Issue

Vol. 26 No. 16 (2014): Vol 26 Issue 16

Copyright (c) 2014 AJC

Creative Commons License

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

Synthesis and Structural Characterization of Five-Coordinate Cobalt(II) Complexes Based on tris(2-Benzimidazolymethyl)amine Ligand

https://doi.org/10.14233/ajchem.2014.16328
Chun-Hua Ge
College of Chemistry, Liaoning University, Shenyang 110036, P.R. China
Li-Hua Li
College of Chemistry, Liaoning University, Shenyang 110036, P.R. China
Ying-Qi Wang
College of Chemistry, Liaoning University, Shenyang 110036, P.R. China
Rui Zhang
College of Chemistry, Liaoning University, Shenyang 110036, P.R. China
Xiang-Dong Zhang
College of Chemistry, Liaoning University, Shenyang 110036, P.R. China

Corresponding Author(s) : Xiang-Dong Zhang

xdzhang@lnu.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 16 (2014): Vol 26 Issue 16

Abstract

The synthesis and characterization of three new complexes 2[Co(ntb)(H2mpda)]·(CH3COCH3)·4H2O (1), [Co(ntb)(H2mpda)]·3H2O (2) and 2[Co(ntb)Cl]·[Co(edta)]·6H2O (3) (ntb = N,N,N-tris(2-benzimidazolymethyl)amine, H4mpda = 1,3-phenylenedinitrilotetraacetic acid and H4edta = ethylenediamine tetraacetic acid) are reported. The molecular structures of these complexes are confirmed by single-crystal X-ray structure analysis. The reaction of Co(NO3)2 with ntb and H4mpda in acetone/H2O/ethanol or DMF/H2O/methanol gives 1 and 2, respectively, while the reaction of CoCl2 with ntb and H4edta in H2O/methanol gives 3. Mononuclear [Co(ntb)(L)] motif is found in all the compounds, in which Co(II) is in a five-coordinate environment with a tetradentate N4 coordination ntb ligand and a monodentate second ligand. The diversity of solvent in 1 and 2 results in slight difference in the coordinate and crystal packing structure. 3 is an ionic compound, containing [Co(ntb)Cl]+ cations and [Co(edta)]2- anions. The solvent plays significant role in the stabilization of all the three-dimensional supramolecular networks through hydrogen bonds.

Keywords

Co(II) complex Five-coordination N,N,N-tris(2-benzimidazolymethyl)amine Crystal structure
Ge, C.-H., Li, L.-H., Wang, Y.-Q., Zhang, R., & Zhang, X.-D. (2014). Synthesis and Structural Characterization of Five-Coordinate Cobalt(II) Complexes Based on tris(2-Benzimidazolymethyl)amine Ligand. Asian Journal of Chemistry, 26(16), 5093–5096. https://doi.org/10.14233/ajchem.2014.16328
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. J. He, J.X. Zhang, G.P. Tan, Y.G. Yin, D. Zhang and M.H. Hu, Cryst. Growth Des., 7, 1508 (2007); doi:10.1021/cg070320v.
  2. M. Mehring, G. Gabriele, S. Hadjikakou, M. Schürmann, D. Dakternieks and K. Jurkschat, Chem. Commun., 834 (2002); doi:10.1039/b111337b.
  3. A.D. Garnovskii, I.S. Vasilchenko, D.A. Garnovskii and B.I. Kharisov, J. Coord. Chem., 62, 151 (2009); doi:10.1080/00958970802398178.
  4. K. Ghosh, N. Tyagi, P. Kumar, U.P. Singh and N. Goel, J. Inorg. Biochem., 104, 9 (2010); doi:10.1016/j.jinorgbio.2009.09.014.
  5. M.F. Brown, B.R. Cook and T.E. Sloan, Inorg. Chem., 17, 1563 (1978); doi:10.1021/ic50184a035.
  6. X. Meng, L. Liu, H. Zhang, Y. Luo and C. Liu, Dalton Trans., 40, 12846 (2011); doi:10.1039/c1dt10695c.
  7. J.J. Jiang, S.R. Zheng, Y. Liu, M. Pan, W. Wang and C.Y. Su, Inorg. Chem., 47, 10692 (2008); doi:10.1021/ic801516b.
  8. J.J. Jiang, L. Li, M.H. Lan, M. Pan, A. Eichhöfer, D. Fenske and C.Y. Su, Chem. Eur. J., 16, 1841 (2010); doi:10.1002/chem.200901929.
  9. A.R. Oki, P.K. Bommarreddy, H.M. Zhang and N. Hosmane, Inorg. Chim. Acta, 231, 109 (1995); doi:10.1016/0020-1693(94)04352-V.
  10. X.D. Zhang, C.H. Ge, F. Yu, Q.T. Liu and M.L. Zhu, Acta Crystallogr. C, 63, m519 (2007); doi:10.1107/S0108270107047294.
  11. SAINT, Software for SMART Detector, Bruker Axs Inc. Madison, Wisconsin, USA.
  12. G.M. Sheldrick, SADABS. Program for Empirical Absorption Correction of Area Detector Data, University of Gottingen, Germany (1996).
  13. (a) G.M. Sheldrick, SHELXS-97, Structure Solving Program, University of Göttingen, Germany (1997); (b) G.M. Sheldrick, SHELXL-97, Program for the Refinement of Crystal Structures from Diffraction Data, University of Göttingen, Germany (1997); (c) G.M. Sheldrick, Acta Crystallogr. A, 64, 112 (2008); doi:10.1107/S0108767307043930.
  14. M.S. Lah and M. Moon, Bull. Korean Chem. Soc., 18, 406 (1997).
Read More
Author biographies is not available.
Download
PDF
Statistic
Read Counter : 0 Download : 0