Advertisement

Crystal structures and magnetic properties of manganese(III) complexes with tridentate Schiff base ligands

  • Hitomi Ohmagari
  • Aya Fukahori
  • Manabu Nakaya
  • Ryo Ohtani
  • Shinya Hayami
  • Masaaki Nakamura
Original Article
  • 274 Downloads

Abstract

Manganese(III) complexes [MnL 2 1 ]BPh4 (1) and [MnL 2 2 (MeOH)2]BPh4 (2) were synthesized (HL1 = 2-{N-[2-(2-pyridyl)ethyl]iminomethyl}-6-methoxyphenol and HL2 = 2-{N-[2-(2-pyridyl)ethyl]iminomethyl}-4-methylphenol) and characterized. The crystal structures were determined by single crystal X-ray crystallography for 1 and 2 and magnetic properties were characterized by magnetic susceptibility. Compounds 1 and 2 crystallized in the triclinic system with space groups P-1. The crystal structure of 1 showed that the central manganese(III) ions were coordinated by four nitrogen and two oxygen atoms of two ligands in trans positions, exhibiting a pseudo-octahedral geometry. On the other hand, the crystal structure of 2 showed that the manganese(III) ions were coordinated by the two nitrogen and two oxygen atoms of two ligands and two methanol solvent molecules. The variable temperature-dependence magnetic susceptibilities have shown that the compounds 1 and 2 manganese(III) oxidation state; there is no magnetic interaction between complexes.

