Synthesis and physico-chemical and spectroscopic investigations of sodium dihydrobis (1,2,3-benzotriazoly) borate ligand and its transition metal complexes
Synthesis and physico-chemical and spectroscopic investigations of sodium dihydrobis (1,2,3-benzotriazoly) borate ligand and its transition metal complexes
The title ligand, sodium dihydrobis(1,2,3-benzotriazolyl)borate, $Na[H_2B(BTz)_2]$,was synthesized by refluxing 1 mole of sodium borohydride with 2 moles of 1,2,3- benzotriazole in toluene. The ligand shows ample reactivity towards Cr(III), Mn(II), Fe(III), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) metal ions and forms stable complexes. The ligand and its metal complexes were characterized by physico-chemical and spectroscopic techniques. All the complexes of divalent metal ions are tetrahedral except for Cu(II), which has been proposed to have a square-planar geometry. The complexes of Cr(III) and Fe(III) appear to have an octahedral geometry. The magnitude of molar conductance of $10^{-3}$ M solution indicates that all the complexes are non-electrolytic.
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- 1. S. Trofimenko, "Scorpionates - the Coordination Chemistry of Polypyrazolborate Ligands", Imperial College Press, London, 1999.
- 2. G. Davidson, Coordin. Chem. Rev. 30, 74 (1979).
- 3. S. Trofimenko, Chem. Rev. 72, 497 (1972).
- 4. S. Trofimenko, Chem. Rev. 93, 943 (1993).
- 5. S. Trofimenko, J. Am. Chem. Soc. 88, 1842 (1966).
- 6. N. Kitajima and Y. Moro-oka, Chem. Rev. 94, 737 (1994).
- 7. N. Kitajima, K. Fujisawa, C. Fujimoto, Y. Moro-oka, S. Hashimoto, T. Kitagawa, K. Toriumi, K. Tatsumi and A. Nakamura, J. Am. Chem. Soc. 144, 1277 (1992).
- 8. M. Akita and S. Hikichi, Bull. Chem. Soc, Jpn. 75, 1657 (2002).
- 9. K. Clare, T. Hascall and G. Perkin, Inorg. Chem. 36, 5680 (1997).
- 10. K. Ohta, M. Hashimoto, Y. Takahashi, S. Hikichi, M. Akita and Y. Moro-oka, Organometallics 18, 3234 (1999).
- 11. D. Carmona, F.J. Lahoz, R. Atencio, A.J. Edwards, L.A. Oro, M.P. Lamate, M. Esteban and S. Trofimenko, Inorg. Chem. 35, 2549 (1996).
- 12. S.L. Guo, F. Peters, F.F. Biani-de, J.W. Bats, E. Herdtweck, P. Zanello and M. Wagner, Inorg. Chem. 40,4928 (2001).
- 13. J.C. Calabrese, S. Trofimenko and J.S. Thompson, J. Chem. Soc; Chem. Commun. 1122 (1986).
- 14. A.L. Rheingold, G.P.A. Yap, L.M. Liable-Sands, I.A. Guzei and S. Trofimenko, Inorg. Chem. 36, 6261 (1997).
- 15. R.A. Kresinski, L. Isam, T.A. Hamor, C.J. Jones and J.A. McLeverty, J. Chem. Soc, Dalton Trans. 1835 (1991).
- 16. A. Albinati, M. Bovens, H. Riiegger and L.M. Venanzi, Inorg. Chem. 36, 5991 (1997).
- 17. H.V.R. Dias, Z. Wang and W. Jin, Inorg. Chem. 36, 6205 (1997).
- 18. T. Desmond, F.J. Lalor, G. Ferguson, B. Ruhl and M. Parvez, J. Chem. Soc; Chem. Commun., 55 (1983).
- 19. G.G. Lobbia, M. Pellei, C. Pettinari, C. Santini, B.W. Skelton, N. Somers and A.H. White, J. Chem. Soc;Dalton. Trans. 2333 (2000).
- 20. C. Janiak, S. Temizdemir and C.Z. Rohr, Anorg. Allg. Chem. 626, 1265 (2000).
