Issue

Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

Copyright (c) 2015 AJC

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Magnetic, Photophysical and Thermal Properties of Complexes of Iron(II) with Structurally Different Schiff Bases

https://doi.org/10.14233/ajchem.2015.17829
Norbani Abdullah
Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
Afiq Azil
Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
Anita Marlina
Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
Nur Linahafizza M. Noor
Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

Corresponding Author(s) : Norbani Abdullah

norbania@um.edu.my

Asian Journal of Chemistry, Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

Abstract

Three Fe(II) complexes of structurally different Schiff bases i.e., [Fe(L1)2](BF4) (1), [Fe2(OOC(CH2)14CH3)2(L2)(H2O)2] (2) and [Fe2(OOC(CH2)14CH3)2(L3)(H2O)4]·2.5H2O (3), were synthesized and characterised for potential uses as spin crossover and low band gap materials with metallomesogenic properties. Complex 1 was obtained in a one-pot reaction involving Fe(BF4)2 with L1, while compounds 2 and 3 were obtained by step-wise reactions involving [Fe(OOC(CH2)14CH3)2(EtOH)] with H2L2 and H2L3, respectively. At room temperature, compound 1 has a low-spin Fe(II) atom while both compounds 2 and 3 have two high-spin Fe(II) atoms. The values for the optical band gap (Eg) were 1.8 eV for compound 1, 1.9 eV for compound 2 and 2.3 eV for compound 3. These complexes were thermally stable, with decomposition temperature of 260 °C for compound 1, 205 °C for compound 2 and 250 °C for compound 3. Complexes 1 and 2 exhibited mesomorphisms while 3 was not mesomorphic.

