中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Low-Temperature Heat Capacities and Thermochemistry on the Complex of Samarium Perchlorate with L-alpha-Valine Acid: [Sm-2(L-alpha-Val)(4)(H2O)(8)](ClO4)(6)
作者: Yang Wei-Wei1;  Di You-Ying1;  Kong Yu-Xia1;  Tan Zhi-Cheng2
关键词: complex of samarium perchlorate with L-alpha-Valine acid ;  adiabatic calorimetry ;  low-temperature heat capacity ;  isoperibol solution-reaction calorimetry ;  standard molar enthalpy of formation
刊名: CHINESE JOURNAL OF INORGANIC CHEMISTRY
发表日期: 2010-07-10
卷: 26, 期:7, 页:1252-1258
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Inorganic & Nuclear
研究领域[WOS]: Chemistry
英文摘要: A complex of samrium perchlorate with L-alpha-Valine acid, [Sm-2(L-alpha-Val)(4)(H2O)(8)](ClO4)(6), was synthesized by the reaction of samarium perchlorate and L-alpha-Valine acid in distilled water. The title complex was characterized by chemical analysis, elemental analysis, FTIR and TG/DTG. Low-temperature heat capacities were measured by a precision automated adiabatic calorimeter over the temperature range from 78 to 371 K. A polynomial equation of heat capacities as a function of the temperature was fitted by the least-squares method. Based on the fitted polynomial, the smoothed heat capacities and thermodynamic functions of the complex relative to the standard reference temperature 298.15 K were calculated with the interval of 5 K. The possible mechanism about thermal decomposition of the complex was deduced on the basis of the TG/DTG analysis. A reasonable thermochemical cycle was designed on the basis of the Hess law, and the standard molar enthalpies of dissolution for the reactants and products of the designed reaction in the selected solvents were measured by an isoperibol solutionreaction calorimeter, respectively. In addition, the enthalpy change of the reaction was determined to be Delta H-r(m)circle minus = (24.83 +/- 0.85) kJ.mol(-1) from the data of the above standard molar enthalpies of dissolution. Eventually, the standard molar enthalpy of formation of the complex was derived to be -(8 010.01 +/- 3.90) kJ.mol(-1) by the combination of the enthalpy change of the reaction with other auxiliary thermodynamic quantities.
关键词[WOS]: NICOTINATE
语种: 英语
WOS记录号: WOS:000280183900021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141897
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Shandong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Yang Wei-Wei,Di You-Ying,Kong Yu-Xia,et al. Low-Temperature Heat Capacities and Thermochemistry on the Complex of Samarium Perchlorate with L-alpha-Valine Acid: [Sm-2(L-alpha-Val)(4)(H2O)(8)](ClO4)(6)[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2010,26(7):1252-1258.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Yang Wei-Wei]'s Articles
 [Di You-Ying]'s Articles
 [Kong Yu-Xia]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Yang Wei-Wei]‘s Articles
 [Di You-Ying]‘s Articles
 [Kong Yu-Xia]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace