Chinese Science Bulletin

, Volume 45, Issue 12, pp 1079–1082 | Cite as

Synthesis, crystal structure and properties of binuclear manganese complex [(bipy)2Mn2(μ-O)(μ-Ac)2(H2O)2](ClO4)2

  • Jun Li
  • Shuming Yang
  • Fengxing Zhang
  • Zongxun Tang
  • Qizhen Shi
  • Zhongyuan Zhou
Notes

Abstract

Binuclear manganese complex [(bipy)2Mn2(μ-O)(μ-Ac)2(H2O)2](ClO4)2 was synthesized by the reaction of MnAc3 · 2H2O with 2,2′-bipyridine in the HAc-NaAc buffer (pH = 4.0). X-ray diffraction result for the single crystal shows that the crystal is monoclinic, space group C2/C, with a = 3.408 2(7),b = 0.864 4(2),c = 2.174 9(4) nm, β= 105.2∘, V=6.186(2) nm3, Z= 8. There are two very strong peaks of UV-Vis spectrum in the range of 400–600 nm, which are similar to those of Mn catalase and Mn ribonuleotide reductase extracted from organisms. Cyclic voltammogram shows that the complex in CH3CN undergoes quasi-reversible one-electron reduction and oxidation at E1/2=1.15V.

Keywords

binuclear manganese complex crystal structure synthesis properties 

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References

  1. 1.
    Vincent, L. P., Michael, J. B., Andrew, G., Interaction of manganses with dioxygen and its reduced derivatives, Chem. Rev., 1994, 94: 807.CrossRefGoogle Scholar
  2. 2.
    Andreasson, L. E., Vanngard, T., Manganese: Oxygen-evolving complex & models, in Encyclopedia of Inorganic Chemistry, Vol. 4 (ed. Bruce, K. R.), New York: John Wiley & Sons, 1992, 2101.Google Scholar
  3. 3.
    Penner-Hahn, J. E., Manganese proteins with mono- & dinuclear sites, in Encyclopedia of Inorganic Chemistry, Vol. 4 (ed. Bruce, K. R.), New York: John Wiley & Sons, 1992, 2111.Google Scholar
  4. 4.
    Wieghardt, K., Bossek, U., Ventur, D. et al., Assembly and structural characterization of binuclear μ-oxo-di- μ-acetato bridged complexes of manganese (III): Analogues of the di-iron(III) center in hemerythrin, J. Chem. Soc. Chem. Commun., 1985: 347.Google Scholar
  5. 5.
    Sheats, J. E., Czernuszewicz, R. S., Dismukes, G. C. et al., Binuclear manganese(III) complexes of potential biological significance, J. Am. Chem. Soc., 1987, 109: 1435.CrossRefGoogle Scholar
  6. 6.
    Wieghardt, K., Bossek, U., Nuber, B. et al., Synthesis crystal structure reactivity and magnetochemistry of a series of binuclear complexes of manganese (II), -(III), and -(IV) of biological relevance, J. Am. Chem. Soc., 1988, 110: 7398.CrossRefGoogle Scholar
  7. 7.
    Vincent, J. B., Folting, K., Huffman, J. C. et al., Use of tetra-n-butylammonium permanganate for inorganic syntheses in nonaqueous solvents: Preparation and structure of a manganese(III) dimmer containing bridging phenoxo oxygen atoms, Inorg. Chem., 1986,25: 996.CrossRefGoogle Scholar
  8. 8.
    McCarthy, P. J., Gudel, H. V., Optical spectroscopy of exchange-coupled transition metal complexes, Coord. Chem. Rev., 1988, 88: 69.CrossRefGoogle Scholar

Copyright information

© Science in China Press 2000

Authors and Affiliations

  • Jun Li
    • 1
  • Shuming Yang
    • 1
  • Fengxing Zhang
    • 1
  • Zongxun Tang
    • 1
  • Qizhen Shi
    • 1
  • Zhongyuan Zhou
    • 2
  1. 1.Department of ChemistryNorthwest UniversityXi’anChina
  2. 2.Chengdu Institute of Organic ChemistryChinese Academy of SciencesChengduChina

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