Abstract
Three chromium(III) complexes with asparagine (Asn) and histidine (His) of the [Cr(ox)2(Aa)]2− type, where Aa = N,O–Asn, N,O–His or N,N′–His, were obtained and characterized in solution. The complexes with N,O–Aa undergo acid-catalysed aquation to give a free amino acid and cis-[Cr(ox)2(H2O)2]−, whereas the complex with N,N′–His undergoes parallel reaction paths: (1) isomerization to the N,O–His complex and (2) liberation of an oxalate ligand. Kinetics of the N,O–Aa complexes in HClO4 media were studied spectrophotometrically under pseudo-first-order conditions. The absorbance changes were attributed to the chelate ring opening at the Cr–N bond. The linear dependence of rate constants on [H+] was established, and a mechanism for the chelate ring cleavage was postulated. The existence of a metastable intermediate with O-monodentate Aa ligand was proved experimentally. Effect of [Cr(ox)2(Aa)]2− on 3T3 fibroblasts proliferation was studied. The tests revealed low cytotoxicity of the complexes. Complexes with Ala, His and Cys are good candidates for biochromium sources.
Similar content being viewed by others
References
Anderson RA (1998) J Am Coll Nutr 17:548
Cefalu W, Bell-Farrow A, Stegner J et al (1999) J Trace Elem Exp Med 12:71
Vincent JB (2001) Polyhedron 20:1
Slesinski RS, Clarke JJ, San RHC, Gudi R (2005) Mutation Res 585:86
Nielsen FH (2007) Summary: the clinical and nutritional importance of chromium—still debated after 50 years of research. In: Vincent JB (ed) The nutritional biochemistry of Chromium(III). Elsevier, Amsterdam, pp 265–276
Vincent JB (2010) Dalton Trans 39:3787
Levina A, Codd R, Dillon CT, Lay PA (2003) Chromium in biology: toxicology and nutritional aspects. In: Karlin KD (ed) Progress in inorganic chemistry, vol 51., WileyHoboken, NJ, pp 145–250
Kita E, Lisiak R (2011) Transit Met Chem 36:855
Marai H, Kita E, Wojciechowska J, Wróbel P (2012) Transit Met Chem 37. doi:10.1007/s11243-012-9579-2
Anderson RA, Polansky MM, Noella AB (2004) United States Patent US 6,689,383 B1, Feb.10, 2004
Metzler DE (2001) Biochemistry. Academic Press, Harcourt, p 53
Sekizaki M (1979) Bull Chem Soc Jpn 52:403
Stephens FS, Vagg RS, Williams PA (1977) Acta Crystallogr Sect B Struct Crystallogr Cryst Chem 33:433
Ono T, Shimanouchi H, Sasada Y, Sakurai T, Yamauchi O, Nakahara A (1979) Bull Chem Soc Jpn 52:2229
Ama T, Rashid MM, Saker AK, Miyakawa H, Yonemura T, Kawaguchi H, Yasui T (2001) Bull Chem Soc Jpn 74:2327
Tessier C, Rochon FD, Beauchamp AL (2002) Inorg Chem 41:6527
Pennington WT, Cordes AW, Kyle D, Wilson Junior EW (1984) Acta Crystallogr Sect C Cryst Struct Commun 40:1322
Deschamps P, Kulkarni PP, Sarkar B (2004) Inorg Chem 43:3338
Flook RJ, Freeman HC, Moore CJ, Scudder ML (1973) Chem Commun 19:753
Carvalho JF (2004) Acta Crystallogr Sect E: Struct Rep Online 60:m1428
Madafiglio K, Manning TM, Murdoch CM, Tulip WR, Cooper MK, Hambley TW, Freeman HC (1990) Acta Cryst C46:554
MacDiarmig AG, ed-in-chief (1977) Inorg synthesis, vol 17. Mc Graw-Hill Inc, New York, p 149
Kita E, Marai H, Muzioł T, Lenart K (2011) Transit Met Chem 36:35
Kita E, Marai H, Jasiński M, Drewa T (2008) Transit Met Chem 33:585
Kita E, Marai H, Lisiak M, Jasiński M, Drewa T (2010) Transit Met Chem 35:184
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Marai, H., Kita, E., Kiersikowska, E. et al. Kinetic studies on H+-catalysed aquation of chromium(III)-oxalato-asparaginato and chromium(III)-oxalato-histidinato complexes. Transition Met Chem 37, 337–344 (2012). https://doi.org/10.1007/s11243-012-9594-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11243-012-9594-3