Crystal structures of the tetrachloridoaluminates(III) of rubidium(I), 
silver(I), and lead(II)

Knies, Maximilian; Lê Anh, Mai; Keßler, Ulrich; Ruck, Michael

doi:10.1515/znb-2019-0162

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Crystal structures of the tetrachloridoaluminates(III) of rubidium(I), silver(I), and lead(II)

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Ruck, Michael
Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Knies, M., Lê Anh, M., Keßler, U., & Ruck, M. (2020). Crystal structures of the tetrachloridoaluminates(III) of rubidium(I), silver(I), and lead(II). Zeitschrift für Naturforschung, B: A Journal of Chemical Sciences, 75(1-2), 117-123. doi:10.1515/znb-2019-0162.

Cite as: https://hdl.handle.net/21.11116/0000-0005-5F2C-1

Abstract

The reactions of the binary metal chlorides AgCl, RbCl and PbCl2 at T = 180°C in the ionic liquid [BMIm]Cl · 4AlCl3 (BMIm = 1-n-butyl-3-methylimidazolium) yielded air-sensitive, colorless, high-quality crystals of their tetrachloridoaluminate(III) salts. Thereby, the obstructions that hinder proper crystallization of these compounds from pristine AlCl3 melts were circumvented. X-ray diffraction on single-crystals revealed a monoclinic structure (space group P21/c) for Ag[AlCl4], which unexpectedly has a closer relation to Cu[AlCl4]2 than to Cu[AlCl4]. Rb[AlCl4] crystallizes in the baryte structure type (orthorhombic, Pnma), and Pb[AlCl4]2 is isotypic to α-Sr[GaCl4]2 (orthorhombic, Pbca). © 2019 Walter de Gruyter GmbH, Berlin/Boston 2019.