A Cu-I-Based Metallo-Supramolecular Gel-Like Material Built from a Library of Oligomeric Ligands Featuring Exotopic 1,10-Phenanthroline Units

作者：Berroca Jose Augusto; Albano Simone; Mandolini Luigi; Di Stefano Stefano^*

来源：European Journal of Organic Chemistry, 2015, 2015(34): 7504-7510.

DOI：10.1002/ejoc.201501201

• Macrocyclic ligands
• Gels
• Metathesis
• Dynamic covalent chemistry
• Copper

A 22-membered cyclic alkene C-1 incorporating an exotopic 1,10-phenanthroline nucleus in the ring skeleton has been synthesized and subjected to ring-opening metathesis polymerization (ROMP) in dilute dichloromethane solution at varying monomer concentrations (c(mon)). The resultant libraries of macrocyclic oligomers were used as ligands for the generation of main-chain metal-ligand oligomeric/polymeric complexes taking advantage of the strong affinity of 1,10-phenanthroline derivatives for Cu-I. The formation of a gel-like material only upon addition of [Cu(CH3CN)(4)]PF6 to the most concentrated library (c(mon)=60mM) was explained as arising from the presence of significant amounts of trimeric and higher oligomeric macrocycles C-i (i >= 3), acting as cross-linking components.

• 出版日期2015-12