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Volume 64 
Part 1 
Page i3  
January 2008  

Received 29 November 2007
Accepted 4 December 2007
Online 6 December 2007


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Key indicators
Single-crystal X-ray study
T = 293 K
Mean [sigma](Te-O) = 0.004 Å
R = 0.027
wR = 0.061
Data-to-parameter ratio = 17.6
Details

NaFe(TeO3)2

Matthias Weila* and Berthold Stögera

aInstitute for Chemical Technologies and Analytics, Division of Structural Chemistry, Vienna University of Technology, Getreidemarkt 9/164-SC, A-1060 Vienna, Austria
Correspondence e-mail: mweil@mail.zserv.tuwien.ac.at

The hydrothermally prepared title compound, sodium iron(III) bis[trioxotellurate(IV)], is isotypic with its GaIII analogue and consists of corrugated layers with an overall composition of [FeTe2O6]- together with Na+ cations. The layers extend parallel to (001) and are made up of [Fe2O10] edge-shared octahedral dimers and TeO3 trigonal pyramids sharing vertices. The Na+ cations are located in the cavities of this arrangement and link adjacent [FeTe2O6]- layers via distorted [NaO8] polyhedra.

Related literature

For the isotypic structure NaGa(TeO3)2, see: Miletich & Pertlik (1998[Miletich, R. & Pertlik, F. (1998). J. Alloys Compds, 268, 107-111.]). For related structures, see: Weil (2005[Weil, M. (2005). Acta Cryst. C61, i103-i105.], 2007[Weil, M. (2007). Z. Anorg. Allg. Chem. 633, 1217-1222.]); Weil & Stöger (2007[Weil, M. & Stöger, B. (2007). Acta Cryst. E63, i202.]). For a review on the crystal chemistry of tellurate(IV) oxocompounds, see: Dolgikh (1991[Dolgikh, V. A. (1991). Russ. J. Inorg. Chem. (Eng. Transl.), 36, 1117-1129.]).

Experimental

Crystal data

  • NaFe(TeO3)2

  • Mr = 430.04

  • Orthorhombic, P c a b

  • a = 7.8530 (15) Å

  • b = 10.448 (2) Å

  • c = 13.438 (3) Å

  • V = 1102.5 (4) Å3

  • Z = 8

  • Mo K[alpha] radiation

  • [mu] = 13.15 mm-1

  • T = 293 (2) K

  • 0.08 × 0.02 × 0.01 mm
Data collection

  • Bruker SMART APEX CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 2002[Bruker (2002). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.405, Tmax = 0.858

  • 11127 measured reflections

  • 1598 independent reflections

  • 1329 reflections with I > 2[sigma](I)

  • Rint = 0.053
Refinement

  • R[F2 > 2[sigma](F2)] = 0.027

  • wR(F2) = 0.061

  • S = 1.03

  • 1598 reflections

  • 91 parameters

  • [Delta][rho]max = 1.77 e Å-3

  • [Delta][rho]min = -0.96 e Å-3

Table 1
Selected bond lengths (Å)

Na-O5i 2.434 (4)
Na-O6ii 2.436 (4)
Na-O3ii 2.491 (4)
Na-O2iii 2.581 (5)
Na-O2ii 2.755 (5)
Na-O1i 2.758 (4)
Na-O4i 2.788 (4)
Na-O3iii 2.958 (4)
Fe-O3iv 1.942 (4)
Fe-O1v 1.955 (4)
Fe-O5vi 2.036 (3)
Fe-O6 2.037 (4)
Fe-O4vii 2.055 (4)
Fe-O4vi 2.078 (4)
Te1-O1 1.893 (4)
Te1-O3ii 1.901 (4)
Te1-O4 1.901 (4)
Te2-O2viii 1.849 (4)
Te2-O6ix 1.892 (4)
Te2-O5x 1.899 (4)
Symmetry codes: (i) [x+{\script{1\over 2}}, -y+{\script{1\over 2}}, z]; (ii) [-x+1, -y+{\script{1\over 2}}, z+{\script{1\over 2}}]; (iii) [-x+{\script{3\over 2}}, y, z+{\script{1\over 2}}]; (iv) [-x+{\script{1\over 2}}, y+{\script{1\over 2}}, -z]; (v) [-x+{\script{1\over 2}}, y, z-{\script{1\over 2}}]; (vi) [x, y+{\script{1\over 2}}, -z+{\script{1\over 2}}]; (vii) [-x+1, -y+{\script{1\over 2}}, z-{\script{1\over 2}}]; (viii) [-x+{\script{1\over 2}}, y, z+{\script{1\over 2}}]; (ix) [-x+{\script{1\over 2}}, y-{\script{1\over 2}}, -z+1]; (x) [x-{\script{1\over 2}}, -y, -z+{\script{3\over 2}}].

Data collection: SMART (Bruker, 2002[Bruker (2002). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2002[Bruker (2002). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; method used to solve structure: coordinates taken from an isotypic structure; program(s) used to refine structure: SHELXL97 (Sheldrick, 1997[Sheldrick, G. M. (1997). SHELXL97. University of Göttingen, Germany.]); molecular graphics: ATOMS (Dowty, 2006[Dowty, E. (2006). ATOMS for Windows. Version 6.3. Shape Software, Kingsport, Tennessee, USA.]); software used to prepare material for publication: SHELXL97.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB2673 ).

Acknowledgements

Financial support by the FWF (Fonds zur Förderung der wissenschaftlichen Forschung), project P19099-N17, is gratefully acknowledged.

References

Bruker (2002). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Dolgikh, V. A. (1991). Russ. J. Inorg. Chem. (Eng. Transl.), 36, 1117-1129.
Dowty, E. (2006). ATOMS for Windows. Version 6.3. Shape Software, Kingsport, Tennessee, USA.
Miletich, R. & Pertlik, F. (1998). J. Alloys Compds, 268, 107-111.  [CrossRef] [ChemPort]
Sheldrick, G. M. (1997). SHELXL97. University of Göttingen, Germany.
Weil, M. (2005). Acta Cryst. C61, i103-i105.  [CrossRef] [details]
Weil, M. (2007). Z. Anorg. Allg. Chem. 633, 1217-1222.  [CrossRef] [ChemPort]
Weil, M. & Stöger, B. (2007). Acta Cryst. E63, i202.  [CrossRef] [details]

Acta Cryst (2008). E64, i3  [ doi:10.1107/S1600536807065403 ]

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