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Using high pressure to prepare polymorphs of the Ba2Co1-xZnxS3(0 ≤ x ≤ 1.0) compounds

Mezzadri, Francesco; Gilioli, Edmondo; Calestani, Gianluca; Migliori, Andrea; Harrison, Mark R.; Headspith, David A.; Francesconi, M. Grazia


Francesco Mezzadri

Edmondo Gilioli

Gianluca Calestani

Andrea Migliori

Mark R. Harrison

David A. Headspith


In this work, high pressure was used as a tool to induce structural transition and prepare metastable polymorphs of ternary sulfides. Structural transformations under high pressure of compounds belonging to the Ba 2 Co 1-x Zn x S 3 (0 ≤ x ≤ 1.0) series were studied using X-ray diffraction and electron microscopy. All members of the Ba 2 Co 1-x Zn x S 3 series show the Ba 2 CoS 3 -type one-dimensional structure, but, after heating under pressure, the Ba 2 CoS 3 compound (x = 0) separates into BaS and the two-dimensional BaCoS 2-δ (δ ≈ 0), while Ba 2 Co 1-x Zn x S 3 compounds with x ≥ 0.25 maintain their one-dimensional features but rearrange into polymorphs showing the Ba 2 MnS 3 -type structure. All structural transformations can be linked to shortening in interchain metal-metal distances caused by the high pressure, and the role of the zinc in preventing loss of one-dimensionality is discussed. © 2011 American Chemical Society.

Journal Article Type Article
Publication Date Jan 2, 2012
Journal Inorganic Chemistry
Print ISSN 0020-1669
Electronic ISSN 1520-510X
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 51
Issue 1
Pages 397-404
APA6 Citation Mezzadri, F., Gilioli, E., Calestani, G., Migliori, A., Harrison, M. R., Headspith, D. A., & Francesconi, M. G. (2012). Using high pressure to prepare polymorphs of the Ba2Co1-xZnxS3(0 ≤ x ≤ 1.0) compounds. Inorganic chemistry, 51(1), 397-404. doi:10.1021/ic201773e
Keywords Physical and Theoretical Chemistry; Inorganic Chemistry