Dual role of silver in a fluorogenic N-squaraine probe based on Ag(I)–π interactions

Manel Vega; Salvador Blasco; Enrique García-España; Bartolomé Soberats; Antonio Frontera; Carmen Rotger; Antonio Costa

doi:10.1039/D1DT01408K

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Dual role of silver in a fluorogenic N-squaraine probe based on Ag(i)–π interactions†

Manel Vega,

^a Salvador Blasco,^b Enrique García-España,

^b Bartolomé Soberats,

^a Antonio Frontera,

^a Carmen Rotger

^a and Antonio Costa

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, Universitat de les Illes Balears, Ctra. Valldemossa km 7.5, Palma, Spain
E-mail: antoni.costa@uib.es

^b Instituto de Ciencia Molecular (ICMOL). Universidad de Valencia, C/Catedrático José Beltrán 2, 46980 Valencia, Spain

Abstract

In the presence of Ag(I), the monoanion of cyano-N-squaraine (I) generates an intense fluorescence turn-on response. Experimental evidence and DFT calculations reveal a sequence of deprotonation-coordination events in which the Ag(I) ions play a dual role as a Lewis acid and coordinating metal. The observed effect is highly selective for Ag(I) compared to other metals.

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Article information

DOI: https://doi.org/10.1039/D1DT01408K
Article type: Communication
Submitted: 28 Apr 2021
Accepted: 14 Jun 2021
First published: 14 Jun 2021

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Dalton Trans., 2021,50, 9367-9371

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Dual role of silver in a fluorogenic N-squaraine probe based on Ag(I)–π interactions

M. Vega, S. Blasco, E. García-España, B. Soberats, A. Frontera, C. Rotger and A. Costa, Dalton Trans., 2021, 50, 9367 DOI: 10.1039/D1DT01408K

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Dalton Transactions

Dual role of silver in a fluorogenic N-squaraine probe based on Ag(i)–π interactions†

Abstract

Supplementary files

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Dual role of silver in a fluorogenic N-squaraine probe based on Ag(I)–π interactions

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