A Hydrogen‐Bonded Hexagonal Buckybowl Framework. (26th October 2017)

• Record Type: Journal Article
• Authors: Hisaki, Ichiro; Toda, Hideaki; Sato, Hiroyasu; Tohnai, Norimitsu; Sakurai, Hidehiro
• Is Part Of: Angewandte Chemie. Volume 129:Number 48(2017)
• Page Start: 15496
• Page End: 15500
• Publication Date: 2017-10-26
• Subjects: Buckybowls -- Druckresponsivität -- Hexagonale Gerüste -- Sumanene -- Wasserstoffbrücken; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201708115
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: A hydrogen‐bonded two‐dimensionally networked buckybowl architecture is presented. Two types of hexagonal network (HexNet) structures (CPSM‐1 andCPSM‐2 ) have been achieved based on a sumanene derivative (CPSM ) possessing 4, 4′‐dicarboxy‐ o ‐terphenyl groups in the periphery.CPSM‐1 has a waved HexNet structure with an alternate alignment of upward and downward bowls.CPSM‐2 has a bilayered HexNet structure composed of hamburger‐shaped dimers of the bowls. This demonstrates that non‐planar π‐systems can be networked two‐dimensionally by an appropriate supramolecular synthon to achieve structurally well‐defined unique bumpy π‐sheets. Furthermore, we revealed thatCPSM‐2 undergoes anisotropic shrinking along the c axis by 11 % under high pressure conditions (970 MPa). The shrinkage is brought about by offset sliding between bumpy π‐surfaces of the bilayered HexNet sheets.