Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 7, Pages 3498-3503Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202012901
Keywords
chirality; host– guest systems; metallo-tweezers; platinum; supramolecular chemistry
Categories
Funding
- National Natural Science Foundation of China [21922110, 21871245, 21674106]
- Fundamental Research Funds for the Central Universities [WK3450000005]
Ask authors/readers for more resources
A strategy to construct platinum(II)-based tweezer/guest complexes stabilized by two-fold donor-acceptor and metal-metal interactions has been developed to address the susceptibility issue of chirogenic signals towards environmental variations. The induced chiroptical effects show outstanding solvent and temperature tolerance, attributed to the balance between electrostatic and desolvation effects for the involved non-covalent interactions. Additionally, hierarchical and multi-component supramolecular assembly of tweezer/guest complexes provide a convenient way to modulate chirogenic signals for their intensities.
Supramolecular chirogenesis has emerged as an effective strategy to access symmetry breaking in artificial systems. However, the chirogenic signals suffer from high susceptibility toward environmental variations. An effective strategy has been developed to address this issue by constructing platinum(II)-based tweezer/guest complexes stabilized by two-fold donor-acceptor and Pt-II-Pt-II metal-metal interactions. Upon guest encapsulation, the two pincers on the achiral Pt-II tweezer undergo a stereospecific twist to minimize steric repulsion, thus locking tweezer/guest complexes into the preferred chiral conformations. The induced chiroptical effects display outstanding solvent and temperature tolerance, ascribed to the balance between electrostatic and desolvation effects for the involved non-covalent interactions. Moreover, hierarchical and multi-component supramolecular assembly of tweezer/guest complexes provide a convenient way to modulate chirogeneic signals for their intensities.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available