Work

Giant Fully Fused Tetrapodal Rylenimides: Design, Synthesis and Optoelectrochemical Characterization via Alkyl Chain and Core Engineering Strategies

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide In this work, we report the synthesis and comprehensive characterization of a new series of fully fused three-dimensional rylenimide-based derivatives featuring extended π-conjugation through core-fusion strategies and tailored side-chain engineering at the imide nitrogen, resulting in molecular architectures with up to 19 fused rings. The effects of π-extension and alkyl/aryl imide substituents on the optical and electrochemical behavior were systematically studied using UV–vis spectroscopy, cyclic voltammetry, and density functional theory calculations. The results demonstrate that combining π-extension with bulky solubilizing groups effectively suppresses undesired π–π interactions, enhances electronic delocalization, and improves device-relevant properties. This molecular design strategy offers a promising platform for the development of next-generation functional n- type organic semiconductors.

Source: Organic Letters

DOI: 10.1021/acs.orglett.5c02655

Authors: Matías J. Alonso-Navarro, Fátima Suárez-Blas, José Ignacio Martínez, M. Mar Ramos, José L. Segura

Institutions: Universidad Complutense de Madrid, Universidad Rey Juan Carlos, Consejo Superior de Investigaciones Científicas, Instituto de Ciencia de Materiales de Madrid

Language: English

Topic: Organic Electronics and Photovoltaics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500