Keywords

Manganese(III) complex Schiff base ligand Magnetic property 

References

  1. 1.
    Khangulov, S.V., Pessiki, P.J., Barynin, V.V., Ash, D.E., Dismukes, G.C.: Determination of the metal ion separation and energies of the three lowest electronic states of dimanganese(II, II) complexes and enzymes: catalase and liver arginase. Biochemistry 34, 2015–2025 (1995)CrossRefGoogle Scholar
  2. 2.
    Stemmler, T.L., Sossong Jr, T.M., Goldstein, J.I., Ash, D.E., Elgren, T.E., Kurtz Jr, D.M., Penner-Hahn, J.E.: EXAFS comparison of the dimanganese core structures of manganese catalase, arginase, and manganese-substituted ribonucleotide reductase and hemerythrin. Biochemistry 36, 9847–9858 (1997)CrossRefGoogle Scholar
  3. 3.
    Yachandra, V.K., DeRose, V.J., Latimer, M.J., Mukerjee, I., Sauer, K., Klein, M.P.: Where plants make oxygen: a structural model for the photosynthetic oxygen-evolving manganese cluster. Science 260, 675–679 (1993)CrossRefGoogle Scholar
  4. 4.
    Hoganson, C.W., Babcock, G.T.: A Metalloradical mechanism for the generation of oxygen from water in photosynthesis. Science 277, 1953–1956 (1997)CrossRefGoogle Scholar
  5. 5.
    Tommos, C., Babcock, G.T.: Oxygen production in nature: a light-driven metalloradical enzyme process. Acc. Chem. Res. 31, 18–25 (1998)CrossRefGoogle Scholar
  6. 6.
    Dube, C.E., Wright, D.W., Pal, S., Bonitatebus Jr, P.J., Armstrong, W.H.J.: Tetranuclear manganese-oxo aggregates relevant to the photosynthetic water oxidation center. crystal structure, spectroscopic properties and reactivity of adamantane-shaped [Mn4O6(bpea)4]4+ and the reduced mixed-valence analog [Mn4O6(bpea)4]3+. J.  Am. Chem. Soc. 120, 3704–3716 (1998)CrossRefGoogle Scholar
  7. 7.
    Limburg, J., Vrettos, J.S., Liable-Sands, L.M., Rheingold, A.L., Crabtree, R.H., Brudvig, G.W.: A functional model for O–O bond formation by the O2-evolving complex in photosystem II. Science 283, 1524 (1999)CrossRefGoogle Scholar
  8. 8.
    Ruettinger, W.F., Dismukes, G.C.: Conversion of core oxos to water molecules by 4e/4H+ reductive dehydration of the Mn4O2 6+ core in the manganese-oxo cubane complex Mn4O4(Ph2PO2)6: a partial model for photosynthetic water binding and activation. Inorg. Chem. 39, 1021–1027 (2000)CrossRefGoogle Scholar
  9. 9.
    Matsumoto, N., Sunatsuki, Y., Miyasaka, H., Hashimoto, Y., Luneau, D., Tuchagues, J.P.: [{Mn(salen)CN}n]: the first one-dimensional chain with alternating high-spin and low-spin MnIII centers exhibits metamagnetism. Angew. Chem. Int. Ed. 38, 171 (1999)CrossRefGoogle Scholar
  10. 10.
    Costes, J.P., Dahan, F., Donnadieu, B., Douton, M.J.R., Garcia, M.I.F., Bousseksou, A., Tuchagues, J.P.: Synthesis, structures, and magnetic properties of novel mononuclear, tetranuclear, and 1D chain MnIII complexes involving three related asymmetrical trianionic ligands. Inorg. Chem. 43(8), 2736–2744 (2004)CrossRefGoogle Scholar
  11. 11.
    Cdiou, C., Murrie, M., Paulsen, C., Villar, V., Wernsdorfer, W., Winpenny, R. E. P.: Studies of a nickel-based single molecule magnet: resonant quantum tunneling in an S = 12 molecule. Chem. Commun. 24, 2666-2667 (2001)Google Scholar
  12. 12.
    Wernsdorfer, W., Aliaga-Alcalde, N., Hendrickson, D.N., Christou, G.: Exchange-biased quantum tunneling in a supramolecular dimer of single-molecule magnets. Nature 416, 406–409 (2002)CrossRefGoogle Scholar
  13. 13.
    Gatteschi, D., Sessoli, R.: Quantum tunneling of magnetization and related phenomena in molecular materials. Angew. Chem. Int. Ed. 42, 268–297 (2003)CrossRefGoogle Scholar
  14. 14.
    Sen, S., Mitra, S., Luneau, D., Salah El Fallah, M., Joan, R.: Synthesis, crystal structure and magnetic properties of two new manganese Schiff base complexes [Mn2(L1)2(NCS)2] and [Mn(L2)(N3)(H2O)] [{L1H = C13H10N2O2}; and {L2H2 = C19H22N2O4}]. Polyhedron 25, 2737–2744 (2006)CrossRefGoogle Scholar
  15. 15.
    Gao, E.Q., Bai, S.O., He, Z., Yan, C.H.: Tetramanganese(II) cluster with centered trigonal topology: structure and magnetic properties. Inorg. Chem. 44, 677–682 (2005)CrossRefGoogle Scholar
  16. 16.
    Okawa, H., Nakamura, M., Kida, S.: Binuclear metal complexes. XLII. Manganese(IV) complexes synthesized by owidation of binuclear manganese(II) complexes of 2-(salicylidene-amino)phenols with tetrachloro-o-benzoquinone. Bull. Chem. Soc. Jpn. 55, 466–470 (1982)CrossRefGoogle Scholar
  17. 17.
    Mikuriya, M., Nukada, R., Tokami, W., Hashimoto, Y., Fujii, T.: Synthesis and characterization of manganese(III) complexes with 2-{N-[2-(4-imidazolyl)ethyl]iminomethyl}phenol or 2-{N-[2-(2-pyridyl)ethyl]iminomethyl}phenol. Bull. Chem. Soc. Jpn. 69, 1573–1578 (1996)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Hitomi Ohmagari
    • 1
  • Aya Fukahori
    • 1
  • Manabu Nakaya
    • 1
  • Ryo Ohtani
    • 1
  • Shinya Hayami
    • 1
    • 2
  • Masaaki Nakamura
    • 1
  1. 1.Department of Chemistry, Graduate School of Science and TechnologyKumamoto UniversityKumamotoJapan
  2. 2.Institute of Pulsed Power Science (IPPS)Kumamoto UniversityKumamotoJapan

Personalised recommendations