Issue 47, 2020

General strategy for tuning the Stokes shifts of near infrared cyanine dyes

Abstract

We report a significant Stokes shift enhancement in near-infrared fluorescing cyanines as a result of C4′-substitution with cyclic or acyclic amines. Based on a combined experimental and density functional study, a simple strategy for optimizing the Stokes shift is proposed. By tuning the relative energies of cyanine-like and bis-dipolar conformers, differing in the rotational angle of the amine substituent, it is possible to develop molecules that undergo conformational change upon excitation, resulting in a predictable Stokes shift.

Graphical abstract: General strategy for tuning the Stokes shifts of near infrared cyanine dyes

Supplementary files

Article information

Article type
Paper
Submitted
30 Jul 2020
Accepted
25 Sep 2020
First published
05 Oct 2020

J. Mater. Chem. C, 2020,8, 16769-16773

General strategy for tuning the Stokes shifts of near infrared cyanine dyes

J. Zhang, M. Moemeni, C. Yang, F. Liang, W. Peng, B. G. Levine, R. R. Lunt and B. Borhan, J. Mater. Chem. C, 2020, 8, 16769 DOI: 10.1039/D0TC03615C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements