Abstract
Interaction of some amines with inorganic ligands was studied potentiometrically in aqueous solutions at 25°C at different ionic strengths. The systems taken into account were: meta-PP, meta-TPP, en-PP, en-TPP, en-HPO 2−4 , dap-SO 2−4 , tetren-HPO 2−4 , 6da-PP and 8da-TPP (meta=methylamine, en=ethylenediamine, tetren=tetraethylenepentamine, dap=1,2-diaminopropane, 6da=1,6-hexanediamine, 8da=1,8-octanediamine, PP=pyrophosphate, TPP=tripolyphosphate). Several ALHr species are formed for all the studied mixed systems (A=amine, L =inorganic ligand), and in some cases ApLqHr species were also found. The stability of mixed proton-ligand-ligand species is proportional to the charges involved in the complexation reaction and, to some extent, it depends on steric characteristic of the ligands. A simple relationship has been found between formation constants of mixed ligand species and charges involved in the complexation reaction. The ionic strength dependence of formation constants has been taken into account, and it was found that, also for these types of mixed complexes, a general equation independent of the nature of the reactants can be used.
Similar content being viewed by others
References
P. G. Daniele, A. De Robertis, C. De Stefano, S. Sammartano, and C. Rigano,J. Chem. Soc. Dalton Trans. 2353 (1985).
A. De Robertis, C. De Stefano, S. Sammartano, and C. Rigano,Talanta 34, 933 (1987).
P. G. Daniele, A. De Robertis, C. De Stefano, A. Gianguzza, and S. Sammartano.J. Chem. Res. (S)300 (1990) (M) 2316 (1990).
P. G. Daniele, A. De Robertis, C. De Stefano, and S. Sammartano,Ann. Chim. (Rome)80, 177 (1990).
A. De Robertis, and C. De Stefano,Talanta 38, 439 (1991).
G. Cuffari, A. De Robertis, C. De Stefano, and C. Foti,J. Chem. Res. (S) 264, (M) 2501 (1991).
A. De Robertis, C. Foti, and A. Gianguzza,Annali di Chimica 83, 485 (1993).
S. Capone, A. Casale, A. Curró, A. De Robertis, C. De Stefano, S. Sammartano, and R. Scarcella,Ann. Chim. (Rome)76, 441 (1986); A. Casale, A. De Robertis, and F. Licastro,Thermochim. Acta 143, 289 (1989).
P. G. Daniele, A. De Robertis, C. De Stefano, and S. Sammartano,J. Solution Chem. 18, 23 (1989).
A. Casale, A. De Robertis, F. Licastro, and C. Rigano,J. Chem. Res. (S) 204, (M) 1601–1620 (1990).
A. De Robertis, C. De Stefano, and G. Patané,Thermochim. Acta 209, 7 (1992).
A. De Robertis, C. De Stefano, G. Patané, and S. Sammartano,J. Solution Chem. 22, 927 (1993).
P. G. Daniele, A. De Robertis, C. De Stefano, D. Gastaldi, and S. Sammartano,Ann. Chim. (Rome),83, 575 (1993).
C. De Stefano, A. Gianguzza, and S. Sammartano,Talanta 40, 629 (1993).
L. Abate, A. De Robertis, and C. Rigano,J. Solution Chem. 22, 339 (1993).
E. Kimura, A. Sakonaka, T. Yatsunami, and M. Kodama,J. Am. Chem. Soc. 103, 3041 (1981).
M. W. Hosseini and J. M. Lenh,J. Am. Chem. Soc. 104, 3535 (1982).
E. Kimura, M. Kodama, and T. Yatsunami,J. Am. Chem. Soc. 104, 3182 (1982).
B. Dietrich, J. M. Lehn, C. Pascard, and E. Sonveaux,Helvetica Chimica Acta 67, 91 (1984).
M. W. Hosseini and J. M. Lehn,Helvetica Chimica Acta 69, 587 (1986).
M. W. Hosseini and J. M. Lehn,Helvetica Chimica Acta 70, 1312 (1987).
I. Labadi, E. Jenei, R. Labti, and H. Lonnberg,Acta Chem. Scand. 45, 1055 (1991).
C. De Stefano, P. Princi, C. Rigano, and S. Sammartano,Ann. Chim. (Rome)77, 643 (1987).
C. De Stefano, P. Mineo, C. Rigano, and S. Sammartano,Ann. Chim. (Rome)83, 243, (1993).
A. Casale, P. G. Daniele, A. De Robertis, and S. Sammartano,Ann. Chim. (Rome)78, 249 (1988).
A. Casale, P. G. Daniele, C. De Stefano, and S. Sammartano,Talanta 36, 903 (1989).
P. G. Daniele, A. De Robertis, C. De Stefano, and S. Sammartano, inMiscellany of Scientific Papers Offered to Enric Casassas, S. Alegret, J. J. Arias, D. Bercelo, J. Casal, G. Rauret, eds. (Universitat Autonoma de Barcelona, Bellaterra, Spain 1991); and references therein.
R. W. Chlebek and M. W. Lister,Can. J. Chem. 44, 437 (1966).
R. M. Smith and A. E. Martell,Amines, Vol. 2: “Critical Stability Constants,” (Plenum Press, London, 1975).
P. G. Daniele, A. De Robertis, C. De Stefano, A. Gianguzza, and S. Sammartano,J. Solution Chem. 20, 495 (1991).
C. De Stefano, C. Rigano, S. Sammartano, and R. Scarcella,J. Chem. Res., (S) 372 (1988).
C. De Stefano, C. Foti, and A. Gianguzza,J. Chem. Res. (S) 464, (M) 2639.
A. Vacca and A. Sabatini, inMetal Complexes in Solution, E. A. Jenne, E. Rizzarelli, V. Romano, and S. Sammartano, eds., (Piccin, Padua, 1986).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Daniele, P.G., Prenesti, E., De Stefano, C. et al. Formation and stability of proton-amine-inorganic anion complexes in aqueous solution. J Solution Chem 24, 325–341 (1995). https://doi.org/10.1007/BF01150872
Issue Date:
DOI: https://doi.org/10.1007/BF01150872