Thermodynamic Parameters for the Formation of Pyrophosphate-protonated Polyamine Complexes

Journal of Chemical Research - Part S

Volumn , Issue 8, 1998, Pages 480-481

  De Stefano, Concetta ^a   Foti, Claudia ^a   Giuffrè, Ottavia ^a  

^a UNIVERSITY OF MESSINA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 2542442920     PISSN: 03082342     EISSN: None     Source Type: Journal    
DOI: 10.1039/a801425f     Document Type: Article

References (12)

1. C. De Stefano, C. Foti, O. Giuffrè and S. Sammartano, Talanta, 1996, 43, 707.
2. A. Bianchi, M. Micheloni and P. Paoletti, Coord. Chem. Rev., 1991, 110, 17.
3. R. M. Izatt, K. Pawlak and J. S. Bradshaw, Chem. Rev., 1995, 95, 2529.
4. I. Labadi, E. Jenei, R. Lahti and H. Lönnbers, Acta Chem. Scand., 1991, 45, 1055
5. P G. Daniele, A. De Robertis, C De Stefano, C. Foti, O. Giuffrè. E. Prenesti and S. Sammartano, Ann. Chim. (Rome), 1997, 87, 415.
6. C. De Stefano, C Foti, A. Gianguzza, O. Giuffrè and S. Sammartano, J. Chem. Soc., Faraday Trans., 1996, 92, 1511.
7. Note that the equilibrium constants (and the ΔG° values reported in Table 1) for reaction (1) refer to the most probable reaction, as a function of protonation constant values of pyrophosphate and amines, whilst the formation parameters (Table 2) for i = n (maximum degree of amme protonation) often refer to a hypothetical reaction. Nevertheless, these last parameters are useful in recognising patterns and empirical relationships.
8. Correlation coefficients are: ΔG°, r = 0.9953, 0.9905 and 0.9274, and for TΔS°, r = 0.9914, 0.9819 and 0.9797, for j = 0, 1 and 2, respectively. On the basis of a student's t test these values are always highly significant.
9. A. De Robertis, C. De Stefano and C. Rigano. Thermochim. Acta, 1989, 138, 141.
10. A. De Robertis, C. De Stefano, C. Rigano and S. Sammartano, J. Chem. Res. (S). 1986, 194.
11. C. De Stefano, C. Foti and A. Gianguzza, J. Chem. Res., 1994, (S) 464; (M), 2639.
12. A. Casale, C. Fou, S. Sammartano and G. Signorino, Ann. Chim. (Rome), 1998, 88, 55.