Nano-Saturn with an ellipsoidal body: Anthracene macrocyclic RINgC70complex

Toyota S.; Yamamoto Y.; Wakamatsu K.; Tsurumaki E.; Muñoz-Castro A.

dc.contributor.author	Toyota S.
dc.contributor.author	Yamamoto Y.
dc.contributor.author	Wakamatsu K.
dc.contributor.author	Tsurumaki E.
dc.contributor.author	Muñoz-Castro A.
dc.date.accessioned	2020-09-02T22:29:22Z
dc.date.available	2020-09-02T22:29:22Z
dc.date.issued	2019
dc.identifier	10.1246/bcsj.20190133
dc.identifier.citation	92, 10, 1721-1728
dc.identifier.issn	00092673
dc.identifier.uri	https://hdl.handle.net/20.500.12728/6431
dc.description	A macrocyclic compound consisting of six anthracene units formed a Saturn-shaped complex with fullerene C70as the ellipsoidal guest. The association constant of the host-guest complex was determined by the NMR titration method to be 4.6 © 103L mol11, twice than observed for the C60counterpart. X-ray analysis revealed that the guest molecule was included in the center of the cavity in nearly standing orientation, whereas DFT calculations predicted the complexation in various orientations. In any complex structure, CH£π interactions play an important role in forming the ringbody supramolecular system. The intraannular hydrogen atoms in the ring moiety were deshielded upon complexation, and this phenomenon is discussed on the basis of the NMR shielding of C70and the calculated structures. In spite of the different relative orientations of C70, the host-guest formation strength remains similar exposing the great versatility of the host capabilities against non-spherical fullerenes. © 2019 The Chemical Society of Japan.
dc.language.iso	en
dc.publisher	Chemical Society of Japan
dc.subject	Anthracene
dc.subject	Macrocycle
dc.subject	Supramolecular system
dc.subject	Atoms
dc.subject	Energy dispersive X ray analysis
dc.subject	Fullerenes
dc.subject	Planets
dc.subject	Supramolecular chemistry
dc.subject	Titration
dc.subject	X ray diffraction analysis
dc.subject	Association constant
dc.subject	Complex structure
dc.subject	Host guest complexes
dc.subject	Macrocycles
dc.subject	Macrocyclic compounds
dc.subject	Pi interactions
dc.subject	Relative orientation
dc.subject	Supramolecular systems
dc.subject	Anthracene
dc.title	Nano-Saturn with an ellipsoidal body: Anthracene macrocyclic RINgC70complex
dc.type	Article

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Nano-Saturn with an ellipsoidal body: Anthracene macrocyclic RINgC70complex

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