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A Molecular Ball Bearing Mediated by Multiligand Exchange in Concert
Author(s) -
Hiraoka Shuichi,
Hirata Kaori,
Shionoya Mitsuhiko
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200453753
Subject(s) - schematic , denticity , ball (mathematics) , hexa , bearing (navigation) , chemistry , ligand (biochemistry) , representation (politics) , stereochemistry , crystallography , computer science , physics , engineering , geometry , mathematics , receptor , artificial intelligence , political science , electrical engineering , biochemistry , politics , law , crystal structure
A thrust in the right direction : Two different disk‐shaped ligands (a tris‐monodentate and a hexa‐monodentate ligand) and three Ag + ions have been used as bearings and balls, respectively, in the construction of a molecular thrust ball bearing (see schematic representation). Rotation occurs through a combination of intramolecular, reversible multipoint ligand exchange and flip motions that act in concert.