Anion recognition by anthracene appended ortho-aminomethylphenylboronic acid: a new PET based sensing mechanism

2021 ◽  
Author(s):  
Luis Ramón Ortega-Valdovinos ◽  
Josue Valdes-García ◽  
Ivan J. Bazany-Rodríguez ◽  
José Carlos Lugo González ◽  
Alejandro Dorazco-González ◽  
...  
Keyword(s):  
Anion Recognition ◽  
Inorganic Anions ◽  
Sensing Mechanism ◽  
11B Nmr ◽  
Nmr Titrations

Interactions of anthracene appended ortho-aminomethylphenylboronic acid 1 with 20 organic and inorganic anions have been studied by fluorescence, 1H and 11B NMR titrations in DMSO. Carboxylate, phosphate and sulphate anions...

Trans-4-[4-(dimethylamino)styryl]-1-methylpyridinium Iodide@Hemimethylcucurbit[6]uril Fluorescent Probe for Anion Recognition

2019 ◽  
Vol 72 (7) ◽  
pp. 533 ◽  
Author(s):  
Sai Huang ◽  
Mei Yang ◽  
Xin-Yu Deng ◽  
Qian Jiang Zhu ◽  
Ying Huang ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Fluorescent Probe ◽  
Systematic Study ◽  
Anion Recognition ◽  
Fluorescence Emission ◽  
Inorganic Anions ◽  
Strong Fluorescence ◽  
Interaction System ◽  
Hemicyanine Dye ◽  
Guest System

In the present work, a host–guest system of a hemimethyl-substituted cucurbit[6]uril derived from 3α-methyl-glycoluril (HMeQ[6]) and a hemicyanine dye, trans-4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide (t-DSMI) showing strong fluorescence emission has been evaluated as a fluorescent probe. The results of a preliminary systematic study on the detection of a series of inorganic anions have revealed that this Q[n]-based host–guest fluorescent probe shows clear responses to BF4− and H2PO4− anions through distinct fluorescence quenching. Application of this Q[n]-based host–guest interaction system in anion recognition or detection opens a new avenue in Q[n] chemistry.

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