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A Cu I ‐Based Metallo‐Supramolecular Gel‐Like Material Built from a Library of Oligomeric Ligands Featuring Exotopic 1,10‐Phenanthroline Units
Author(s) -
Berrocal José Augusto,
Albano Simone,
Mandolini Luigi,
Di Stefano Stefano
Publication year - 2015
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201501201
Subject(s) - chemistry , romp , monomer , supramolecular chemistry , polymer chemistry , phenanthroline , metathesis , alkene , ligand (biochemistry) , polymerization , dichloromethane , ring opening polymerization , ring (chemistry) , ruthenium , stereochemistry , polymer , crystallography , molecule , organic chemistry , solvent , catalysis , biochemistry , receptor
Abstract 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(CH 3 CN) 4 ]PF 6 to the most concentrated library ( c mon = 60 m M ) 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.