Journal of Cluster Science

, Volume 21, Issue 2, pp 211–221 | Cite as

Structural and Spectral Characterization of Two Charge-Transfer Salts Formed by Ferrocenyl and Polyoxometalate Units

  • Haisheng Xu
  • Lei Zhang
  • Zuoxi Li
  • Zhanfeng Li
  • Huaiming Hu
  • Ganglin Xue
Original Paper


Two charge-transfer (CT) salts based on the ferrocenyl cation CpFeCpCH2N+(CH3)3 and Keggin-type anion [PW12O40]3− or [SiMo12O40]4− with the ratio of ferrocenyl:polyanion of 3:1 or 4:1, [CpFeCpCH2N(CH3)3]3[PW12O40] (1) and [CpFeCp-CH2N+(CH3)3]4[SiMo12O40] (2), were synthesized in high yields (68–71%) by traditional solution synthetic method and their structures were determined by X-ray diffraction analysis. The two salts both crystallize in triclinic space group \( P\overline{1} \) and show the close interaction of the cyclopentadienyl ligand with the surface of the polyoxometalate. The UV–Vis diffuse reflectance spectra of 1 and 2 in the solid state indicate the presence of a new absorption band at λ max = 550 and 630 nm, respectively, attributed to charge-transfer transitions between the ferrocenyl donors and the POM acceptors. The large difference of the shapes and positions of fluorescence emission bands of salts from the start materials also suggested the occurrence of a charge transfer process between the ferrocenyl cation and polyanion.


Charge-transfer Polyoxometalates Ferrocene Structure characterization 



This work was supported by the National Natural Science Foundation of China (20973133), the Education Commission of Shaanxi Province (09JK783) and National Training Fund for the basic sciences (J083417/J0104).

Supplementary material

10876_2010_318_MOESM1_ESM.docx (286 kb)
Supplementary material 1 (DOCX 286 kb)


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Haisheng Xu
    • 1
    • 2
  • Lei Zhang
    • 1
  • Zuoxi Li
    • 1
  • Zhanfeng Li
    • 1
  • Huaiming Hu
    • 1
  • Ganglin Xue
    • 1
  1. 1.Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest UniversityXi’anChina
  2. 2.College of Chemistry and Chemical EngineeringXi’an Shiyou UniversityXi’anChina

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