| A Thermochemical Study on Complex Nickel(Ⅱ) L-α-Histidine |
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| 引用本文： | GAO Sheng li **,CHEN San ping,HU Rong zu and SHI Qi zhen Shaanxi Key Laboratory of Physico Inorganic Chemistry,Department of Chemistry,Northwest University,Xi′an 710069,P.R. China. A Thermochemical Study on Complex Nickel(Ⅱ) L-α-Histidine[J]. 高等学校化学研究, 2003, 19(2) |
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| 作者姓名： | GAO Sheng li ** CHEN San ping HU Rong zu and SHI Qi zhen Shaanxi Key Laboratory of Physico Inorganic Chemistry Department of Chemistry Northwest University Xi′an 710069 P.R. China |
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| 作者单位： | GAO Sheng li **，CHEN San ping，HU Rong zu and SHI Qi zhen Shaanxi Key Laboratory of Physico Inorganic Chemistry，Department of Chemistry，Northwest University，Xi′an 710069，P.R. China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(No.2 0 170 36 ) |
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| 摘 要： | IntroductionNickel is an essential trace biological element.L-α- Amino acids are the structural units of pro-teins.L- α- Histidine is one of the eight species ofamino acids which have to be absorbed from foodbecause they are not synthesized by organism.Thus,the investigation on the complexation ofnickel and L -α- histidine is of considerable practicaland fundamental importance.For the nickel com-plexes of amino acids,more extensive work hasbeen carried out[1— 3 ] . However,the thermochem…
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| 关 键 词： | Nickel chloride L α Histidine Complex Formation reaction Thermokinetics |
A Thermochemical Study on Complex Nickel(Ⅱ) L-α-Histidine |
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| GAO Sheng-li,CHEN San-ping,HU Rong-zu,SHI Qi-zhen. A Thermochemical Study on Complex Nickel(Ⅱ) L-α-Histidine[J]. Chemical Research in Chinese University, 2003, 19(2) |
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| Authors: | GAO Sheng-li CHEN San-ping HU Rong-zu SHI Qi-zhen |
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| 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)2+2(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. |
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| Keywords: | Nickel chloride Complex Formation reaction Thermokinetics |
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