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. 2019 Jun 7;21(11):4336-4339.
doi: 10.1021/acs.orglett.9b01515. Epub 2019 May 24.

Synthesis and Anion Recognition Features of a Molecular Cage Containing Both Hydrogen Bond Donors and Acceptors

Ju Hyun Oh  1 , Jeong Hyeon Kim  1 , Dong Sub Kim  2 , Hye Jin Han  1 , Vincent M Lynch  2 , Jonathan L Sessler  2 , Sung Kuk Kim  1
Affiliations

Synthesis and Anion Recognition Features of a Molecular Cage Containing Both Hydrogen Bond Donors and Acceptors

Ju Hyun Oh et al. Org Lett. .

Abstract

A molecular cage, macrobicycle 2, containing amide and pyrrole groups as hydrogen-bonding donors and imine groups as hydrogen-bonding acceptors has been synthesized. Compound 2 was found to recognize tetrahedral oxyanions with high affinities, such as H2PO4-, HSO4-, SO42-, and HP2O73-, as well as the spherical halide anions, in chloroform. A single-crystal X-ray diffraction analysis revealed that compound 2 formed a 1:1 complex with H2PO4- in the solid state.

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