Jump to main content
Jump to site search


Hydrogen-bonded six-component assembly for capsule formation based on tetra(4-pyridyl)cavitand and isophthalic acid linker and its application to photoresponsive capsule

Author affiliations

Abstract

Two molecules of tetra(4-pyridyl)cavitand 1 and four molecules of isophthalic acid linker 2a with a triethylene glycol monomethyl ether (TEG) group self-assembled into a six-component capsule 12·2a4 through eight pyN⋯HO2C hydrogen bonds, which encapsulates one molecule of guest G such as bis(4-acetoxyphenyl)acetylene and hexakis(4-iodophenyl)benzene to form G@(12·2a4). Guest-encapsulation ability and selectivity of 12·2a4 were revealed. trans-5-(p-Substituted-phenylazo)isophthalic acid with two dichotomous branching TEG groups trans-2b serves as a photoresponsive linker to form 12·(trans-2b)4, which moderately reduced guest-encapsulation ability upon photoisomerization (at the photostationary state, 10% guest release upon subunit-trans-2b/subunit-cis-2b = 18 : 82).

Graphical abstract: Hydrogen-bonded six-component assembly for capsule formation based on tetra(4-pyridyl)cavitand and isophthalic acid linker and its application to photoresponsive capsule

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Aug 2018, accepted on 28 Sep 2018 and first published on 28 Sep 2018


Article type: Paper
DOI: 10.1039/C8OB02115E
Citation: Org. Biomol. Chem., 2018, Advance Article
  •   Request permissions

    Hydrogen-bonded six-component assembly for capsule formation based on tetra(4-pyridyl)cavitand and isophthalic acid linker and its application to photoresponsive capsule

    Y. Togari, S. Hirota, H. Kitagawa, Y. Tsukamoto and K. Kobayashi, Org. Biomol. Chem., 2018, Advance Article , DOI: 10.1039/C8OB02115E

Search articles by author

Spotlight

Advertisements