Low temperature heat capacities and standard molar enthalpy of formation of the coordination compound Zn(His)(NO3)(2)center dot 1/2H(2)O(s) (His = L-alpha- Histidine)
文献类型：期刊论文
| 作者 | Yang, Wei-Wei1; Di, You-Ying1; Kong, Yu-Xia1; Tan, Zhi-Cheng2; Gao, Sheng-Li3 |
| 刊名 | indian journal of chemistry section a-inorganic bio-inorganic physical theoretical & analytical chemistry
 |
| 出版日期 | 2010-03-10 |
| 卷号 | 49期号:3页码:295-301 |
| 关键词 | Adiabatic calorimetry Heat capacity Standard molar enthalpy of formation Zinc Amino acids Isoperibol solution-reaction calorimetry |
| 英文摘要 | low temperature heat capacities of the solid coordination compound zn(his)(no3)(2)center dot 1/2h(2)o(s) have been measured by a precision automated adiabatic calorimeter over the temperature range 78 - 371 k. the initial dehydration temperature of the coordination compound is determined to be, t-d = 326.75 k, by analysis of the heat-capacity curve. the experimental values of the molar heat capacities in the temperature region have been fitted to a polynomal equation of heat capacities with the reduced temperature (x), [x = f (t)], by least squares method. enthalpies of dissolution of {znso4 center dot 7h(2)o(s) + 2nano(3)(s) l-his(s)} and {zn(his)(no3)(2)center dot 1/2h(2)o(s) + na2so4(s)} in 100 ml of 2 mol dm(-3) hcl(aq) at t = 298.15 k have been determined to be delta h-4(m,1)0 = 79.830 +/- 0.058 kj mol(-1) and delta h-d(m,2)0 = 51.146 +/- 0:041. kjmol(-1) respectively, with a isoperibol solution-reaction calorimeter. the standard molar enthalpy of formation of the compound is determined as delta h-f(m)0(zn(his)(no3)(2)center dot 1/2h(2)o, s, 298.15 k) = - 1207.19 +/- 2.82 kj mol(-1) from the enthalpies of dissolution of the reactants and products and other thermodynamic data by a hess thermochemical cycle. furthermore, the reliability of the hess thermochemical cycle has been verified by comparing uv/vis spectra and the refractive indices of solutions obtained from dissolution of the {znsp4 center dot 7h(2)o(s) + 2nano(3)(s) + l-his(s)} and from dissolution of the {zn(his)(no3)(2)center dot 1/2h(2)o(s) + na2so4(s)} mixtures. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | zinc-sulfate ; amino-acids ; calorimeter |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275972000003 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142014]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China 3.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Wei-Wei,Di, You-Ying,Kong, Yu-Xia,et al. Low temperature heat capacities and standard molar enthalpy of formation of the coordination compound Zn(His)(NO3)(2)center dot 1/2H(2)O(s) (His = L-alpha- Histidine)[J]. indian journal of chemistry section a-inorganic bio-inorganic physical theoretical & analytical chemistry,2010,49(3):295-301. |
| APA | Yang, Wei-Wei,Di, You-Ying,Kong, Yu-Xia,Tan, Zhi-Cheng,&Gao, Sheng-Li.(2010).Low temperature heat capacities and standard molar enthalpy of formation of the coordination compound Zn(His)(NO3)(2)center dot 1/2H(2)O(s) (His = L-alpha- Histidine).indian journal of chemistry section a-inorganic bio-inorganic physical theoretical & analytical chemistry,49(3),295-301. |
| MLA | Yang, Wei-Wei,et al."Low temperature heat capacities and standard molar enthalpy of formation of the coordination compound Zn(His)(NO3)(2)center dot 1/2H(2)O(s) (His = L-alpha- Histidine)".indian journal of chemistry section a-inorganic bio-inorganic physical theoretical & analytical chemistry 49.3(2010):295-301. |
入库方式： OAI收割
来源：大连化学物理研究所
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