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- W2013973018 abstract "The kinetics of complexation of Ni(II) by pterin was studied in aqueous solutions with a stopped-flow apparatus under conditions of pseudo-first order in the temperature range 5–45°C, pH between 4.0 and 6.5, and ionic strength 0.4 M. The equilibrium constants, stoichiometry, and pKa of the ligand and complex were also determined using a spectrophotometric technique. The results are consistent with the formation of a 1:1 complex between the metal ion and pterin. The first-order experimental rate constant kapp is pH independent and shows the following dependence with the ion metal concentration at 25°C: kapp/s−1 = 3.8 × 10−3 + 1.6 × 10−4 × [Ni(II)]−1. A global activation energy of 57 ± 2 kJ/mol associated with the formation of a 1:1 chelate was measured. © 2000 John Wiley & Sons, Inc. Int J Chem Kinet 32: 231–237, 2000" @default.
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- W2013973018 date "2000-01-01" @default.
- W2013973018 modified "2023-10-15" @default.
- W2013973018 title "Kinetics and equilibrium study of nickel(II) complexation by pterin" @default.
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- W2013973018 doi "https://doi.org/10.1002/(sici)1097-4601(2000)32:4<231::aid-kin5>3.0.co;2-y" @default.
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