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http://dx.doi.org/10.5012/jkcs.2003.47.6.569

Synthesis of New N2O Tridentate Ligands and Their Stability Constants of Transition Metal Complexes  

Kim, Sun-Deuk (Department of Material Science, Deagu University)
Park, Young-Sik (Department of Material Science, Deagu University)
Publication Information
Journal of the Korean Chemical Society / v.47, no.6, 2003 , pp. 569-577 More about this Journal
Abstract
Ligands, Br-PEMP, Cl-PEMP and $CH_3O-PEMP$ having Br, Cl and $CH_3O$ substituents at 5-position of the $N_2O$ tridentate ligand, 2-[(2-pyridine-2-ethylamio)-methyl]-phenol (H-PEMP) containing pyridine and phenol were synthesized. Another ligand, Naph-PEMP having pyridine and 2-hydroxy-1-naphthalene was also synthesized. The ligands were characterized using elemental analysis, UV-visible, IR, $^1H\;NMR\;and\;^{13}C$ NMR spectroscopy and mass analysis. The potentiometric titration study in aqueous solution revealed that the proton dissociation of the ligands occurred in three steps and the order of overall proton dissociation constants (log${\beta}$) was $CH_3O-PEMP$ > Naph-PEMP > H-PEMP > Cl-PEMP > Br-PEMP. The order of stability constants (logML and log$ML_2$) of their transition metal complexes was Co(II) < Ni(II) < Cu(II) > Zn(II). The order in their stability constants values of each transition metal complex agreed well with that in overall proton dissociation constant value of the ligands.
Keywords
Tridentate Ligand; Overall Proton Dissociation Constant; Stability Constant;
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1 Coleman, W. M.; Goehring, L. T.; Tay1or, L. T.; Mason, J. G.; Boggess, R. K. J. Am. Chem. Soc. 1979, 101, 2311.   DOI   ScienceOn
2 Kim, S. D.; Jang, K H.; Kim, J. K. J. Kor. Chem. Soc. 1998, 42, 539.
3 Kim, S. D.; Kim, J. K; Park, Y. Y. Anal. Sci. & Tech. 1999, 12, 397.
4 Uma, R.; Viswaathan, R.; Palaniandavar, M.; Lakshminarayanan, M, J. Chem. Soc. Dalton Trans. 1994, 1219.
5 Martll, A. E.; Monkatis, R. J. Determination and Use of Stability Constant, 2nd Ed.; VCH, N.Y. 1992.
6 Taylor, L. T.; Coleman, W. M. lnorg. Chim. Acta. 1982, 63, 183.   DOI   ScienceOn
7 Xie, Y.; Bu, W.; Chan, A. S-C.; Xu, X.; Qingliang.; Zhang, Z.; Yu, J.; Fan, Y. Inorg. Chim. Acta. 2000, 310, 257.   DOI   ScienceOn
8 Amudha, P.; Thirumavalavan, M.; Kandaswamy, M. Polyhedron. 1999, 18, 1371.   DOI   ScienceOn
9 Tandon, S. S.; Chander, S.; Thompson, L. K. lnorg. Chim. Acta. 2000, 300, 683.   DOI   ScienceOn
10 Tandon, S. S.; Chander, S.; Thompson, L. K.; Bridson, J. N.; McKee, V. lnorg. Chim. Acta. 1994, 219, 55.   DOI   ScienceOn
11 Uma, R.; Viswanthan, R.; Palanianiandavar, M.; Lakshminarayanan, M. J. Chem. Soc. Dalton Trans. 1994, 1219.
12 Koseog1u, F.;Kilic, E.; Uysal, D. Talanta. 1882, 42, 1875.   DOI   ScienceOn
13 Gerald, H.; Pasons, G. H.; Rochester, C. H. J. Chem. Soc. Faraday. I. 1975, 71, 1058.   DOI
14 Ki1ic, E.; Koseoglu, F.; Basgute, O. Anal. Chim. Acta. 1994, 294, 215.   DOI   ScienceOn
15 Hoefnagel, A. J.; Wepster, B. M. J. Chem. Soc. Perkin Trans. II. 1989, 977.
16 Park, B. K.; Lee, G. Y. J. Kor. Chem. Soc. 1986, 30, 172.
17 Coleman, W. M. lnorg. Chim. Acta 1981, 53, 191.   DOI   ScienceOn
18 March, J. Advanced Organic Chemistry: Reaction, Mechanisms and Structure; MaGraw Hill Book Company: New York, 1968, p 241.
19 Coleman, W. M.; Taylor, L. T. J. Am. Chem. Soc. 1978, 100, 1705.   DOI
20 Boggess, R. K.; Co1eman, W. M.; Tay1or, L. T. lnorg. Chim. Acta. 1980, 38, 183.   DOI   ScienceOn
21 Coleman,W.M.; Taylor, L. T. lnorg. Chem. 1977, 16, 1114.   DOI
22 Weyhermuller, T.; Paine, T. K.; Bothe, E.; Bill, E.; Chaudhuri, P. Inorg. Chim. Acta. 2002, 337, 344.   DOI   ScienceOn