- 21. C. Janiak, S. Temizdemir, S. Dechert, W. Deck, F. Girgsdies, J. Heinze, M.J. Kolm, T.G. Scharmann and O. Zipffel, Eur. J. Inorg. Chem. 12, 29 (2000).
- 22. C. Janiak, T.G. Scharmann, P. Albrecht, F. Marlow and R. MacDonald, J. Am. Chem. Soc. 118, 6307 (1996).
- 23. M. Cano, J.A. Campo, J. Heras and E. Pinilla, Polyhedron, 15, 1705 (1996).
- 24. I. Lopes, A.C. Hiller, S.Y. Liu, A. Domingos, J. Ascenso, A. Galvao, A. Sella and N. Marques, Inorg. Chem.40, 1116 (2001).
- 25. A.L. Rheingold, C.D. Incarvito and S. Trofimenko, Inorg. Chem. 39, 5569 (2000).
- 26. A.A. Eagle, E.R.T. Tickink and C.G. Young, Inorg. Chem. 36, 6315 (1997).
- 27. M. Suva, A. Domingos, A.P. Matos, N. Marques and S. Trofimenko, J. Chem. Soc. Dalton. Trans. 4628 (2000).
- 28. M. Akita, Y. Takahashi, S. Hikichi and Y. Moro-oka, Inorg. Chem. 40, 169 (2001).
- 29. M.R. Mahmoud, A.M. Hammam, S.A. El-Gyar and S.A. Ibrahim, Monatsh. Chem. 117, 313 (1986).
- 30. S.A. Ibrahim, M.A. El-Gahami, Z.A. Khafagi and S.A. El-Gyar, J. Inorg. Biochem. 43, 1 (1991).
- 31. S.K. Bansal, S. Tikku, R.S. Sidhu and Y. Singh, J. Ind. Chem. Soc. 68, 556 (1991).
- 32. W.J. Geary, Coord. Chem. Rev. 7, 81 (1971).
- 33. V.B. Rana, J.N. Gurtu and M.P. Teotia, J. Inorg. Nucl. Chem. 42, 331 (1980).
- 34. R.W. Hay and M.T.H, Tarafdar, J. Chem. Soc; Dalton. Trans. 823 (1991).
- 35. R.A. Ghiladi, R.M. Kretzer, I. Guzei, A.L. Rheingold, Y. Neuhold, K.R. Hatwell, A.D. Zuberbuhler and K.D.Karlin, Inorg. Chem. 40, 5754 (2001).
- 36. Y.Z. Hamada, B.L. Carlson and J.T. Shank, Synth. & React. Inorg. Met-Org. Chem. 33, 1425 (2003).
- 37. B.N. Figgis, "Introduction to Ligand Fields", Interscience Publishers, John Wiley and Sons, New York,1967, p.285.
- 38. F.A. Cotton, D.M.L. Goodgame and M. Goodgame, J. Am. Chem. Soc. 84, 167 (1962).
- 39. F.A. Cotton, G. Wilkinson, C.A. Murillo and M. Bochmann, "Advanced Inorganic Chemistry", John Wiley and Sons, New York, 1999, p.784.
- 40. N. Shirasawa, T.T. Nguyet, S. Hikichi, Y. Moro-Oka and M. Akita, Organomet. 20, 3582 (2001).
- 41. S. Hikichi, H. Komatsuzaki, M. Akita and Y. Moro-oka, J. Am. Chem. Soc. 20, 4699 (1998).
- 42. A. Christensen, H.S. Jensen, V. McKee, C.J. McKenzie and M. Munch, Inorg. Chem. 36, 6080 (1997).
- 43. F.A. Cotton, G. Wilkinson, C.A. Murillo and M. Bochmann, "Advanced Inorganic Chemistry", John Wiley and Sons, New York, 1999, p.841.
- 44. A.L. Nivorozhkin, H. Toftlund, P.L. Jorgensen and L.E. Nivorozhkin, J. Chem. Soc; Dalton. Trans. 1215 (1996).
- 45. S.J. Barclay and K.N. Raymond, Inorg. Chem. 25, 3561 (1986).