DOI:	10.1021/acs.inorgchem.0c00058
Abstrakt:	Ditopic helicate ligands 1 and 2 were synthesized for the formation of dinuclear Eu III luminescent chiral helical assemblies (Eu 2 ·L 3 ) in competitive organic and protic solvent media. Spectroscopic analysis revealed formation of the 2:3 (Eu 2 ·L 3 ) and 2:2 (Eu 2 ·L 2 ) species in methanolic solutions. Circular dichroism and circularly polarized luminescence (CPL) spectroscopy confirmed the chiral purity of the helical systems, while scanning electron microscopy imaging demonstrated the formation of hierarchical self-assemblies with spherical morphologies.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu