Tunable fluorene-based dynamers through constitutional dynamic chemistry.
Dynamic covalent iminofluorene-based oligomers and polymers have been generated. They undergo constitutional recomposition under the effect of two parameters, acidity and ZnII metal ions. As a result, marked changes in physical properties take place. The results illustrate the response of such a dynamic system to chemical effectors (H+ nd ZnII), thus demonstrating the adaptive behavior of the system under the pressure of external factors. They also point to the possibility of modulating optical properties (UV-visible absorption and fluorescence) by constitutional recomposition in response to a specific trigger. Such features allow the development of dynamic materials, the functional properties of which may respond to external stimuli.
Giuseppone
Nicolas
N
Institut de Science et d'Ingénierie Supramoléculaires (ISIS), 8, allée Gaspard-Monge, BP 70028, 67083 Strasbourg cedex and Collège de France, 75005 Paris, France.
Fuks
Gad
G
Lehn
Jean-Marie
JM