English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Proper design and development of near-infrared (NIR) fluorescent sensors is very important for applications in vivo. In this work, we theoretically designed a ratiometric and NIR fluorescent sensor based on the 10-hydroxybenzo[ h ]quinoline (HBQ) backbone via systematically investigating the substituent effects of electron-donating groups (-NH 2 , -CH 3 , -C(CH 3 ) 3 ) and electron-withdrawing groups (-NO 2 , -CN, -F, -Cl, -CF 3 ) at the proton donor site on the proton transfer process in HBQ in both the S 0 and the S 1 states. According to the calculated potential energy profiles along the proton transfer as well as the photophysical properties among all the derivatives, we successfully screened out that 7NH 2 -HBQ is a promising fluorescent sensor exhibiting the near IR emission spectra accompanied by the large Stokes shift. The potential use of 7NH 2 -HBQ for F - detection among anions (F - , Cl - , and Br - ) was further studied, and the results showed that 7NH 2 -HBQ is very sensitive and selective toward F - based on the intermolecular hydrogen bonding interaction between F - and OH bond, forming a new complex FAC S 0  . The ratiometric change in the fluorescence intensity could be induced by the H-F bond transfer from the O atom to the N atom in the S 1 state.

Theoretical Design of Near-Infrared Fluorescent Sensor for F Anion Detection Based on 10-Hydroxybenzo[h]quinoline Backbone