Abstract
Four 5-coordinate zinc complexes containing the tripod ligand, tris(2-benzimidazolylmethyl)amine (ntb), and four different α,β-unsaturated carboxylates (L1–4), with compositions [Zn(ntb)(L1–4)](NO3)·nH2O (L1 = acrylate; L2 = α-methacrylate; L3 = trans-cinnamate; L4 = 2-hydroxycinnamate; n = 1, 1.5 and 2), were synthesized and characterized by means of elemental analyses, electrical conductivities, thermal analyses, i.r., u.v., and 1H-n.m.r. spectra. The novel crystal structure of [Zn(ntb)(L3)](NO3)·H2O·DMF has been determined by a single-crystal X-ray diffraction method, and shows that each zinc ion is linked to a tris(2-benzimidazolymethyl)amine (ntb) unit and a trans-cinnamate. The zinc ion is 5-coordinate with a N4O ligand set. The coordination geometries of the zinc ion may be best described as a distorted trigonal bipyramid of site symmetry C3.
Similar content being viewed by others
References
C.T. Branden, The Enzymes, 3rd edit., Academic press, New York, 1975, p. 104.
K.A. Thomas, B.H. Rubin, C.J. Bier, J.S. Richardson and D.C. Richardson, Proc. Natl. Acad. Sci., 72, 134 (1975).
J.S. Valentine and D.M. Defreitas, J. Chem. Educ., 62, 990 (1985).
D.C. Richardson, K.A. Thomas, E.W. Silverton and D.R. Davies, J. Mol. Biol., 102, 221 (1976).
W.H. Zhou, Z.W. Miao, X.L. Liu, F.M. Miu, H.G. Wang and X.K. Yao, Chinese J. Struct. Chem., 3, 204 (1999).
L.K. Thompson, B.S. Ramaswamy and E.A. Seymour, Can. J. Chem., 55, 878 (1977).
N. Matsumoto, T. Akui, A. Ohyoshi and H. Okawa, Bull. Chem. Soc. Jpn., 6, 2250 (1988).
W.J. Geary, Coord. Chem. Rev., 82, 122 (1971).
C.Y. Su, B.S. Kang, C.X. Du, Q.C. Yang and T.C.W. Mak, Inorg. Chem., 39, 4843 (2000).
T.J. Lane, I. Nakagawa, J.L. Walter and A.J. Kandathil, Inorg. Chem., 1, 267 (1962).
M. Mckee, M. Zvagulis and C.A. Reed, Inorg. Chem., 24, 2914 (1985).
J. Catterick and P. Thornton, Adv. Inorg. Chem., 20, 291 (1977).
S. Musumeci, E. Rizzarelli, S. Sammartano and A. Seminaba, Z. Anorg. Allg. Chem., 433, 297 (1977).
Y.Y. Wang, Q. Shi, Q.Z. Shi, Y.C. Gao and Z.Y. Zhou, Polyhedron, 18, 2009 (1999).
K. Nakamoto, Infrared and Raman Spectra of Inorganic and Coordination Compounds, 3rd Edit., Wiley, New York, 1978, p. 255.
Asahi Research Center, Handbook of Proton-n.m.r. Spectra and Data Academic press, Tokyo, 1986, vol. 6, p. 24; (b) Asahi Research Center, Handbook of Proton-n.m.r. Spectra and Data, Academic press, Tokyo, 1985, vol. 1, p. 151; (c) Asahi Research Center, Handbook of Proton-n.m.r. Spectra and Data, Academic press, Tokyo, 1986, vol. 3, p. 281, 283.
A.R. Oki, P.K. Bommarreddy and H.M. Zhang, Inorg. Chim. Acta., 231, 109 (1995).
R.M. Buchanan, R.J. Obrien and J.F. Richardson, Inorg. Chim. Acta., 214, 33 (1993).
C.Y. Su, B.S. Kang, X.Q. Mu, J. Sun, Y.X. Tong and Z.N. Chen, Aust. J. Chem., 51, 565 (1998); (b) C.Y. Su, B.S. Kang, C.X. Du, Q.C. Yang and T.C.W. Mak, Inorg. Chem., 39, 4843 (2000).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wu, Hl., Gao, Yc. & Yu, Kb. Synthesis, crystal structure and characterization of zinc(II) complexes with the tripod ligand tris(2-benzimidazolylmethyl)amine and α,β-unsaturated carboxylates. Transition Metal Chemistry 29, 175–179 (2004). https://doi.org/10.1023/B:TMCH.0000019416.72896.c5
Issue Date:
DOI: https://doi.org/10.1023/B:TMCH.0000019416.72896.c5