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Structural analysis of group V, VI, VII metal compounds by XAFS and DFT calculation

Tetsuya Shishido1, Hiroyuki Asakura1, Seiji Yamazoe2, Kentaro Teramura3 and Tsunehiro Tanaka1

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The characteristics of K, L1 and L3-edges XANES spectra of group IV, V, VI compounds, which have different coordination number, number of d-electrons and the symmetry of coordination sphere, have been classified. Two pd transitions were observed in the second derivative spectra of L3-edge XANES spectra of all group IV, V, VI compounds. These two transitions can be assigned to split d orbitals. The splitting and area of the two resonances depend on the symmetry of coordination sphere because the splitting corresponds to ligand field splitting of d orbitals. The splitting of d orbitals has a correlation with the pre-edge peak area of K or L1-edge XANES spectra, which are attributed to the dipole forbidden transition of sd occurred by mixing of p orbitals with d orbitals. This correlation is supported by DFT calculations of several group IV, V, VI structural models (four-, five- and six-coordinated). The clarification of the correlation between the splitting of the resonance and the structure of group IV, V, VI metal is important to provide structural information in unknown group IV, V, VI metal site.


PACS

61.66.Fn Inorganic compounds

71.20.Ps Other inorganic compounds

71.15.Mb Density functional theory, local density approximation, gradient and other corrections

71.70.Ch Crystal and ligand fields

78.70.Dm X-ray absorption spectra

Subjects

Condensed matter: electrical, magnetic and optical

Condensed matter: structural, mechanical & thermal

Dates

Issue 1 (2009)



  1. Structural analysis of group V, VI, VII metal compounds by XAFS and DFT calculation

    Tetsuya Shishido et al 2009 J. Phys.: Conf. Ser. 190 012073

  2. Detection of Extended Red Emission in the Diffuse Interstellar Medium

    Karl D. Gordon et al. 1998 ApJ 498 522

  3. List of participants

    2001 Class. Quantum Grav. 18

  4. How to find long narrow-band gravitational wave transients with unknown frequency evolution

    Péter Raffai et al 2007 Class. Quantum Grav. 24 S457

  5. Submillimeter Array Observations of CS J = 14-13 Emission from the Evolved Star IRC +10216

    K. H. Young et al 2004 ApJ 616 L51

  6. Creation of strings in the early universe

    T Dobrowolski 2002 Class. Quantum Grav. 19 3153

  7. M theory, G2-manifolds and four-dimensional physics

    B S Acharya 2002 Class. Quantum Grav. 19 5619

  8. Origin of the pre-edge structure at the Al K-edge: The role of atomic vibrations

    Delphine Cabaret and Christian Brouder 2009 J. Phys.: Conf. Ser. 190 012003

  9. Super-hydrophobic surfaces from a simple coating method: a bionic nanoengineering approach

    Yuyang Liu et al 2006 Nanotechnology 17 3259

  10. Quasi-spin method for jj coupling in the theory of many-electron atoms

    J M Kaniauskas and Z B Rudzikas 1980 J. Phys. B: At. Mol. Phys. 13 3521

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