Structure of a mixed-valence iron fluoride, Fe2F5·2H2O

William Hall, Stephen Kim, Jon A Zubieta, Erick G. Walton, David B. Brown

Research output: Contribution to journalArticle

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Abstract

The mixed-valence iron compound, Fe2F5·2H2O, crystallizes in the orthorhombic system, space group Imma. The unit cell has dimensions a = 7.489 (7), b = 10.897 (8), and c = 6.671 (6) Å and contains four formula weights. The calculated and experimental densities are 2.96 and 2.94 g/cm3, respectively, at 20 ± 1°C. Measurements of diffracted intensities employed θ-2θ scans with filtered Mo Kα radiation on a Picker diffractometer. A total of 250 reflections in the range 2 ≤ 2θ < 50° were retained as observed. The structure was determined using the heavy-atom method and least-squares refinement. The final conventional discrepancy factor was 0.053. The nonmolecular solid possesses a three-dimensional network structure with distinct Fe(II) and Fe(III) coordination sites. The average Fe(II)-F and Fe(III)-F bond lengths are 2.060 (6) and 1.941 (6) Å, respectively. The aquo groups are coordinated to the iron(II) with Fe-O bond length of 2.13 (1) Å.

Original languageEnglish (US)
Pages (from-to)1884-1887
Number of pages4
JournalInorganic Chemistry
Volume16
Issue number8
StatePublished - 1977
Externally publishedYes

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Bond length
Fluorides
fluorides
Iron
Iron Compounds
iron compounds
valence
iron
Diffractometers
diffractometers
Radiation
Atoms
radiation
cells
atoms

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Hall, W., Kim, S., Zubieta, J. A., Walton, E. G., & Brown, D. B. (1977). Structure of a mixed-valence iron fluoride, Fe2F5·2H2O. Inorganic Chemistry, 16(8), 1884-1887.

Structure of a mixed-valence iron fluoride, Fe2F5·2H2O. / Hall, William; Kim, Stephen; Zubieta, Jon A; Walton, Erick G.; Brown, David B.

In: Inorganic Chemistry, Vol. 16, No. 8, 1977, p. 1884-1887.

Research output: Contribution to journalArticle

Hall, W, Kim, S, Zubieta, JA, Walton, EG & Brown, DB 1977, 'Structure of a mixed-valence iron fluoride, Fe2F5·2H2O', Inorganic Chemistry, vol. 16, no. 8, pp. 1884-1887.
Hall W, Kim S, Zubieta JA, Walton EG, Brown DB. Structure of a mixed-valence iron fluoride, Fe2F5·2H2O. Inorganic Chemistry. 1977;16(8):1884-1887.
Hall, William ; Kim, Stephen ; Zubieta, Jon A ; Walton, Erick G. ; Brown, David B. / Structure of a mixed-valence iron fluoride, Fe2F5·2H2O. In: Inorganic Chemistry. 1977 ; Vol. 16, No. 8. pp. 1884-1887.
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AU - Brown, David B.

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N2 - The mixed-valence iron compound, Fe2F5·2H2O, crystallizes in the orthorhombic system, space group Imma. The unit cell has dimensions a = 7.489 (7), b = 10.897 (8), and c = 6.671 (6) Å and contains four formula weights. The calculated and experimental densities are 2.96 and 2.94 g/cm3, respectively, at 20 ± 1°C. Measurements of diffracted intensities employed θ-2θ scans with filtered Mo Kα radiation on a Picker diffractometer. A total of 250 reflections in the range 2 ≤ 2θ < 50° were retained as observed. The structure was determined using the heavy-atom method and least-squares refinement. The final conventional discrepancy factor was 0.053. The nonmolecular solid possesses a three-dimensional network structure with distinct Fe(II) and Fe(III) coordination sites. The average Fe(II)-F and Fe(III)-F bond lengths are 2.060 (6) and 1.941 (6) Å, respectively. The aquo groups are coordinated to the iron(II) with Fe-O bond length of 2.13 (1) Å.

AB - The mixed-valence iron compound, Fe2F5·2H2O, crystallizes in the orthorhombic system, space group Imma. The unit cell has dimensions a = 7.489 (7), b = 10.897 (8), and c = 6.671 (6) Å and contains four formula weights. The calculated and experimental densities are 2.96 and 2.94 g/cm3, respectively, at 20 ± 1°C. Measurements of diffracted intensities employed θ-2θ scans with filtered Mo Kα radiation on a Picker diffractometer. A total of 250 reflections in the range 2 ≤ 2θ < 50° were retained as observed. The structure was determined using the heavy-atom method and least-squares refinement. The final conventional discrepancy factor was 0.053. The nonmolecular solid possesses a three-dimensional network structure with distinct Fe(II) and Fe(III) coordination sites. The average Fe(II)-F and Fe(III)-F bond lengths are 2.060 (6) and 1.941 (6) Å, respectively. The aquo groups are coordinated to the iron(II) with Fe-O bond length of 2.13 (1) Å.

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