Rodalquilarite revisited: The hydrothermal synthesis and structural reinvestigation of H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl

Feger, C R; Kolis, J W; Gorny, K; Pennington, C

doi:10.1006/jssc.1998.8102

Title: Rodalquilarite revisited: The hydrothermal synthesis and structural reinvestigation of H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl

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Abstract

The known mineral rodalquilarite, H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl, was obtained as high quality single crystals via hydrothermal reactions. This material crystallizes in the triclinic space group P{bar 1}, with cell constants of a = 5.103(2) {angstrom}, b = 6.653(2) {angstrom}, c = 9.012(3) {angstrom}, {alpha} = 73.40(2){degree}, {beta} = 78.03(2), {gamma} = 76.76(2), V = 282.1(2) {angstrom}{sup 3} and was obtained from an NH{sub 4}Cl solution that was heated at 375 C for 4 days. A detailed structural characterization was performed (R = 0.039, R{sub w} = 0.050) and showed that this material is based on layers consisting of edge-sharing FeO{sub 6} octahedra which are interconnected by TeO{sub 3} pyramids which are completed by the presence of a terminal hydrogen atom. Additionally, a second set of TeO{sub 3} pyramids attached to the FeO{sub 6} octahedra are linked across the layers by a shared hydrogen atom. The layers are held together only through these O-H-O interactions and additional weak Te-Cl interactions. In this study, the authors compare this structure to a previous report of rodalquilarite and a reported triclinic form of Fe{sub 2}Te{sub 4}O{sub 11}, which may have been misidentified and is also the title compound. In addition, they havemore »« less

Authors:

Feger, C R; Kolis, J W ^[1]; Gorny, K; Pennington, C ^[2]

Clemson Univ., SC (United States). Dept. of Chemistry
Ohio state Univ., Columbus, OH (United States). Dept. of Physics

Publication Date:: Mon Mar 01 00:00:00 EST 1999

Sponsoring Org.:: National Science Foundation, Washington, DC (United States); USDOE, Washington, DC (United States)

OSTI Identifier:: 338451

DOE Contract Number:: FG02-90ER45427

Resource Type:: Journal Article

Journal Name:: Journal of Solid State Chemistry

Additional Journal Information:: Journal Volume: 143; Journal Issue: 2; Other Information: PBD: Mar 1999

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; CRYSTAL STRUCTURE; SYNTHESIS; HYDROGEN COMPOUNDS; IRON COMPOUNDS; TELLURIUM COMPOUNDS; OXYCHLORIDES; X-RAY DIFFRACTION; LATTICE PARAMETERS; VALENCE; EXPERIMENTAL DATA

Citation Formats


                    Feger, C R, Kolis, J W, Gorny, K, and Pennington, C. Rodalquilarite revisited: The hydrothermal synthesis and structural reinvestigation of H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl.  United States: N. p., 1999. 
        Web.  doi:10.1006/jssc.1998.8102.

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                    Feger, C R, Kolis, J W, Gorny, K, & Pennington, C. Rodalquilarite revisited: The hydrothermal synthesis and structural reinvestigation of H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl.  United States.  https://doi.org/10.1006/jssc.1998.8102

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                    Feger, C R, Kolis, J W, Gorny, K, and Pennington, C. 1999.  
        "Rodalquilarite revisited: The hydrothermal synthesis and structural reinvestigation of H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl".  United States.  https://doi.org/10.1006/jssc.1998.8102.

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@article{osti_338451,

  title        = {Rodalquilarite revisited: The hydrothermal synthesis and structural reinvestigation of H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl},

  author       = {Feger, C R and Kolis, J W and Gorny, K and Pennington, C},

  abstractNote = {The known mineral rodalquilarite, H{sub 3}Fe{sub 2}(TeO{sub 3}){sub 4}Cl, was obtained as high quality single crystals via hydrothermal reactions. This material crystallizes in the triclinic space group P{bar 1}, with cell constants of a = 5.103(2) {angstrom}, b = 6.653(2) {angstrom}, c = 9.012(3) {angstrom}, {alpha} = 73.40(2){degree}, {beta} = 78.03(2), {gamma} = 76.76(2), V = 282.1(2) {angstrom}{sup 3} and was obtained from an NH{sub 4}Cl solution that was heated at 375 C for 4 days. A detailed structural characterization was performed (R = 0.039, R{sub w} = 0.050) and showed that this material is based on layers consisting of edge-sharing FeO{sub 6} octahedra which are interconnected by TeO{sub 3} pyramids which are completed by the presence of a terminal hydrogen atom. Additionally, a second set of TeO{sub 3} pyramids attached to the FeO{sub 6} octahedra are linked across the layers by a shared hydrogen atom. The layers are held together only through these O-H-O interactions and additional weak Te-Cl interactions. In this study, the authors compare this structure to a previous report of rodalquilarite and a reported triclinic form of Fe{sub 2}Te{sub 4}O{sub 11}, which may have been misidentified and is also the title compound. In addition, they have obtained the band gap of this material by diffuse reflectance spectroscopy and find it to be a wide band gap (E{sub g} = 2.51 eV) material. The DC magnetic susceptibility was also obtained and showed that the title compound is antiferromagnetic with a T{sub N} of 29 K.},

  doi          = {10.1006/jssc.1998.8102},

  url          = {https://www.osti.gov/biblio/338451},
  journal      = {Journal of Solid State Chemistry},
number       = 2,

  volume       = 143,

  place        = {United States},

  year         = {Mon Mar 01 00:00:00 EST 1999},

  month        = {Mon Mar 01 00:00:00 EST 1999}

}

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