Complex Formation Equilibria and Potentials of Mn(III)/Mn(II) Couple in the Presence of 1,10-Phenanthroline Derivatives in Aqueous Solutions

• Autorzy: Andrijewski G. , Nowak L. , Tomczyk D. , Różański R. , Dałkowski R.
• Języki publikacji: EN

Abstrakty

EN

Formation constants ofMn(II) complexes with 5-nitro-, 5-chloro-, 5-methyl-, 4-methyl-, 2,9-dimethyl-, 4,7-dimethyl- and 5,6-dimethyl-1,10-phenanthroline and formal potentials of Mn(III)/Mn(II) couple in the presence of these compounds by use of potentiometric method were determined and used to calculate formation constants of Mn(III) complexeswith these ligands.Anumerical method of manganese(III) complexes formation constants calculation from potentiometric and voltammetric data was proposed and tested for iron(III) complexes. The influence of substituents on protonation and stability constant values was analyzed taking into account suitability of the ligand to stabilize thermodynamically unstableMn(III) ion and protect it from disproportionation.

Słowa kluczowe

EN

Mn(III)/Mn(II) couple; formal potentials; complex equilibria; stability constants

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2006
• Tom: Vol. 80, nr 5
• Strony: 693--701
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Andrijewski G.

autor

Nowak L.

autor

Tomczyk D.

autor

Różański R.

autor

Dałkowski R.

• Institute of General and Inorganic Chemistry, University of Łódź, 90-136 Łódź, ul. Narutowicza 68, Poland

Bibliografia

• 1. Ludwig M.L., Metzger A.L., Pattridge K.A. and Stallings W.C., J. BioL Chem., 219, 335 (1991);Willing A., Follmann H. and AulingG., Eur.J. Biochem., 170,603 (1988); Algood G.S. and Perry J.J. J, Bacteriol., 168, 563 (1986).
• 2. Brudvig G.W. and Crabtree R.H., Progr. Inorg. Chem., 37, 99 (1989).
• 3. Kok B., Forbush B. and McGloin M., Photochem. Photobiol., 11, 457 (1970).
• 4. Cominellis Ch. and Plattner E., Recent Advances in Electroorganic Sythesis. Proceedings of the I-st Int. Symp. of Electroorg. Synth., Kurashiki, Japan 1986, p. 463; Vaudano R, Chimia, 46, 103 (1992);Leduc R, Mansuy D., Bartoli I.F. and Battoni R, Tetrahedron Lett., 29, 205 (1988); Beioui F.,Granados S.G., Devynck J. and Biedcharreton C., New J. Chem., 15, 939 (1991).
• 5. Ignaczak M. and Andrijewski G., Russ. Inorg. Chem., 35, 973 (1990).
• 6. Ignaczak M. and Andrijewski G., Russ. Inorg. Chem., 37, 833 (1992).
• 7. Analytical chemist's handbook, WNT W-wa 1989, vol. l, p. 200 (in Polish).
• 8. Motekajtis RJ. and Martell A.E., Can. J. Chem., 60, 2403 (1982).
• 9. Ignaczak M. and Andrijewski G., Polish J. Chem., 69, 716 (1995).
• 10. Radomski R., Radomska M., Dankowski M., Szajowska K. and Wisialski Z., Computers Chem., 19, 303(1995).
• 11. Marquadt D.W., J. Soc. Ind. Appl Mathematics, 11, 431 (l 963).
• 12. Anderegg G., Helv. Chim. Acta, 43, 414 (1960).
• 13. Hamm R.E., Shull S.M. and Grant D.M., J. Am. Chem. Soc., 76, 2111 (1954).
• 14. Deneux M., Meilleur R. and Benoit R.L., Can. J. Chem., 46, 1383 (1968).
• 15. Schwarzenbach G. and Heller J., Helv. Chim. Acta, 34, 1889 (1951).
• 16. Biedermann G. and Palombari R., Acta Chem. Scand., A32, 381 (1978).