Nano-Saturn: Experimental Evidence of Complex Formation of an Anthracene Cyclic Ring with C60.
Angew Chem Int Ed Engl
; 57(27): 8199-8202, 2018 07 02.
Article
em En
| MEDLINE
| ID: mdl-29846033
ABSTRACT
An anthracene cyclic hexamer was synthesized by the coupling reaction as a macrocyclic hydrocarbon host. This disk-shaped host included a C60 guest in 11 ratio to form a Saturn-type supramolecular complex in solution and in crystals. X-ray analysis unambiguously revealed that the guest molecule was accommodated in the middle of the host cavity with several CHâ
â
â
π contacts. The association constant Ka determined by NMR titration measurements was 2.3×103 â
L mol-1 at 298â
K in toluene. The structural features and the role of CHâ
â
â
π interactions are discussed with the aid of DFT calculations.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Japão