- P-ISSN 1225-0163
- E-ISSN 2288-8985
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
Article Detail
Home > Article Detail
Synthesis of new N2O2 tetradentate ligands and the substituent effect on the stability constants of the transition metal complexes
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2006, v.19 no.2, pp.131-141
&
(2006). Synthesis of new N2O2 tetradentate ligands and the substituent effect on the stability constants of the transition metal complexes. Analytical Science and Technology, 19(2), 131-141.
- Downloaded
- Viewed
Abstract
Hydrobromic acid salt of a <TEX>$N_2O_2$</TEX> tetradentate ligand, N,N'-bis(2-hydroxybenzyl)-ethylene-diamine (<TEX>$H-BHE{\cdot}2HBr$</TEX>) was synthesized. <TEX>$Br-BHE{\cdot}2HBr$</TEX>, <TEX>$Cl-BHE{\cdot}2HBr$</TEX>, <TEX>$CH_3-BHE{\cdot}2HBr$</TEX> and <TEX>$CH_3O-BHE{\cdot}2HBr$</TEX> having Br, Cl, <TEX>$CH_3$</TEX> and <TEX>$CH_3O$</TEX> substituents at 5-position of the phenol group of <TEX>$H-BHE{\cdot}2HBr$</TEX> were also synthesized. <TEX>$Nap-BHE{\cdot}2HBr$</TEX> having naphthalen-2-ol instead of the phenol group was also synthesized. The potentiometry study in aqueous solution revealed that the proton dissociations of the synthesized ligands occurred in four steps and the order of the calculated overall proton dissociation constants (<TEX>${\log}{\beta}_p$</TEX>) of each ligand was Br-BHE < Cl-BHE < H-BHE < Nap-BHE < <TEX>$CH_3$</TEX>-BHE < <TEX>$CH_3O$</TEX>-BHE. The order showed a similar trend to that of Hammett substituent constants(<TEX>${\sigma}_P$</TEX>). The order of the stability constants (<TEX>${\log}K_{ML}$</TEX>) was CO(II) < Ni(II) < Cu(II) > Zn(II) > Cd(II) > Pb(II). The order in their stability constants (<TEX>${\log}K_{ML}$</TEX>) of each transition metal complex agreed well with that of the overall proton dissociation constants (<TEX>${\log}{\beta}_p$</TEX>).
- keywords
- proton dissociation constants, potentiometry, stability constants
Reference
1
Kim, S. D, (2004) J. Enviro. Sci.,
2
Furtsch, T. A, (1982) Inorg. Chim. Acta.,
3
Kim, S. D, (1998) Anal. Sci. Tech.,
4
Kolis, J. W, (1979) Inorg. Chem.,
5
Freyberg, D. P, (1976) J.C.S. Dalton Trans.,
6
Lin, H. K, (2002) Trans. Met. Chem.,
7
Kim, S. D, (1998) J. Kor. Chem. Soc.,
8
Yang, L. W, (1995) Inorg. Chem.,
9
Wong, E, (1995) Inorg. Chem.,
10
Bannochi, C. J, (1991) Inorg. Chem.,
11
Montekatis, R. J, (1984) Inorg. Chem.,
12
Aggett, J, (1970) Anal. Chim. Acta.,
13
Aggett, J, (1970) Anal. Chim. Acta.,
14
Aggett, J, (1981) J. Inorg. Nucl. Chem.,
15
Canali, L, (1999) Chem. Soc. Rev.,
16
Hashihayata, T, (1997) Tetrahedron,
17
Jacobsen, E. N, (1997) Tetrahedron Lett.,
18
Schaus, S. E, (1998) J. Org. Chem.,
19
Sigman, M. S, (1998) J. Am. Chem. Soc.,
20
Katsuki, T, (1995) Coord. Chem. Rev.,
21
Motekaitis, R. J, (1992) Inorg. Chem.,
22
Martell, A. E, (1992) Determination and Use of Stability Constant 2nd Ed., VCH, N. Y.
23
Braithwaite, A. C, (1975) J. Inorg. Nucl. Chem.,
24
Parsons, G. H, (1975) J. Chem. Soc. Faraday I,
25
Hoefnagel, A. J, (1989) J. Chem. Soc. Perkin Trans. II,
26
March, J, (1968) Advanced Organic Chemistry: Reactions, Mechanisms and Structure, MeGraw Hill Book Company, N. Y.
27
Koseoglu, F, (1995) Talanta,
28
Koseoglu, F, (1994) Anal. Chim. Acta.,
29
Coleman, W. M, (1981) Inorg. Chim. Acta.,
Other articles from this issue
- Silver elimination effect by sulfuric acid for Ag pre-rteated activated carbon
- Synthesis of new N2O2 tetradentate ligands and the substituent effect on the stability constants of the transition metal complexes
- Analysis of malachite green and leuco-malachite green in sea food
- The study on the measurement of formaldehyde in saliva and urine by GC-MS
- A study on removal effect of Endosulfan in soil and aquatic system
- Evaluation of analytical methods for heavy metals and cyanide by certified reference materials
- Evaluation of analytical methods for several metals and fluoride by certified reference materials
- A study on the removal characteristics of bisphenol in water by coagulation
- more
Recommanded Articles
This website recommended the use the Chrome browser for journal website.