Third derivative thermodynamic quantities of aqueous tetrahydrofuran at 25 °C

Third derivative thermodynamic quantities of aqueous tetrahydrofuran at 25 °C
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25 °C 时四氢呋喃水溶液的三阶导数热力学量

DOI:
10.1016/j.molliq.2014.11.029
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发表时间:
2015
影响因子:
6
通讯作者:
Yoshikata Koga
Yoshikata Koga
中科院分区:
化学2区
文献类型:
--
作者:
Koh Yoshida;Peter Westh;Akira Inaba;Motohiro Nakano;Yoshikata Koga

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我们测量了25° C下四氢呋喃(THF)、HETHF和SETHF在THF-H2O中的过量化学势μ ETHF、过量偏摩尔焓和熵。使用G的这些二阶导数,我们以图形方式评估了三阶导数量;双折射、熵THF-THF相互作用函数、H E THF-THF和S E THF-THF。使用文献密度数据,还评估了THF对THF的过量偏摩尔体积V E THF-THF的影响。此外,我们还直接测定了THF的偏摩尔熵-体积交叉涨落密度δ T H F S V,另一个三阶导数量。通过比较本发明的THF-H2O与我们认为是疏水一元醇系列中最弱的成员甲醇(ME)之间这些三阶导数量的摩尔分数依赖模式,我们认为,尽管其具有较大的非极性表面积,THF与ME具有同样的两亲性,两者之间的定量表征和差异应等待1-甲基吡咯烷酮的表征。我们开发的丙醇探测方法[PCCP 15(2013)14548-14565]。
We measured the excess chemical potential, μ Ε THF, the excess partial molar enthalpy and entropy of solute tetrahydrofuran (THF), H E THF and S E THF, in THF–H 2 O at 25° C. Using these second derivatives of G, we graphically evaluated the third derivative quantities; the enthalpic, entropic THF–THF interaction functions, H E THF–THF, and S E THF–THF. Using the literature density data, the effect of THF on the excess partial molar volume of THF, V E THF–THF, was also evaluated. Furthermore, we directly determined the partial molar entropy-volume cross fluctuation density of THF, δ T H F S V, another third derivative quantity. By comparing the mole fraction dependence patterns of these third derivative quantities between the present THF–H 2 O with what we thought to be the weakest member of a hydrophobic mono-ol series, methanol (ME), we suggest that in spite of its larger non-polar surface area, THF is as amphiphilic as ME. A quantitative characterization and any difference between THF and ME ought to wait for characterization by the 1-propanol probing methodology developed by us [PCCP 15 (2013) 14548-14565].
DOI: 10.1021/jp0312722
发表时间: 2004-04
影响因子: 2.9
作者:
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DOI: 10.1007/s10953-011-9715-1
发表时间: 2011
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发表时间: 1996
影响因子: 1.1
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DOI: 10.1021/j100163a041
发表时间: 1991
期刊: The Journal of Physical Chemistry
影响因子: --
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