A1 Journal article (refereed)
Subcomponent self‐assembly of a cyclic tetranuclear Fe(II) helicate in a highly diastereoselective self‐sorting manner (2019)


Anhäuser, J., Puttreddy, R., Glanz, L., Schneider, A., Engeser, M., Rissanen, K., & Lützen, A. (2019). Subcomponent self‐assembly of a cyclic tetranuclear Fe(II) helicate in a highly diastereoselective self‐sorting manner. Chemistry : A European Journal, 25(33), 12294-12297. https://doi.org/10.1002/chem.201903164


JYU authors or editors


Publication details

All authors or editors: Anhäuser, Jana; Puttreddy, Rakesh; Glanz, Lukas; Schneider, Andreas; Engeser, Marianne; Rissanen, Kari; Lützen, Arne

Journal or series: Chemistry : A European Journal

ISSN: 0947-6539

eISSN: 1521-3765

Publication year: 2019

Volume: 25

Issue number: 33

Pages range: 12294-12297

Publisher: Wiley-VCH Verlag

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1002/chem.201903164

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/65614

Additional information: Dedicated to Professor Jean-Marie Lehn on the occasion of his 80th birthday.


Abstract

An enantiomerically pure diamine based on the 4,15‐difunctionalized [2.2]paracyclophane scaffold and 2‐formylpyridine self‐assemble into an optically pure cyclic metallosupramolecular Fe₄L₆ helicate upon mixing with iron(II) ions in a diastereoselective subcomponent self‐assembly process. The cyclic assembly results from steric strain that prevents the formation of a smaller linear dinuclear triple‐stranded helicate, and hence, leads to the larger strain‐free assembly that fulfils the maximum occupancy rule. Interestingly, use of the racemic diamine also leads to a racemic mixture of the homochiral cyclic helicates as the major product in a highly diastereoselective narcissistic chiral self‐sorting manner given the fact that the assembly contains ten stereogenic elements which can in principle give rise to 149 different diastereomers. The metallosupramolecular aggregates could be characterized by NMR, UV‐Vis and CD spectroscopy, mass spectrometry and X‐ray crystallography.


Keywords: supramolecular chemistry

Free keywords: [2.2]paracyclophane; chiral self-sorting; metallo-supramolecular chemistry; cyclic helicates; subcomponent self-assembly


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Ministry reporting: Yes

Reporting Year: 2019

JUFO rating: 2


Last updated on 2021-09-08 at 14:29