Aggregated coordination polymers of Ag + with a cysteine derivative ligand containing an AIEgen.

We investigated coordination polymers of Ag + with a cysteine-based thiol ligand designed to contain a tetraphenylethylene AIEgen (L- and D-1). The coordination polymers, forming in a variety of protic and aprotic organic solvents, such as THF, CH 3 CN and CH 3 OH, were shown to undergo aggregation in H 2 O/THF binary solvents at water volume fractions above 50%, where emission was substantially enhanced while the CD profile was reversed, yet the dependence of the CD signal on ee remained S-shaped for the polymers in the aprotic organic solvents THF and CH 3 CN, in contrast to that in protic solvents CH 3 OH and C 2 H 5 OH.