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Low-temperature heat capacity and thermodynamic properties of [Re-2(Ile)(4)(H2O)(8)](ClO4)(6) (Re = Nd, Er, Ile = isoleucine)
Lan, XZ; Tan, ZC; Liu, BP; Nan, ZD; Sun, LX; Xu, F
KeywordRare-earth Complex Isoleucine [Nd-2(Ile)(4)(H2o)(8)](Clo4)(6) [Er-2(Ile)(4)(H2o)(8)](Clo4)(6) Heat Capacity Thermal Stability Tg Analysis
Source PublicationTHERMOCHIMICA ACTA
2003-06-03
DOI10.1016/S0040-6031(02)00573-7
Volume402Issue:1-2Pages:183-191
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Analytical ; Chemistry, Physical
WOS Research AreaChemistry
AbstractThe heat capacities of two kinds of rare-earth element solid complexes with isoleucine [Re-2(Ile)(4)(H2O)(8)](ClO4)(6) (where Re = Nd, Er, and Ile = isoleucine) have been measured by an automatic adiabatic calorimeter in the temperature range from 80 to 370 K. Two solid-solid phase transitions were found from the C-p curve of Nd formed complex in the range of 165-175 K with a peak temperature of 167.88 K and in the range of 195-210 K with a peak temperature of 202.13 K. The corresponding molar enthalpies of these phase transitions were determined to be 404.61 J mol(-1) and 2.955 kJ mol(-1), respectively. One solid-solid phase transition was found for the Er formed complex in the range of 190-205 K with a peak temperature of 193.42 K. The corresponding molar enthalpy of this transition was 14.11 kJ mol(-1). Smooth heat capacities and thermodynamic functions relative to the standard state (298.15 K), H-T - H-298.15, S-T - S-298.15 and -[G(T) - G(298.15)], of the two compounds, were calculated on basis of experimental heat capacity data. Possible mechanisms of thermal decompositions for the pair of compounds were suggested according to the thermogravimetric (TG) analysis. (C) 2002 Elsevier Science B.V. All rights reserved.
Language英语
WOS IDWOS:000183516100020
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/138376
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Lan, XZ,Tan, ZC,Liu, BP,et al. Low-temperature heat capacity and thermodynamic properties of [Re-2(Ile)(4)(H2O)(8)](ClO4)(6) (Re = Nd, Er, Ile = isoleucine)[J]. THERMOCHIMICA ACTA,2003,402(1-2):183-191.
APA Lan, XZ,Tan, ZC,Liu, BP,Nan, ZD,Sun, LX,&Xu, F.(2003).Low-temperature heat capacity and thermodynamic properties of [Re-2(Ile)(4)(H2O)(8)](ClO4)(6) (Re = Nd, Er, Ile = isoleucine).THERMOCHIMICA ACTA,402(1-2),183-191.
MLA Lan, XZ,et al."Low-temperature heat capacity and thermodynamic properties of [Re-2(Ile)(4)(H2O)(8)](ClO4)(6) (Re = Nd, Er, Ile = isoleucine)".THERMOCHIMICA ACTA 402.1-2(2003):183-191.
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