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  Salts of octabismuth(2+) polycations crystallized from Lewis-acidic ionic liquids

Knies, M., & Ruck, M. (2021). Salts of octabismuth(2+) polycations crystallized from Lewis-acidic ionic liquids. Zeitschrift für Naturforschung, B: A Journal of Chemical Sciences, 1-5. doi:10.1515/znb-2021-0042.

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 Creators:
Knies, Maximilian1, Author
Ruck, Michael2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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Free keywords: bismuth polycations, crystal structure, ionic liquids
 Abstract: The reaction of Bi and BiCl3 with RbCl or CsCl in the Lewis-acidic ionic liquid (IL) [BMIm]Cl·4AlCl3 at T = 200 °C yielded air-sensitive, shiny black crystals. X-ray diffraction on single crystals revealed the hexagonal structures of two new salts (Bi8)M[AlCl4]3 (M = Rb, Cs), which are isostructural to the high-temperature form of (Bi8)Tl[AlCl4]3. The known (Bi8)2+ polycation is a square antiprism and can be interpreted as an arachno cluster following modified Wade rules. The crystal structure is a complex variant of the hexagonal perovskite structure type ABX3 with A = (Bi8)2+, B = M+ and X = [AlCl4]-. Chiral strands ∞{M[AlCl4]3}2- (M = Rb, Cs) run along [001]. The (Bi8)2+ polycations are only weakly coordinated inside a cage of 24 chloride ions and show dynamic rotational disorder at room temperature. Upon slow cooling to 170 K, the reorientation of the clusters was frozen, yet no long-range order was established. © 2021 Walter de Gruyter GmbH, Berlin/Boston 2021.

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Language(s): eng - English
 Dates: 2021-05-282021-05-28
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1515/znb-2021-0042
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Title: Zeitschrift für Naturforschung, B: A Journal of Chemical Sciences
  Abbreviation : Z. Naturforsch., B: J. Chem. Sci.
Source Genre: Journal
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Publ. Info: Berlin : Walter de Gruyter GmbH
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1 - 5 Identifier: ISSN: 0932-0776
CoNE: https://pure.mpg.de/cone/journals/resource/954927655916