Multiple Stimuli-Responsive Conformational Exchanges of Biphen[3]arene Macrocycle.
Molecules
; 25(24)2020 Dec 08.
Article
in En
| MEDLINE
| ID: mdl-33302382
Conformational exchanges of synthetic macrocyclic acceptors are rather fast, which is rarely studied in the absence of guests. Here, we report multiple stimuli-responsive conformational exchanges between two preexisting conformations of 2,2',4,4'-tetramethoxyl biphen[3]arene (MeBP3) macrocycle. Structures of these two conformations are both observed in solid state, and characterized by 1H NMR, 13C NMR and 2D NMR in solution. In particular, conformational exchanges can respond to solvents, temperatures, guest binding and acid/base addition. The current system may have a role to play in the construction of molecular switches and other stimuli-responsive systems.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Models, Molecular
/
Macrocyclic Compounds
/
Molecular Conformation
Language:
En
Journal:
Molecules
Journal subject:
BIOLOGIA
Year:
2020
Document type:
Article
Affiliation country:
China
Country of publication:
Switzerland