Journal of Cluster Science

, Volume 21, Issue 2, pp 211–221

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

Authors

  • Haisheng Xu
    • Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest University
    • College of Chemistry and Chemical EngineeringXi’an Shiyou University
  • Lei Zhang
    • Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest University
  • Zuoxi Li
    • Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest University
  • Zhanfeng Li
    • Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest University
  • Huaiming Hu
    • Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest University
    • Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of ChemistryNorthwest University
Original Paper

DOI: 10.1007/s10876-010-0318-6

Cite this article as:
Xu, H., Zhang, L., Li, Z. et al. J Clust Sci (2010) 21: 211. doi:10.1007/s10876-010-0318-6

Abstract

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 λmax = 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.

Keywords

Charge-transferPolyoxometalatesFerroceneStructure characterization

Supplementary material

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

Copyright information

© Springer Science+Business Media, LLC 2010