Abstract
This contribution reports the results of potentiometric and Mössbauer investigations on the formation, stability, and structure of binary and ternary mono- and binuclear complexes of Sn2+ with three hydroxocarboxylic ligands (namely L = tartrate, malate, and citrate) and chloride at T = 298.15 K in different ionic media and ionic strengths (0.15 and 1.00 mol dm−3 in NaCl(aq) and 1.00 mol dm−3 in NaNO3(aq)). The stability constants of various simple Sn i H j L (2i+j−kz) k and mixed Sn i H j L k Cl (2i+j−kz−l) l species obtained in the different experimental conditions are reported, and various speciation diagrams of the simple and mixed systems are shown in different conditions. The sequestering ability of the three ligands toward Sn2+ was assessed by means of the calculation of the pL0.5 parameter at different ionic strengths and in the different ionic media. The effect of the chloride anion on the stability of various species and on the sequestering ability of the investigated ligands toward Sn2+ was also evaluated. The structural results obtained by Mössbauer spectroscopy supported the speciation schemes obtained by the potentiometric investigations and indicated the possible trigonal bipyramidal arrangement of various Sn2+/ligand species. Measurements at different temperatures were also performed in the case of citrate, in order to estimate the temperature dependence of the stability of these species. A modified version of the computer program STACO is briefly presented here for the first time and allows the simultaneous determination of the stability constants and the enthalpy changes of various species from potentiometric titrations at different temperatures.
Graphical abstract
Similar content being viewed by others
References
Cigala RM, Crea F, De Stefano C, Lando G, Milea D, Sammartano S (2012) Geochim Cosmochim Acta 87:1
Cigala RM, Crea F, De Stefano C, Lando G, Manfredi G, Sammartano S (2012) J Mol Liquids 165:143
Cigala RM, Crea F, De Stefano C, Lando G, Milea D, Sammartano S (2012) J Chem Thermodyn 51:88
Bulten EJ, Meinema HA (1991) Tin. In: Merian E (ed) Metals and their compounds in the environment. Occurrence, analysis and biological relevance. VCH, Weinheim, p 1243
Anger JP (2004) Tin. In: Merian E, Anke M, Ihnat M, Stoeppler M (eds) Elements and their compounds in the environment, 2nd edn. Wiley-VCH Verlag, Weinheim, p 1113
Rosenberg E (2005) Speciation of tin. In: Cornelis R, Crews H, Caruso J, Heumann KG (eds) Handbook of elemental speciation II: species in the environment, food, medicine and occupational health. Wiley, Chichester, p 422
Séby F, Potin-Gautier M, Giffaut E, Donard OFX (2001) Geochim Cosmochim Acta 65:3041
Nelson DL, Cox MM (2008) Lehninger principles of biochemistry, 5th edn. Freeman, New York
Berto S, Crea F, Daniele PG, Gianguzza A, Pettignano A, Sammartano S (2012) Coord Chem Rev 256:63
Casale A, De Stefano C, Manfredi G, Milea D, Sammartano S (2009) Bioinorg Chem Appl 2009:219818. doi:10.1155/2009/219818
Crea F, De Stefano C, Milea D, Sammartano S (2009) J Solution Chem 38:115
Crea F, De Stefano C, Milea D, Sammartano S (2010) Monatsh Chem 141:511
De Stefano C, Lando G, Milea D, Pettignano A, Sammartano S (2010) J Solution Chem 39:179
Gianguzza A, Milea D, Pettignano A, Sammartano S (2010) Environ Chem 7:259
Berto S, Crea F, Daniele PG, De Stefano C, Prenesti E, Sammartano S (2012) Radiochim Acta 100:13
Gianguzza A, Giuffrè O, Piazzese D, Sammartano S (2012) Coord Chem Rev 256:222
Bretti C, Cigala RM, Lando G, Milea D, Sammartano S (2012) J Agric Food Chem 60:8075
De Stefano C, Sammartano S, Mineo P, Rigano C (1997) Computer tools for the speciation of natural fluids. In: Gianguzza A, Pelizzetti E, Sammartano S (eds) Marine chemistry: an environmental analytical chemistry approach. Kluwer, Amsterdam, p 71
Foti C, Sammartano S (2010) J Chem Eng Data 55:904
Crea F, Milea D, Sammartano S (2005) Talanta 65:229
Crea F, Milea D, Sammartano S (2005) Ann Chim (Rome) 95:767
Crea P, De Stefano C, Milea D, Sammartano S (2008) Mar Chem 112:142
Amico P, Daniele PG, Ostacoli G, Arena G, Rizzarelli E, Sammartano S (1985) Transition Met Chem 10:11
Daniele PG, De Robertis A, Ostacoli G, Sammartano S, Zerbinati O (1988) Transition Met Chem 13:87
Daniele PG, De Robertis A, De Stefano C, Gianguzza A, Sammartano S (1990) J Chem Res (S) 300: (M) 2316
Arifin Z, Filmore EJ, Donaldson JD, Grimes SM (1984) J Chem Soc Dalton Trans 1965
Cheng HS, Hsu CM, Shih LL (1984) J Chin Chem Soc 31:117
Donaldson JD, Grimes SM, Nicolaides A, Smith PJ (1985) Polyhedron 4:391
De Stefano C, Foti C, Giuffrè O, Mineo P, Rigano C, Sammartano S (1996) Ann Chim (Rome) 86:257
Clarke ECW, Glew DN (1966) Trans Faraday Soc 62:539
De Stefano C, Foti C, Giuffrè O, Sammartano S (2001) J Chem Eng Data 46:1417
Braibanti A, Ostacoli G, Paoletti P, Pettit LD, Sammartano S (1987) Pure Appl Chem 59:1721
Acknowledgments
The authors thank the Universities of Messina and Palermo for partial financial support.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Cigala, R.M., Crea, F., De Stefano, C. et al. Speciation of tin(II) in aqueous solution: thermodynamic and spectroscopic study of simple and mixed hydroxocarboxylate complexes. Monatsh Chem 144, 761–772 (2013). https://doi.org/10.1007/s00706-013-0961-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00706-013-0961-3