From the journal:

Chemical Communications

Aggregation-induced structural clamping drives NIR photoluminescence switching in Au2Cu6 nanoclusters by suppressing El-Sayed-allowed intersystem crossing

Hayato Yamauchi,a   Daichi Arimaa  and  Masaaki Mitsui ORCID logo *a  

* Corresponding authors

a Department of Chemistry, College of Science, Rikkyo University, 3-34-1, Nishiikebukuro, Toshima-ku, Tokyo, Japan
E-mail: mitsui@rikkyo.ac.jp

Abstract

Aggregation of Au2Cu6 nanoclusters induces a drastic near infrared phosphorescence-to-fluorescence switch by imposing structural clamping that suppresses the El-Sayed-allowed intersystem crossing through hindered the geometric relaxation.

Graphical abstract: Aggregation-induced structural clamping drives NIR photoluminescence switching in Au2Cu6 nanoclusters by suppressing El-Sayed-allowed intersystem crossing

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Article information

DOI
https://doi.org/10.1039/D6CC01220E
Article type
Communication
Submitted
27 Feb 2026
Accepted
13 Apr 2026
First published
13 Apr 2026

Chem. Commun., 2026, Advance Article

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Aggregation-induced structural clamping drives NIR photoluminescence switching in Au2Cu6 nanoclusters by suppressing El-Sayed-allowed intersystem crossing

H. Yamauchi, D. Arima and M. Mitsui, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D6CC01220E

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