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Updated: Jan 17, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Unveiling the unusual halochromic response and phase behavior of a dihydropyrrolo[3,2-b]pyrrole electrochrome
Vanessa Phan1, Perry Skiouris1, Jonathan Lawton2
1Center for Optoelectronic Materials and Devices, School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA. graham.collier@usm.edu.
Abstract:
A carbazole-functionalized pyrrolo[3,2-b]pyrrole (Cbz-DHPP) chromophore was synthesized, exhibiting high-contrast electrochromism, strong blue fluorescence, halochromism, and polymorphism. These findings advance understanding of DHPP structure-property relationships, while introducing new electrochromic colors and the first examples of halochromism and mesomorphic properties in DHPP-based materials, highlighting their potential in optoelectronic applications.
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