Self-Healing Metallacycle-Cored Supramolecular Polymers Based on a Metal–Salen Complex Constructed by Orthogonal Metal Coordination and Host–Guest Interaction with Amino Acid Sensing
Qian Zhang, Feng Chen, Xi Shen, He Tian, Huayu Qiu, Shouchun Yin, Peter J. Stang
Abstract
A platinum(II) metallacycle-cored supramolecular network based on a metal–salen complex was successfully constructed by two orthogonal noncovalent interactions (host–guest interactions and metal coordination interactions). The obtained metallo-supramolecular polymer could further form gels when the concentration of metallacycle 1 was 160.0 mM. This gel exhibited multiple stimuli-responsive gel–sol phase transitions under different stimuli, such as temperature, competitive guests, etc. Moreover, it exhibited good self-healing properties and could be used as a turn-off sensor for thiol-containing amino acids.
Topics & Concepts
MetallacycleSupramolecular chemistryMetalMaterials sciencePolymerPolymer chemistryHost (biology)ChemistryCrystallographyCrystal structurePhysicsComposite materialBiologyOpticsX-ray crystallographyDiffractionMetallurgyEcologyMetal-Organic Frameworks: Synthesis and ApplicationsSupramolecular Self-Assembly in MaterialsSupramolecular Chemistry and Complexes