Shape-Persistent Oxa- and Aza-calix[4]arene Hybrid Molecular Cage and Naked Eye Sensing of Fluoride

An oxa- and aza-calix[4]­arene hybrid molecular cage with a large, shape-persistent cavity wrapped by aromatic rings was designed and synthesized via multifold efficient SNAr reactions. X-ray single-crystal analysis revealed that two THF molecules were encapsulated in the central cavity. Selective s...

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Bibliographic Details
Published inOrganic letters Vol. 23; no. 16; pp. 6435 - 6438
Main Authors Li, Yong-Xue, Xue, Min, Yang, Yong
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 20.08.2021
Amer Chemical Soc
Subjects
aromatic hydrocarbons
chemical structure
Chemistry
Chemistry, Organic
color
fluorides
Physical Sciences
Science & Technology
solvents
X-radiation
Online AccessGet full text
ISSN1523-7060
1523-7052
1523-7052
DOI10.1021/acs.orglett.1c02255

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Summary:An oxa- and aza-calix[4]­arene hybrid molecular cage with a large, shape-persistent cavity wrapped by aromatic rings was designed and synthesized via multifold efficient SNAr reactions. X-ray single-crystal analysis revealed that two THF molecules were encapsulated in the central cavity. Selective sensing of F– in apolar solvent leads to naked eye discriminable color change. Addition of CH3OH would recover the color of the molecular cage.
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content type line 23
ISSN:1523-7060
1523-7052
1523-7052
DOI:10.1021/acs.orglett.1c02255