Premium
Unbiased Rotational Motions of an Ellipsoidal Guest in a Tight Yet Pliable Host
Author(s) -
Sun Zhe,
Mio Tatsuru,
Okada Tomohiko,
Matsuno Taisuke,
Sato Sota,
Kono Hirohiko,
Isobe Hiroyuki
Publication year - 2019
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.201812771
Subject(s) - supramolecular chemistry , host (biology) , ellipsoid , property (philosophy) , materials science , nanotechnology , chemical physics , crystallography , physics , chemistry , crystal structure , biology , ecology , astronomy , philosophy , epistemology
In the design of machinery such as steel bearings, a fundamental understanding of material characteristics provides an indispensable basis for the design. Although hydrocarbon cycloarylenes have started to be used for providing unique supramolecular bearings with anomalous dynamic behaviors, their fundamental understanding is immature. A unique property of the cycloarylene host is now reported: the cyclic host is so pliable that it tracks the orientational changes of the ellipsoidal guest, that is, C 70 fullerene. Unique structures of the complex were revealed by spectroscopic and crystallographic analyses, and additional theoretical investigations deepened our understanding by revealing the structural changes associated with unbiased rotational motions.