Evaluation of Hexadate Ligand 1, 3-bis(2,2’:6’,2’’-Terpyridyl-5-Ylmethylsulfany l)Propane in the Determination of Iron(II) in Solution by Spectrophotometric and Fluoremetric Methods of Analysis
Uv-visible and fluorescence
spectra of the ligand 1,3-bis(2,2’:6’,2’’-ter- pyridyl-5-ymethylsulfanyl)propane L and it’s iron(II) complex have been investigated for
analytical purposes. The two spectra of L and terpy are very similar which
confirmed the ability of L to co-ordinate through the six N atoms of L with
minimum distortion of the metal ion’s octahedral geometry. The ligand-based
absorption band of L is shifted to the longer wavelength. It was found that L is able to displace the two terpyridine groups in the complex to give [FeL]2 .
The high stability of the complex makes it good in spectrophotometry
analysis of metals ions in solution. The fluorescence of L was progressively
quenched with an increasing concentration of iron(II). This makes L a
possible reagent for the quantitative analysis of metal by measuring fluorescence
quenching.
Cite this paper
Maritim, P. K. (2017). Evaluation of Hexadate Ligand 1, 3-bis(2,2’:6’,2’’-Terpyridyl-5-Ylmethylsulfany l)Propane in the Determination of Iron(II) in Solution by Spectrophotometric and Fluoremetric Methods of Analysis. Open Access Library Journal, 4, e3715. doi: http://dx.doi.org/10.4236/oalib.1103715.
Morgan, G.T. and Burstall, F.H. (1937) Researches on Residual Affinity and Co-Ordination. Part XXXVII. Complex Me-tallic Salts Containing 2:6-di-2’- Pyridylpyridine (2:2’:2’’-Tripyridyl). Journal of the Chemical Society, 1649-1655.
https://doi.org/10.1039/JR9370001649
Constable, E.C. and Ward, M.D. (1988) A Convenient, High Yield Synthesis of 2,2’:6’,2’’-Terpyridine and Its Iron(II) Complex. Inorganica Chimica Acta, 141, 201-203.
Alcock, N.W., Clarke, A.J., Moore, P., Crawle, S., Sheldon, P., Smith, S.M. and Turonek, M.L. (1995) 4,8,11-Tetrakis{(2,2’-Bipyridyl-5’-Ylmethyl)-bis(2,2’-bipyridyl)Ruthenium(II)}-1,4,8,11-Tetraazacyclotetradecane (L1), a Macrocyclic pH and Transition Metal Ion Fluorescence Sensor. Equilibrium, and Stopped-Flow Kinetic, Fluorimetric Studies of the Reactions of L1 with Nickel(II) and Copper(II) Ions in Aqueous Solution at Neutral pH. Inorganica Chimica Acta, 240, 159.
Constable, E.C. and Thomson, A.M.W.G. (1992) Ligand Reactivity in Iron(II) Complexes of 4’-(4’’’-Pyridyl)-2,2’:6’,2’’-Terpyridine. Journal of the Chemical Society, Dalton Transactions, No. 20, 2947-2950.
https://doi.org/10.1039/DT9920002947
Joscean, A.M. and Moore, P. (1998) Comparison of the Rates and Mechanisms of Formation and Solvolysis of [Fe(bipy)3]2 (Bipy = 2,2’-Bipyridine) and [FeL]2 [L = 1,4,7-tris(2,2’-Bipyridyl-5-Ylmethyl)-1,4,7-Triazacyclononane] and Their Stabilities in Dimethylformamide Solution. J. Chem. Soc. Dalton. Tans., 369-374.
Morris, R.L. (1952) Determination of Iron in Water in Presence of Heavy Metals. Analytical Chemistry, 24, 1376-1378.
https://doi.org/10.1021/ac60068a039
Sheldon, P. (1994) Coordination Chemistry of Azamacrocycles Functionalised with N-Pendant Pyridyl, Bipyridyl and Terpyridyl Arms. PhD Thesis, University of Warwick, War-wick.
Constable, E.C., Lewis, J., Liprot, M.C. and Raithy, P.R. (1990) The Coordination Chemistry of 4’-Phenyl-2,2’:6’, 2’’-Terpyridine; the Synthesis, Crystal and Molecular Structures of 4’-Phenyl-2,2’:6’,2’’-Terpyridine and bis(4’-Phenyl-2,2’:6’,2’’-Terpyri- dine)Nickel(II) Chloride Decahydrate. Inorganica Chimica Acta, 178, 47-54.
Priimov, G.U., Moore, P., Maritim, P.K., Butalanyi, P.K. and Alcock, N.W. (2000) Synthesis of Two Covalently Linked Bis(2,2’:6’,2’’-Terpyridine) (Terpy) Chelating Ligands with Different Length Spacers, Comparison of the Crystal Structures of Their Mononuclear Nickel(II) Complexes, and Kinetic and Mechanistic Studies of the Reaction of One Ligand with [Fe(terpy)2]2 . Journal of the Chemical Society, Dalton Transactions, No. 4, 445-449.
Moore, P. (1972) Analysis of Kinetic Data for a First-Order Reaction with Unknown Initial and Final Readings by the Method of Non-Linear Least Squares. Journal of the Chemical Society, Faraday Transaction I, 68, 1890-1893.
https://doi.org/10.1039/f19726801890
