Chemical Research in Chinese Universities ›› 2003, Vol. 19 ›› Issue (2): 227-230.

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A Thermochemical Study on Complex Nickel(Ⅱ) L-α-Histidine

GAO Sheng-li, CHEN San-ping, HU Rong-zu, SHI Qi-zhen   

  1. Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi′an 710069, P.R. China
  • Received:2002-07-09 Online:2003-04-24 Published:2011-08-06
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.2017036).

Abstract: The formation enthalpy of complex nickel(Ⅱ)-histidine(His) in water was determined by means of microcalorimetry in the temperature range of 298.15-323.15 K. The standard enthalpy of the formation of Ni(His)22+(aq) was calculated. On the basis of the experimental and the calculated results, three thermodynamic parameters(the activation enthalpy, the activation entropy and the activation free energy), the rate constants, three kinetic parameters(the apparent activation energy, the pre-exponential constant and the reaction order) of the formation reaction of the title complex were obtained.

Key words: Nickel chloride, L-α-Histidine, Complex, Formation reaction, Thermokinetics