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题名: Low-temperature heat capacity and thermodynamic properties of crystalline 2-chloro-5-trichloromethylpyridine
作者: Kong, LG;  Tan, ZC;  Zhang, W;  Xu, F;  Wang, MH;  Bao, XH;  Zhang, T;  Sun, LX
刊名: CHEMICAL PAPERS-CHEMICKE ZVESTI
发表日期: 2004
卷: 58, 期:5, 页:295-298
收录类别: SCI
文章类型: Article
项目归属: 1504,502,1501
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The low-temperature heat capacities of 2-chloro-5-trichloromethylpyridine were measured with a high-precision automated adiabatic calorimeter in the temperature range from 80 K to 345 K. A solid-liquid phase transition was observed from 318.57 K to 327.44 K with peak temperature 324.67 K; the molar enthalpy and entropy of phase transition, DeltaH(m) and DeltaS(m), were determined to be 14.50 +/-0.02 kJ mol(-1) and 44.66 +/- 0.07 kJ K-1 mol(-1), respectively. The thermal stability was investigated through thermogravimetric analysis (TG). The TG and DTG results reveal that 2-chloro-5-trichloromethylpyridine starts to lose mass at 332 K due to evaporation and completely changes into vapour at 483 K under the present experimental conditions.
关键词[WOS]: INTERNAL ROTATION ;  METHYLPYRIDINES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000226369100001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81959
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Kong, LG,Tan, ZC,Zhang, W,et al. Low-temperature heat capacity and thermodynamic properties of crystalline 2-chloro-5-trichloromethylpyridine[J]. CHEMICAL PAPERS-CHEMICKE ZVESTI,2004,58(5):295-298.
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