Iminopyrrole-Based Self-Assembly: A Route to Intrinsically Flexible Molecular Links and Knots.

Authors :: Sarwa A
Białońska A
Sobieraj M
Martínez JP
Trzaskowski B
Szyszko B
Source :: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Jan 22; Vol. 63 (4), pp. e202316489. Date of Electronic Publication: 2023 Dec 20.
Publication Year :: 2024
Abstract: The use of 2,5-diformylpyrrole in self-assembly reactions with diamines and Zn(II)/Cd(II) salts allowed the preparation of [2]catenane, trefoil knot, and Borromean rings. The intrinsically dynamic nature of the diiminopyrrole motif rendered all of the formed assemblies intramolecularly flexible. The presence of diiminopyrrole revealed new coordination motifs and influenced the host-guest chemistry of the systems, as illustrated by hexafluorophosphate encapsulation by Borromean rings.<br /> (© 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.)

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