RT Journal Article
T1 Electronically and geometrically complementary perylene diimides for kinetically controlled supramolecular copolymers
A1 Schwalb, Alfonso J.
A1 García Melo, Fátima
A1 Sánchez Martín, Luis
AB The synthesis of 3,4,9,10-benzo[d,e]isoquinolino[1,8-g,h]quinoline-tetracarboxylic diimide (BQQDI) 1 endowed with peripheral trialkoxybenzamide fragments is reported and its self-assembling features investigated. The peripheral benzamide moieties generate metastable monomeric species that afford a kinetically controlled supramolecular polymerization. The electron-withdrawing character of 1 in comparison with previously reported PDIs 2, together with the similar geometry, makes this dye an optimal candidate to perform seeded supramolecular copolymerization yielding four different supramolecular block copolymers. Whilst heteropolymers poly-1-co-2a, poly-2a-co-1 and poly-1-co-2b present an H-type arrangement of the monomeric units, heteropolymer poly-2b-co-1, prepared by seeding the chiral, metastable monomers of 2b with achiral seeds of 1, produces chiral, J-type aggregates. Interestingly, the monosignated CD signal of pristine poly-2b changes to a bisignated CD signal most probably due to the formation of columnar domains around the seeds of 1 which implies the blocky nature of the supramolecular copolymers formed.
PB Royal Society of Chemistry
YR 2024
FD 2024
LK https://hdl.handle.net/20.500.14352/109131
UL https://hdl.handle.net/20.500.14352/109131
LA eng
NO A. J. Schwalb, F. García and L. Sánchez, Electronically and geometrically complementary perylenediimides for kinetically controlled supramolecular copolymers, Chem. Sci., 2024, 15, 8137–8144.
NO 2024 Acuerdos transformativos CRUE
NO Comunidad de Madrid (España)
NO Ministerio de Ciencia, Innovación y Universidades (España)
DS Docta Complutense
RD 17 abr 2025