Abstract
A 22-membered cyclic alkene C1 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 (cmon). 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 CuI. The formation of a gel-like material only upon addition of [Cu(CH3CN)4]PF6 to the most concentrated library (cmon = 60 mM) was explained as arising from the presence of significant amounts of trimeric and higher oligomeric macrocycles Ci (i ≥ 3), acting as cross-linking components. A gel-like material has been obtained by exo coordination of CuI to the phenanthroline moieties of a library of multitopic cyclic ligands.
Original language | English |
---|---|
Pages (from-to) | 7504-7510 |
Number of pages | 7 |
Journal | European Journal of Organic Chemistry |
Volume | 2015 |
Issue number | 34 |
DOIs | |
Publication status | Published - 1 Dec 2015 |
Keywords
- Copper
- Dynamic covalent chemistry
- Gels
- Macrocyclic ligands
- Metathesis