Dumoulın F. (Yürütücü), İşci Ü., Şahin Z.
TÜBİTAK Uluslararası İkili İşbirliği Projesi, 2025 - 2027
The preparation of frameworks incorporating photomaterials is driving increasing interest as they can mimic and induce biomimetic events such as photoinduced energy and/or electron transfer processes, and represent an innovative strategy for the development of systems for the collection and conversion of light energy. Phthalocyanines have a quite unique place amongst dyes, thanks to their stability, structural versatility and opportunities to modulate their photophysical properties. However, and unlike porphyrins, phthalocyanines haven’t been included in many frameworks, should it be metal-organic frameworks (MOFs), covalent organic frameworks (COFs) or supramolecular frameworks. This project will explore for the first time 2D framework uniquely based on phthalocyanines for applications in artificial photosynthesis.
Two types of phthalocyanines will be prepared by the Turkish team, who has a renowned expertise in phthalocyanine chemistry: HOST-M1Pc with resorcinarene cavitands substituents, and GUEST-M2Pcs with moieties able to establish host-guest interactions with the resorcinarene cavitands. Together, they will form highly stable and original phthalocyanine-based host-guest supramolecular frameworks. Variations of the substitution pattern of the GUEST-M2Pcs (position of the substituent and grafting atom/function) will modulate their optical properties. Moreover, the different metalation of host and guest phthalocyanines will allow to drive and tune energy and electron transfer processes between hosts and guests. Next, the Italian team, in line with their internationally recognized expertise in the field, will perform a complete study on the photophysical and electrochemical properties of the novel frameworks, to assess the different photoinduced energy and/or electron transfers that are operative within these arrays.
The scientific objectives are achievable only in such a context of combination and complementarity of the respective expertise of each team. The project will have a strong impact in the scientific community and will lead to important knowhow for applications in the field of solar energy collection and storage via photosynthesis-mimicking architectures. Students recruited will also benefit from this unique international experience.