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  Bi2Pt(hP9) by Low-Temperature Reduction of Bi13Pt3I7: Reinvestigation of the Crystal Structure and Chemical Bonding Analysis

Kaiser, M., Baranov, A. I., & Ruck, M. (2014). Bi2Pt(hP9) by Low-Temperature Reduction of Bi13Pt3I7: Reinvestigation of the Crystal Structure and Chemical Bonding Analysis. Zeitschrift für anorganische und allgemeine Chemie, 640(14), 2742-2746. doi:10.1002/zaac.201400331.

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 Urheber:
Kaiser, Martin1, Autor
Baranov, Alexey I.2, Autor           
Ruck, M.3, Autor           
Affiliations:
1External Organizations, ou_persistent22              
2Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
3Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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 Zusammenfassung: Bi2Pt(hP9) or -Bi2Pt is a high-temperature modification, which is metastable below 420 degrees C. We obtained Bi2Pt(hP9) by reducing the layered bismuth subiodide Bi13Pt3I7 with a high excess of n-butyllithium at 70 degrees C. The crystals endure the heterogeneous reaction and the enormous mass loss. X-ray diffraction on a small single-crystal revealed that Bi2Pt(hP9) crystallizes in the acentric trigonal space group P31m (no. 157) with a = 657.30(7) pm and c = 616.65(7) pm. Although structure and stacking of the layers of edge-sharing [PtBi6/3] octahedra resemble the 1H-polytype of CdI2, Pt-Pt bonding interactions cause distortions that introduce polarity to the structure. Quantum chemical calculations followed by real-space bonding analysis reveal polar covalent bonding between bismuth and platinum atoms that is not limited to nearest neighbor atoms but is essentially delocalized. The Pt-Pt bond strength in Bi2Pt(hP9) is not much weaker than in the element.

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Sprache(n): eng - English
 Datum: 2014-09-242014-09-30
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000344792300015
DOI: 10.1002/zaac.201400331
 Art des Abschluß: -

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Titel: Zeitschrift für anorganische und allgemeine Chemie
  Andere : Journal of Inorganic and General Chemistry
  Andere : J. Inorg. Gen Chem.
  Kurztitel : Z. Anorg. Allg. Chem.
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 640 (14) Artikelnummer: - Start- / Endseite: 2742 - 2746 Identifikator: ISSN: 0044-2313
CoNE: https://pure.mpg.de/cone/journals/resource/954925453895