Pentagonal Bismuth Antiprisms with Endohedral Palladium or Platinum Atoms by Low-Temperature Syntheses
Groh MF, Wolff A, Wahl B, Rasche B, Gebauer P, Ruck M (2017)
Publication Type: Journal article
Publication year: 2017
Journal
Book Volume: 643
Pages Range: 69-80
Journal Issue: 1
DOI: 10.1002/zaac.201600354
Abstract
We present the syntheses, crystal structures, and properties of five metal-rich salts containing the Bi104+pentagonal antiprism with an endohedral palladium or, for the first time, platinum atom. Tetragonal [Pt@Bi10](AlBr4)4[P42/n at 296(1) K; P4 at 150(2) K] was obtained by reacting platinum, bismuth, and bismuth tribromide in [BMIm]Br·4.1AlBr3at 140 °C (BMIm = 1-butyl-3-methylimidazolium). Monoclinic [Pt@Bi10](AlBr4)2(Al2Br7)2[P21/n] occurs as by-product. The two corresponding palladium compounds result from the dissolution of Bi16PdCl22in [BMIm]Br·4.1AlBr3. [Pd@Bi10](AlBr4)4[P42/n] adopts a disordered structure homeotypic to its platinum analog. [Pd@Bi10](AlBr4)2(Al2Br7)2[P21/n] is isostructural to [Pt@Bi10](AlBr4)2(Al2Br7)2. In all structures, the [M@Bi10]4+cations are well separated by the bromido-aluminate anions with inter-cluster Bi···Bi distances longer than 520 pm. This is not the case in [Pd@Bi10][Bi2Sn6Cl22], which crystallized from a tin-containing melt of the metals and BiCl3. In its monoclinic structure [P21/c], the cluster cations are arranged in chains along [001] with an inter-cluster distance of only 357 pm. Despite further structural evidence, DFT-based quantum chemical analysis gave no hint on inter-cluster bonding. According to the calculated band structure as well as resistivity and magnetic susceptibility measurements, the black compound is a diamagnetic semiconductor.
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How to cite
APA:
Groh, M.F., Wolff, A., Wahl, B., Rasche, B., Gebauer, P., & Ruck, M. (2017). Pentagonal Bismuth Antiprisms with Endohedral Palladium or Platinum Atoms by Low-Temperature Syntheses. Zeitschrift für Anorganische und Allgemeine Chemie, 643(1), 69-80. https://doi.org/10.1002/zaac.201600354
MLA:
Groh, Matthias F., et al. "Pentagonal Bismuth Antiprisms with Endohedral Palladium or Platinum Atoms by Low-Temperature Syntheses." Zeitschrift für Anorganische und Allgemeine Chemie 643.1 (2017): 69-80.
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