Spectrophotometric Study of Palladium(II) Complexation with Elementary Amino Acids in Aqueous Solution

被引:0
作者
Zharkov, G. P. [1 ]
Yastremskaya, M. A. [1 ]
Pavlushin, A. V. [1 ]
Petrova, Yu. S. [1 ]
Neudachina, L. K. [1 ]
机构
[1] Ural Fed Univ, Ekaterinburg 620002, Russia
关键词
glycine; beta-alanine; taurine; spectrophotometry; STABILITY-CONSTANTS; ABSORPTION-SPECTRA; METAL-COMPLEXES; AMMONIA; CATION;
D O I
10.1134/S0036023622602410
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Complex formation of aqua palladium(II) ions with glycine (Gly), beta-alanine (beta-Ala), and taurine (Tau) in aqueous solution was studied by spectrophotometric titration at I = 1.0 mol/L (HClO4 + NaClO4) and T = 25 +/- 1 degrees C. A monoligand complex appeared at pH 0 in the H-Pd-Gly system under the conditions of our experiment; mono- and biscomplexes were formed at pH 1. In the H-Pd-beta-Ala system, a monoligand complex was formed at pH 1 and mono- and biscomplexes were formed at pH 2. In the H-Pd-Tau system, a monoligand complex was formed at pH 1 and 2. Molar absorption coefficients were calculated: the peak absorption occurs at lambda = 370 nm and epsilon = 203 L/(mol cm) for the monoligand glycinate complex [PdGly(H2O)(2)](+); at lambda = 325 nm and epsilon = 274 L/(mol cm) for the biscomplex [PdGly(2)](0); at lambda = 365 nm and epsilon = 342 and 297 L/(mol cm) for the beta-alaninate [Pd beta-Ala(H2O)(2)]+ and taurinate [PdTau(H2O)(2)](+) monoligand complexes, respectively; and at lambda = 330 nm and epsilon = 549 L/(mol cm) for the beta-alaninate biscomplex [Pd beta-Ala(2)](0). Logarithmic concentration formation constants were calculated for glycinate (log beta(1) = 15.03 +/- 0.07, and log beta(2) = 28.97 +/- 0.28), beta-alaninate (log beta(1) = 13.94 +/- 0.05, and log beta(2) = 25.24 +/- 0.06), and taurinate (log beta 1 = 9.74 +/- 0.08) palladium(II) complexes.
引用
收藏
页码:294 / 300
页数:7
相关论文
共 50 条
  • [21] Dimalonate[C60]fullerene protonation and complexation with uranyl in aqueous solution.: Spectrophotometric study
    Soto-Guerrero, J
    Havel, J
    [J]. POLYHEDRON, 2003, 22 (08) : 1085 - 1090
  • [22] SPECTROPHOTOMETRIC INVESTIGATION OF PALLADIUM(II) DISULFOTON COMPLEXES IN AQUEOUS ETHANOLIC MEDIA
    SIMONOVSKA, B
    MARSEL, J
    [J]. ANALYST, 1991, 116 (03) : 317 - 320
  • [23] Volumetric and viscometric study of amino acids in aqueous sorbitol solution at different temperatures
    Ren, Xiaofen
    Zhu, Chunying
    Ma, Youguang
    [J]. JOURNAL OF CHEMICAL THERMODYNAMICS, 2016, 93 : 179 - 192
  • [24] Complexation of Cu(II) with glycine in aqueous solution of an anionic surfactant
    Vladimirova, TV
    Morgunova, EE
    Ramenskaya, LM
    [J]. RUSSIAN JOURNAL OF GENERAL CHEMISTRY, 2005, 75 (03) : 349 - 350
  • [25] Volumetric and Viscometric Study of Amino Acids in Aqueous Solution of Maltose at Different Temperatures
    Khanuja, Parvinder
    Chourey, V. R.
    [J]. ASIAN JOURNAL OF CHEMISTRY, 2013, 25 (15) : 8271 - 8274
  • [26] Complexation of Cu(II) with Glycine in Aqueous Solution of an Anionic Surfactant
    T. V. Vladimirova
    E. E. Morgunova
    L. M. Ramenskaya
    [J]. Russian Journal of General Chemistry, 2005, 75 : 349 - 350
  • [27] Copper(II) complexes of N-(phosphonomethyl)glycine in aqueous solution: a thermodynamic and spectrophotometric study
    Daniele, PG
    DeStefano, C
    Prenesti, E
    Sammartano, S
    [J]. TALANTA, 1997, 45 (02) : 425 - 431
  • [28] The complexation of novel amino acid derivatives with La(III) ion in aqueous solution
    Hyvonen, Helena
    Aksela, Reijo
    [J]. JOURNAL OF COORDINATION CHEMISTRY, 2007, 60 (7-9) : 901 - 910
  • [29] Complexation of pyrazine-2-carboxamidoxime with Cu(II), Ni(II), Co(II), Zn(II), and Cd(II) ions in aqueous solution
    Lankinen, Elina
    Paajanen, Johanna
    Salonen, Markku
    Hyvonen, Helena
    [J]. JOURNAL OF COORDINATION CHEMISTRY, 2015, 68 (19) : 3498 - 3510
  • [30] Thermodynamics of mixed-ligand complexation of mercury(II) ethylenediaminetetraacetate with histidine and lysine in aqueous solution
    Ryzhakov, A. M.
    Gruzdev, M. S.
    Pyreu, D. F.
    Kozlovskii, E. V.
    Kumeev, R. S.
    [J]. RUSSIAN JOURNAL OF COORDINATION CHEMISTRY, 2010, 36 (08) : 565 - 571