RT Journal Article T1 Supramolecular polymerization and bulk properties relationship in ester-functionalized N-annulated perylenediimides A1 López Gandul, Lucia A1 Lavarda, Giulia A1 van den Bersselaar, Bart W. L. A1 Vantomme, Ghislaine A1 Meijer, E. W. A1 Sánchez Martín, Luis AB The synthesis of a series of N-annulated perylenediimides (NPDIs) 1–4 with an ester group and an alkyl spacer of different length in the peripheral chains was carried out, and the influence of the side chain architecture on the self-assembly, both in solution and in the solid state, was investigated. Solution studies evidenced that the carbonyl group plays a key role in the supramolecular organization of these derivatives, changing from an H-type isodesmic polymerization (4) to a J-type cooperative process as the spacer length decreases (1–3). On the other hand, bulk assays revealed an odd-even effect that correlates with the length of the alkyl spacer. Whereas the odd-spaced derivatives (2 and 4) organize in a disordered columnar hexagonal fashion, the even-spaced ones (1 and 3) show the formation of multiple crystalline (and liquid crystalline) structures. The results presented herein highlight the importance of side chain functionalization in the design of building blocks for in-solution and bulk purposes. PB Royal Society of Chemistry YR 2024 FD 2024-08 LK https://hdl.handle.net/20.500.14352/112620 UL https://hdl.handle.net/20.500.14352/112620 LA eng NO L. López-Gandul, G. Lavarda, B. W. L. Van Den Bersselaar, G. Vantomme, E. W. Meijer and L. Sánchez, Supramolecular polymerization and bulk properties relationship in ester-functionalized N -annulated perylenediimides, Chem. Sci., 2024, 15, 14037–14043. NO Agencia Estatal de Investigación (España) NO Consejo Europeo de Investigación NO European Commission DS Docta Complutense RD 10 abr 2025