Keywords

Iron(II) Schiff base Spin crossover Bandgap Metallomesogen
Abdullah, N., Azil, A., Marlina, A., & Linahafizza M. Noor, N. (2015). Magnetic, Photophysical and Thermal Properties of Complexes of Iron(II) with Structurally Different Schiff Bases. Asian Journal of Chemistry, 27(7), 2359–2364. https://doi.org/10.14233/ajchem.2015.17829
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. P. Gütlich and H.A. Goodwin, Spin Crossover in Transition Metal Compounds, In: Topics in Current Chemistry, Springer, Berlin-Heidelberg, pp. 233-235 (2004).
  2. A. Abedi, V. Amani, R. Bocá, L. Dlháň, H.R. Khavasi and N. Safari, Inorg. Chim. Acta, 395, 58 (2013); doi:10.1016/j.ica.2012.10.037.
  3. C. Atmani, F. El Hajj, S. Benmansour, M. Marchivie, S. Triki, F. Conan, V. Patinec, H. Handel, G. Dupouy and C.J. Gómez-García, Coord. Chem. Rev., 254, 1559 (2010); doi:10.1016/j.ccr.2009.11.004.
  4. A.B. Gaspar, M. Seredyuk and P. Gütlich, J. Mol. Struct., 924-926, 9 (2009); doi:10.1016/j.molstruc.2008.11.021.
  5. Y. Bodenthin, G. Schwarz, Z. Tomkowicz, M. Lommel, Th. Geue, W. Haase, H. Möhwald, U. Pietsch and D.G. Kurth, Coord. Chem. Rev., 253, 2414 (2009); doi:10.1016/j.ccr.2008.10.019.
  6. P. Gütlich, Struct. Bond., 44, 83 (1981); doi:10.1007/BFb0111269.
  7. S. Ferrere and B.A. Gregg, J. Am. Chem. Soc., 120, 843 (1998); doi:10.1021/ja973504e.
  8. S. Ferrere, Chem. Mater., 12, 1083 (2000); doi:10.1021/cm990713k.
  9. S. Ferrere, Inorg. Chim. Acta, 329, 79 (2002); doi:10.1016/S0020-1693(01)00743-5.
  10. S. Günes and N.S. Sariciftci, Inorg. Chim. Acta, 361, 581 (2008); doi:10.1016/j.ica.2007.06.042.
  11. N. Sekar and V.Y. Gehlot, Resonance, 15, 819 (2010); doi:10.1007/s12045-010-0091-8.
  12. A. Hagfeldt, G. Boschloo, L. Sun, L. Kloo and H. Pettersson, Chem. Rev., 110, 6595 (2010); doi:10.1021/cr900356p.
  13. J. Song, Z. Luo, H. Zhu, Z. Huang, T. Lian, A.L. Kaledin, D.G. Musaev, S. Lense, K.I. Hardcastle and L. Hill, Inorg. Chim. Acta, 363, 4381 (2010); doi:10.1016/j.ica.2010.07.022.
  14. R.M. O’Donnell, P.G. Johansson, M. Abrahamsson and G.J. Meyer, Inorg. Chem., 52, 6839 (2013); doi:10.1021/ic302339a.
  15. P.G. Bomben, K.C.D. Robson, B.D. Koivisto and C.P. Berlinguette, Coord. Chem. Rev., 256, 1438 (2012); doi:10.1016/j.ccr.2012.02.005.
  16. V.B. Badwaik, R.D. Deshmukh and A.S. Aswar, J. Coord. Chem., 62, 2037 (2009); doi:10.1080/00958970902741244.
  17. Y.-G. Li, D.-H. Shi, H.-L. Zhu, H. Yan and S.W. Ng, Inorg. Chim. Acta, 360, 2881 (2007); doi:10.1016/j.ica.2007.02.019.
  18. P.G. Cozzi, Chem. Soc. Rev., 33, 410 (2004); doi:10.1039/b307853c.
  19. A.D. Garnovskii, A.L. Nivorozhkin and V.I. Minkin, Coord. Chem. Rev., 126, 1 (1993); doi:10.1016/0010-8545(93)85032-Y.
  20. A.M. Giroud-Godquin, Coord. Chem. Rev., 178-180, 1485 (1998); doi:10.1016/S0010-8545(98)00081-2.
  21. G.S. Attard and P.R. Cullum, Liq. Cryst., 8, 299 (1990); doi:10.1080/02678299008047349.
  22. S.T. Ha, G.Y. Yeap and P.L. Boey, Int. J. Phys. Sci., 5, 2185 (2010).
  23. J. Seo, S.T. Moon, J. Kim, S.S. Lee and K.M. Park, Bull. Korean Chem. Soc., 24, 17 (2003); doi:10.5012/bkcs.2003.24.1.017.
  24. B.C. Smith, Infrared Spectral Interpretation: A Systematic Approach, CRC Press, United States (1998).
  25. G.B. Deacon and R.J. Philips, Coord. Chem. Rev., 33, 227 (1980); doi:10.1016/S0010-8545(00)80455-5.
  26. A.B.P. Lever, Inorganic Electronic Spectroscopy, Elsevier, Amsterdam, edn 2, p. 437 (1984).
  27. C. Huang, Y. Chan, F. Liu, D. Tang, J. Yang, Y. Lai, J. Li and Y. Liu, J. Mater. Chem., 1, 5402 (2013); doi:10.1039/c3ta00191a.
  28. O. Kahn, Molecular Magnetism, VCH Publishers Inc., New York (1993).
  29. J.P. Jesson, S.Trofimenko and D.R.Eaton, J. Am. Chem. Soc., 89, 3158 (1967); doi:10.1021/ja00989a015.
  30. G. Sowjanya, N.C.G. Reddy, S.L. Reddy, B.J. Reddy and R.L. Frost, Spectrochim. Acta A, 71, 751 (2008); doi:10.1016/j.saa.2007.12.053.
  31. P. Gütlich, A.B. Gaspar and Y. Garcia, Beilstein J. Org. Chem., 9, 342 (2013); doi:10.3762/bjoc.9.39.
  32. Y. Farina and D.A. Rice, Pertanika J. Sci. Technol., 3, 211 (1995).
  33. S. Hayami, Y. Kojima, D. Urakami, K. Ohta and K. Inoue, Polyhedron, 28, 2053 (2009); doi:10.1016/j.poly.2009.01.029.
Read More
Author biographies is not available.
Download
PDF
Statistic
Read Counter : 1 Download : 0