Ionothermal Synthesis, Crystal Structure, and Magnetic Study of Co2PO4OH Isostructural with Caminite Wang, Guangmei Mudring, Anja Valldor, Martin Spielberg, Eike Mudring, Anja
dc.contributor.department Materials Science and Engineering 2018-02-17T02:10:00.000 2020-06-30T06:07:19Z 2020-06-30T06:07:19Z Wed Jan 01 00:00:00 UTC 2014 2014-01-01
dc.description.abstract <p>A new framework cobalt(II) hydroxyl phosphate, Co<sub>2</sub>PO<sub>4</sub>OH, was prepared by ionothermal synthesis using 1-butyl-4-methyl-pyridinium hexafluorophosphate as the ionic liquid. As the formation of Co<sub>2</sub>PO<sub>4</sub>F competes in the synthesis, the synthesis conditions have to be judiciously chosen to obtain well-crystallized, single phase Co<sub>2</sub>PO<sub>4</sub>OH. Single-crystal X-ray diffraction analyses reveal Co<sub>2</sub>PO<sub>4</sub>OH crystallizes with space group <em>I</em>4<sub>1</sub>/<em>amd</em> (<em>a</em> = <em>b</em> = 5.2713(7) Å, <em>c</em> = 12.907(3) Å, <em>V</em> = 358.63(10) Å<sup>3</sup>, and <em>Z</em> = 4). Astonishingly, it does not crystallize isotypically with Co<sub>2</sub>PO<sub>4</sub>F but rather isotypically with the hydroxyl minerals caminite Mg<sub>1.33</sub>[SO<sub>4</sub>(OH)<sub>0.66</sub>(H<sub>2</sub>O)<sub>0.33</sub>] and lipscombite Fe<sub>2–<em>y</em></sub>PO<sub>4</sub>(OH) (0 ≤ <em>y</em> ≤ 2/3). Phosphate tetrahedra groups interconnect four rod-packed face-sharing <sub>∞</sub><sup>1</sup>{CoO<sub>6/2</sub>} octahedra chains to form a three-dimensional framework structure. The compound Co<sub>2</sub>PO<sub>4</sub>OH was further characterized by powder X-ray diffraction, Fourier transform–infrared, and ultraviolet–visible spectroscopy, confirming the discussed structure. The magnetic measurement reveals that Co<sub>2</sub>PO<sub>4</sub>OH undergoes a magnetic transition and presents at low temperatures a canted antiferromagnetic spin order in the ground state.</p>
dc.description.comments <p>Reprinted with permission from Inorg. Chem., 2014, 53 (6), pp 3072–3077. Copyright 2014 American Chemical Society.</p>
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dc.identifier archive/
dc.identifier.articleid 1207
dc.identifier.contextkey 7670881
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/203
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 22:22:53 UTC 2022
dc.source.bitstream archive/|||Fri Jan 14 22:22:55 UTC 2022
dc.source.uri 10.1021/ic4029904
dc.subject.disciplines Ceramic Materials
dc.subject.disciplines Complex Fluids
dc.subject.disciplines Other Chemical Engineering
dc.subject.disciplines Other Materials Science and Engineering
dc.title Ionothermal Synthesis, Crystal Structure, and Magnetic Study of Co2PO4OH Isostructural with Caminite
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 76d3f5af-f728-48c2-ab57-57393236675d
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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