A1 Journal article (refereed)
Heads or Tails? Sandwich-Type Metallocomplexes of Hexakis(2,3-di-O-methyl)-α-cyclodextrin (2020)

Jurček, O., Puttreddy, R., Topić, F., Jurček, P., Zarabadi-Poor, P., Schröder, H. V., Marek, R., & Rissanen, K. (2020). Heads or Tails? Sandwich-Type Metallocomplexes of Hexakis(2,3-di-O-methyl)-α-cyclodextrin. Crystal Growth and Design, 20(6), 4193-4199. https://doi.org/10.1021/acs.cgd.0c00532

JYU authors or editors

Publication details

All authors or editors: Jurček, Ondřej; Puttreddy, Rakesh; Topić, Filip; Jurček, Pia; Zarabadi-Poor, Pezhman; Schröder, Hendrik V.; Marek, Radek; Rissanen, Kari

Journal or series: Crystal Growth and Design

ISSN: 1528-7483

eISSN: 1528-7505

Publication year: 2020

Volume: 20

Issue number: 6

Pages range: 4193-4199

Publisher: American Chemical Society

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1021/acs.cgd.0c00532

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68804

Abstract

Native and synthetically modified cyclodextrins (CDs) are useful building blocks in construction of large coordination complexes and porous materials with various applications. Sandwich-type complexes (STCs) are one of the important groups in this area. Usually, coordination of secondary hydroxyls or the “head” portal of native CD molecules to a notional multinuclear ring of metal cations leads to formation of head-to-head STCs. Our study introduces a new CD-ligand, hexakis(2,3-di-O-methyl)-α-cyclodextrin, which enables formation of intriguing head-to-head, but also novel tail-to-tail STCs. Homometallic silver-based head-to-head STCs, AgPF6-STC and AgClO4-STC, were obtained by coordination of ligand methoxy groups to six Ag+, while bulky counter-anions are located on the outside but also filling the inner space of infinite linear channels formed. In contrast, unique homometallic tail-to-tail RbF-STC was prepared by complexation of primary hydroxyls, “tails”, to twelve Rb+ tightly interconnected by twelve F- creating complex structure with accessible pores for potential gas adsorptions.

Free keywords: cyclodextrin; sandwich-type complex; X-ray crystallography; metal-organic material; rubidium; silver

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Ministry reporting: Yes

VIRTA submission year: 2020

JUFO rating: 2