A Hydrogen‐Bonded Hexagonal Buckybowl Framework

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  • Ichiro Hisaki
    Department of Material and Life Science Graduate School of Engineering Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
  • Hideaki Toda
    Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
  • Hiroyasu Sato
    Rigaku Corporation 3-9-12 Matsubara-cho Akishima Tokyo 196-8666 Japan
  • Norimitsu Tohnai
    Department of Material and Life Science Graduate School of Engineering Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
  • Hidehiro Sakurai
    Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan

説明

<jats:title>Abstract</jats:title><jats:p>A hydrogen‐bonded two‐dimensionally networked buckybowl architecture is presented. Two types of hexagonal network (HexNet) structures (<jats:bold>CPSM‐1</jats:bold> and <jats:bold>CPSM‐2</jats:bold>) have been achieved based on a sumanene derivative (<jats:bold>CPSM</jats:bold>) possessing 4,4′‐dicarboxy‐<jats:italic>o</jats:italic>‐terphenyl groups in the periphery. <jats:bold>CPSM‐1</jats:bold> has a waved HexNet structure with an alternate alignment of upward and downward bowls. <jats:bold>CPSM‐2</jats:bold> 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 that <jats:bold>CPSM‐2</jats:bold> 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.</jats:p>

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