Document Type : Research Paper

Authors

University of Anbar – College of Education for Pure Science

10.37652/juaps.2015.124203

Abstract

The binding characteristics of number of axial aliphatic amines ligands were studied with Fe(ll)TPPS4 complex in aqueous solutions at hiqh PHs > 12.5 . All formed low spin octahedral complexes . Electronic absorption , ΔH , ΔG , and ΔS of these complexes have been reported and Calculated . The Path way for the axial ligation on addition of ligand to Fe(ll)TPPS4 is shown in one step . Hill Plots used to obtain the formation constants ( KF) and ( n ) number of axial ligands bonded to the iron(ll) ion . It has been found low values of the KF for these ligands comparing to those recorded in organic solvents may be due to the polar solvent , and these values ( KF) more higher than that recorded for aromatic amine with the same complex and solvents due to steric effect of the size of porphyrin ring .

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[1] J. R. Miller, Jehad A. Taies and Jack S. (1987) Mossbauer and spectroscopy studies on substituted tetraphenyl porphyrinato iron (III) complexes in aqueous solutions and the formation of the µ-oxo-bridged species :Inorg. Chim. Acta, 138, 205-214.
[2] M. F. Perutz, Senozan N. M. and Hunt R. L., (1982) J Chem. Educ, 59,173.
[3] R. F Pasternak. and Cobbs M. A. (1973), J. Inorg. Nucl. Chem., 35, 4327.
[4] N  Albert. Thompson, Krishnamurthy M. (1998)., J.Am. Chem. Soc, 120, 6183-6184.
[5] Collman, J. P., Inorg. Chem 36 5145(1997).
[6] J. Silver, Taies J. A. (1988)., Mossbauer studies on tetra and spectroscopy porpyrine iron sulfonaphthyl solutions. Inorg. Chim. Acta, 151, 69-75.
[7] D. Brautt, Rougee M. (1974)., Ferrous porphyrins in organic solvents Biochemistry, 13, 4591.
[8] G. Al-Jaff, (1986). Ph.D. thesis Chemistry dept., University of Essex.
[9] J. A. Taies, (1988). Ph.D. thesis Chemistry dept, University of Essex.
[10]  Taies, J.A. J. of university of anbar for Pure Science: Vol.6:No1(2012).
[11] Silver, Al- Jaff G. Taies J. A. (1987), Mossbauer and spectroscopy studies on concentrated protopomyrin 1X iron solutions, Inorg. Chimica. Acta, 135 .
[12] J. Silver, Lukas B. (1983), iron (II) sulfonated porphyrin Inorg Chimica Acta, 80, 107.
[13]J. D. Stong, Charles R. Hartzell, (2001) Heme models I. solution behavior of a water soluble iron porphyrin online research-Internet.
 [14]  H. M. Marques, Orde Q. Munro, Tracey(1999). Munro, Marina de Wet, and Preeti R. Vashi, Inorg. Chem., 38, 10, 2312-2319.
[15] S. C., Gandini M., Ednalva A. (2002). Spectroscopic study of a water-soluble iron (III) meso-tetra kis (4-N-methylpy- ridinvinyl) prophyrin in aqueous  solution, Internet.
[16]   A. Farajtabar,  Farrokh Gharib, Parisa A. Farajtabar, Jamaat and Nasser Safari, (2008). J. Chen. Eng. Data, 53,2, 350-354 .
[17]  R. F. Pasternack and James R. Stahlbush, (1977). J. Chem. Soc., Chem. Commun, 106-107.
[18] M. A. Lopez, Nancy J. Gardner, (2003). Free energy of CO binding to iron(ll) protoporphyrin 1X in water, Internet.
 [19] H. Ishii, Hidemasa Koh, (2002). Analytical application of porphyrins-I Spectroph- otometric determination of ultramicro amounts of copper with α, β. ɣ, ð-tetra-(3-N-methylpyridyl) porphine, Internet .
[20]  M. J. M. Nesset, Nikolai V. Shokhirev. Paul D. Enemark, Simone E. Jacobson, and F. Ann Walker, (1996).Models of the Cytochromes. Redox Properties and Thermodynamic Stabilities of Complexes of "Hindered" Iron (III) and Iron (II) Tetraphenylporphyrinates with Substituted Pyridines and Imidazoles, J. Inorg. Chem., 35, 18, 5188-5200 .
[21]  J. E. Flak, Peir D. P. Lemberg, (1910.) Haemtin Enzymes Pergamon, London, 65.
[22]  A. V. Hill, (1910). J Physiol. London, 40.10.
[23] M. Krishnamurthy, Sutter J. R (1975) J. Chem. Soc. Chem Cammun: 13.
[24] D. K. White, Cannon J. B. (1979), J. Am. Chem Soc., 101, 2443.