| 硝酸锌与四种α-氨基酸配合物的恒容燃烧能测定(英文) |
| Determination of Constant-Volume Combustion Energy for the Complexes of Zinc Nitrate with Four Amino Acids |
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| 摘要: |
| 关键词: 硝酸锌 α-氨基酸 配合物 标准生成焓 |
| 基金项目: |
| Abstract: Ten solid complexes of zinc nitrate with L-α-leucine(Leu)， L-α-valine(Val)， L-α-tryptophan(Try) and L-α-threonine(Thr) were prepared in water. The compositions of these complexes are determined by chemical analysis and elemental analysis， which are identified as Zn(Leu)(NO3)2·2H2O(A)， Zn(Leu)2(NO3)2·H2O(B)， Zn(Val)(NO3)2·2H2O(C)， Zn(Val)2(NO3)2·H2O(D)， Zn(Val)3(NO3)2·H2O(E)， Zn(Try)(NO3)2·2H2O(F)， Zn(Try)2(NO3)2·H2O(G)， Zn(Thr)(NO3)2·2H2O(H)， Zn(Thr)2(NO3)2·H2O(I) and Zn(Thr)3(NO3)·H2O(J). The constant-volume combustion energies of the complexes， ΔcU(complex)， were determined by a precise rotating bomb calorimeter at 298.15K. Standard enthalpies of combustion，ΔcHm?(complex， s， 298.15K)， and standard enthalpies of formation， ΔfHm?(complex，s，298.15K) for these complexes were calculated as (4523.22±2.08)， (7208.86±4.28)， (3442.21±1.85)， (5971.21±3.32)， (9007.26±4.24)， (5802.35±2.14)， (10891.58±3.01)， (2147.40±1.28)， (4120.83±0.99)， (6444.68±3.85)kJ·mol-1 and (615.67±2.27)， (1863.16±4.60)， (1017.34±2.00)， (1742.93±3.61)， (2245.70±4.73)， (1161.18±2.61)， (1829.71±4.20)， (1632.82±1.43)， (1885.55±1.50)， (2770.25±4.21)kJ·mol-1， respectively. |
| Keywords: zinc nitrate α-amino acid complex standard enthalpy of formation |
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| 谢钢,杨旭武,陈三平,高胜利,史启祯.硝酸锌与四种α-氨基酸配合物的恒容燃烧能测定(英文)[J].无机化学学报,2003,19(3):278-282. |
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