Spectrophotometric Determination of the pK_a Values of Some Aminoacid Complexes of Pentacyanoferrate(II) and Pentacyanoruthenate(II)

Authors

Yakup BARAN
Şebnem BARAN
N. Kemal TUNALI

Abstract

The syntheses, pK_a and spectrospcopic characterization of [Fe(CN)_5(H_2O)]^{-3} and [Ru(CN)_5(H_2O)]^{-3} complexes of alanine(Ala), glycine(Gly), valine(Val), lysine(Lys), arginine(Arg) and cysteine(Cys) complexes were investigated in aqueous solution. The spectra of the complexes containing amino acid ligands were similar to that of [Fe(CN)_5(NH_3)]^{-3}. The pK_a values of the complexes were measured by spectrophotometric titration at 22^{\circ}C and \mu =0.100 M(NaClO_4).

DOI

-

First Page

105

Last Page

110

Recommended Citation

BARAN, Yakup; BARAN, Şebnem; and TUNALI, N. Kemal (1997) "Spectrophotometric Determination of the pK_a Values of Some Aminoacid Complexes of Pentacyanoferrate(II) and Pentacyanoruthenate(II)," Turkish Journal of Chemistry: Vol. 21: No. 2, Article 6. Available at: https://journals.tubitak.gov.tr/chem/vol21/iss2/6