| Thermochemistry on Coordination Behavior of Neodymium Chloride Hydrate with Diethylammonium Diethyldithiocarbamate |
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| 作者姓名： | 任宜霞 焦宝娟 陈三平 高胜利 赵凤起 胡荣祖 史启祯 |
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| 作者单位： | [1]DepartmentofChemistry,ShaanxiKeyLaboratoryofPhysico-InorganicChemistry,NorthwestUniversity,Xi＇an710069,China [2]Xi＇anModernChemistryResearchInstitute,Xi＇an710065,China [3]DepartmentofChemistry,ShaanxiKeyLaboratoryofPhysico-InorganicChemistry,NorthwestUniversity,Xi＇an710069,China |
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| 基金项目： | 国家自然科学基金，陕西省教育厅资助项目 |
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| 摘 要： | The complex of neodymium chloride lower hydrate with diethylammonium diethyldithiocarbamate (D-DDC) was synthesized conveniently in absolute alcohol and dry N2 atmosphere. The title complex was identified as Et2NH2 Nd(S2CNEt2)4] by chemical and elemental analyses and the bonding characteristics of which was characterized by IR. The enthalpies of solution of neodymium chloride hydrate and D-DDC in absolute alcohol at 298.15 K and the enthalpies change of liquid-phase reaction of formation for Et2NH2 Nd (S2CNEt2)4] at different temperatures were determined by microealorimetry. On the basis of experimental and calculated results, three thermodynamic parameters (the activation enthalpy, the activation entropy and the activation free energy), the rate constant and three kinetic parameters (the apparent activation energy, the pre-exponential constant and the reaction order) of liquid-phase reaction of formation were obtained.The enthalpy change of the solid-phase title reaction at 298.15 K was calculated by a thermochemical cycle.
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| 关 键 词： | 荧光材料 发光性能 稀土 热化学 配合物 钕 物理化学 |
Thermochemistry on Coordination Behavior of Neodymium Chloride Hydrate with Diethylammonium Diethyldithiocarbamate |
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| Ren Yixia ,Jiao Baojuan ,Chen Sanping,Gao Shengli.Thermochemistry on Coordination Behavior of Neodymium Chloride Hydrate with Diethylammonium Diethyldithiocarbamate[J].Journal of Rare Earths,2004,22(2):210-214. |
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| Authors: | Ren Yixia Jiao Baojuan Chen Sanping Gao Shengli |
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| Affiliation: | Ren Yixia ~1,Jiao Baojuan ~1,Chen Sanping~1,Gao Shengli ~ |
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| Abstract: | The complex of neodymium chloride lower hydrate with diethylammonium diethyldithiocarbamate(D-DDC)was synthesized conveniently in absolute alcohol and dry N2 atmosphere.The title complex was identified as Et2NH2Nd(S2CNEt2)4] by chemical and elemental analyses and the bonding characteristics of which was characterized by IR.The enthalpies of solution of neodymium chloride hydrate and D-DDC in absolute alcohol at 298.15 K and the enthalpies change of liquid-phase reaction of formation for Et2NH2Nd(S2CNEt2)4] at different temperatures were determined by microcalorimetry.On the basis of experimental and calculated results,three thermodynamic parameters(the activation enthalpy,the activation entropy and the activation free energy),the rate constant and three kinetic parameters(the apparent activation energy,the pre-exponential constant and the reaction order)of liquid-phase reaction of formation were obtained.The enthalpy change of the solid-phase title reaction at 298.15 K was calculated by a thermochemical cycle. |
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| Keywords: | physical chemistry neodymium chloride hydrate diethylammonium dithyldithiocarbamate (D-DDC) microcalorimetric method thermochemistry rare earths |
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