Ontology highlight
ABSTRACT:
SUBMITTER: Liu W
PROVIDER: S-EPMC4636930 | biostudies-literature | 2015 Nov
REPOSITORIES: biostudies-literature
Organic letters 20151009 21
A macrocyclic tetralactam is threaded by a complementary squaraine dye that is flanked by two polyethylene glycol chains to produce a pseudorotaxane complex with favorable near-infrared fluorescence properties. The association thermodynamics and kinetics were measured for a homologous series of squaraines with different N-alkyl substituents at both ends of the dye. The results show that subtle changes in substituent steric size have profound effects on threading kinetics without greatly altering ...[more]