Synthesis, Crystal Structure and Magnetic Properties of the New One-Dimensional Manganate CsMnO.
CsMnO, a new member of the small family of ternary manganese (II/III) mixed-valent compounds, has been synthesized via the azide/nitrate route and studied using powder and single crystal X-ray diffraction, magnetic susceptibility measurements and density functional theory (DFT). Its crystal structur...
| Published in: | Journal of the American Chemical Society Vol. 134; no. 28; pp. 11734 - 11740 |
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| Main Authors: | , , , , |
| Format: | Article |
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American Chemical Society
7/18/2012
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=78130144&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 78130144 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 7/18/2012 vid: 134 iid: 28 pid: 997 pub: American Chemical Society artinfo: ui: 78130144 10.1021/ja303889g ppf: 11734 ppct: 6 formats: tig: atl: Synthesis, Crystal Structure and Magnetic Properties of the New One-Dimensional Manganate CsMnO. aug: au: Nuss, Jurgen Señaris-Rodriguez, Maria A. Dasari, Prasad L. V. K. Stahl, Moritz Jansen, Martin affil: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany Dpto Química Fundamental, Facultad de Ciencias, Universidad de A Coruña, 15071 A Coruña, Spain Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States su: Manganese compounds Chemical synthesis Measurement of magnetic properties Density functionals Electronic structure Antiferromagnetism Ferromagnetism Crystallography sug: subj: Manganese compounds Chemical synthesis Measurement of magnetic properties Density functionals Electronic structure Antiferromagnetism Ferromagnetism Crystallography ab: CsMnO, a new member of the small family of ternary manganese (II/III) mixed-valent compounds, has been synthesized via the azide/nitrate route and studied using powder and single crystal X-ray diffraction, magnetic susceptibility measurements and density functional theory (DFT). Its crystal structure (P2/c, Z = 8, a = 1276.33(1) pm, b = 1082.31(2) pm, c = 1280.29(2) pm, /3 = 118.390(2)°) is based on one-dimensional MnO chains built up from edge-sharing MnO tetrahedra. The title compound is the first example of an intrinsically doped transition metalate of the series AMnO, (A = alkali metal) where a complete 1:1 charge ordering of Mn and Mn is observed along the chains -Mn-Mn). From the magnetic point of view it basically consists of ferrimagnetic MnO chains, where the Mn and Mn ions are strongly antiferromagnetically coupled up to high temperatures. Very interestingly, their long-range three-dimensional ordering below the Néel temperature (T) ~12 K give rise to conspicuous field dependent magnetic ordering phenomena, for which we propose a consistent picture based on the change from antiferromagnetic to ferromagnetic coupling between the chains. Electronic structure calculations confirm the antiferromagnetic ordering as the ground state for CsMnO and ferrimagnetic ordering as its nearly degenerate state. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2012 holdings: @attributes: islocal: N |
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