A1 Journal article (refereed)
Hexagonal Microparticles from Hierarchical Self-Organization of Chiral Trigonal Pd3L6 Macrotetracycles (2021)

Jurček, Ondřej, Nonappa, Kalenius, Elina, Jurček, Pia, Linnanto, Juha M., Puttreddy, Rakesh, Valkenier, Hennie, Houbenov, Nikolay, Babiak, Michal, Peterek, Miroslav, Davis, Anthony P., Marek, Radek, Rissanen, Kari. (2021). Hexagonal Microparticles from Hierarchical Self-Organization of Chiral Trigonal Pd3L6 Macrotetracycles. Cell Reports Physical Science, 2(1), Article 100303. https://doi.org/10.1016/j.xcrp.2020.100303

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Publication details

All authors or editors: Jurček, Ondřej; Nonappa; Kalenius, Elina; Jurček, Pia; Linnanto, Juha M.; Puttreddy, Rakesh; Valkenier, Hennie; Houbenov, Nikolay; Babiak, Michal; Peterek, Miroslav; et al.

Journal or series: Cell Reports Physical Science

ISSN: 2666-3864

eISSN: 2666-3864

Publication year: 2021

Volume: 2

Issue number: 1

Article number: 100303

Publisher: Elsevier

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1016/j.xcrp.2020.100303

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/73992

Abstract

Construction of structurally complex architectures using inherently chiral, asymmetric, or multi-heterotopic ligands is a major challenge in metallosupramolecular chemistry. Moreover, the hierarchical self-organization of such complexes is unique. Here, we introduce a water-soluble, facially amphiphilic, amphoteric, chiral, asymmetric, and hetero-tritopic ligand derived from natural bile acid, ursodeoxycholic acid. We show that via the supramolecular transmetalation reaction, using nitrates of Cu(II) or Fe(III), and subsequently Pd(II), a superchiral Pd3L6 complex can be obtained. Even though several possible constitutional isomers of Pd3L6 could be formed, because of the ligand asymmetry and relative flexibility of carbamate-pyridyl moieties attached to the steroid scaffold, only a single product with C3 rotational symmetry was obtained. Finally, we demonstrate that these amphiphilic complexes can self-organize into hexagonal microparticles in aqueous media. This finding may lead to the development of novel self-assembled metal-organic functional materials made of natural, abundant, and relatively inexpensive steroidal compounds.

Keywords: supramolecular chemistry; coordination complexes; microstructures

Free keywords: supramolecular chemistry; bile acid; palladium; heterotopic ligand; transmetalation; self-assembly; chirality; surfactant; self-organization; particle

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Ministry reporting: Yes

VIRTA submission year: 2021

JUFO rating: 1