Work

Highly soluble cyclic dibenzophenazine heterodimer enabled by a tetra-functionalized building block

Year: 2025

Type: article

Abstract: A cyclic heterodimer of dibenzo[a,j]phenazine (DBPHZ) has been synthesized using a novel tetra-functionalized DBPHZ building block bearing bulky siloxy and dibromo substituents. Siloxy groups markedly enhanced the solubility of both the resulting intermediates and the macrocycle, enabling facile purification and systematic photophysical studies. The heterodimer exhibits locally excited fluorescence with minimal solvent dependence in solutions and pronounced aggregation-induced red-shifted emission in the films. This study demonstrates a molecular design strategy to enhance solubility and processability of nitrogen-embedded π-conjugated macrocycles.

Source: Chemistry Letters

DOI: 10.1093/chemle/upaf216

Authors: Naohiro Namba, Fumiya Ogura, Marc K Etherington, Satoshi Minakata, Youhei Takeda

Institutions: The University of Osaka, Northumbria University

Language: English

Topic: Luminescence and Fluorescent Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $1,003

Funders: Royal Society, TEPCO Memorial Foundation, Japan Society for the Promotion of Science, Japan Science and Technology Agency