M?ssbauer spectra of Eu(III) and Gd(III) complexes of phosphine oxides with chelating perchlorate

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• 作者：Masashi Takahashi (1) takahasi@chem.sci.toho-u.ac.jp
  Yuya Hirai (1)
• 关键词：Lanthanide complex – Phosphine oxide – Perclorato complex – Emission spectra – M?ssbauer spectra
• 刊名：Hyperfine Interactions
• 出版年：2012
• 出版时间：March 2012
• 年：2012
• 卷：205
• 期：1-3
• 页码：37-40
• 全文大小：271.0 KB
• 参考文献：1. Sarsfield, M. J. , Sutton, A. D., May, I., John, G. H. , Sharrad, C., Helliwell, M.: Chem. Commun. 2320–2321 (2004)
  2. Sutton, A. D., May, I. Sharrad, C. A., Sarsfield, M. J., Helliwell, M.: Dalton Trans. 5734–5742 (2006)
  3. Berthet, J. C., Lance, M., Nierlich, M., Ephritikhine, M.: Eur. J. Inorg. Chem. 2005–2007 (1999)
  4. Cousins, D. R., Hart, F. A.: J. Inorg. Nucl. Chem. 29, 1745–1757 (1967)
  5. Wang, J., Abe, J., Kitazawa, T., Takahashi, M., Takeda, M.: Z. Naturforsch. 57a, 581–585 (2002)
  6. Valle, G., Casotto, G., Zanonato, P. L., Zarli, B.: Polyhedron 5, 2093–2096 (1986)
  7. Takeda, M., Wang, J., Nishimura, T., Suzuki, K., Kitazawa, T., Takahashi, M.: Hyperfine Interact. 156/157, 359–364 (2004) <Occurrence Type="Bibcode"><Handle>2004HyInt.156..359T</Handle></Occurrence>
• 作者单位：1. Toho University, Funabashi, Chiba 274-8510, Japan
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Nuclear Physics, Heavy Ions and Hadrons
  Atoms, Molecules, Clusters and Plasmas
  Condensed Matter
  Surfaces and Interfaces and Thin Films
  
• 出版者：Springer Netherlands
• ISSN：1572-9540

文摘

The reaction of Ln(ClO₄)₃· nH₂O with triphenylphosphine oxide (TPPO) in methanol has led to the formation of [Ln(ClO₄)₂(tppo)₄]ClO₄·MeOH (Ln = Nd, Eu, Gd, Dy, Yb), in which the perchlorate anion acts as a symmetric bidentate. The emission spectra of Eu(III)-TPPO complexes, showing enhancement in the intensity due to the phenyl group, indicate an isotropic electron distribution for the nitrato complex [Eu(NO₃)₃(tppo)₂(EtOH)]. 151Eu and 155Gd M?ssbauer spectra of the TPPO complexes also lead to the same conclusion.