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通过声学测量得到的二聚常数：苯、环己胺和苯胺在环己烷中的溶液

Dimerization Constants from Acoustic Measurements: Solutions of Benzene, Cyclohexylamine and Aniline in Cyclohexane.

作者信息

Burakowski Andrzej, Gliński Jacek

机构信息

Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.

出版信息

J Solution Chem. 2017;46(7):1501-1513. doi: 10.1007/s10953-017-0656-1. Epub 2017 Jul 18.

DOI:10.1007/s10953-017-0656-1
PMID:28798501
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5527082/
Abstract

A model assuming that the formation of dimers determines the acoustic properties of liquid mixtures, in the inert solvent cyclohexane, was applied to describe the observed dependences of sound speed on composition. The dimerization constants were estimated. The results allow one to propose that the solutes tend to form associates larger than dimers in concentrated solutions, while in dilute systems solute-solvent interactions play an important role.

摘要

一个假设二聚体的形成决定液体混合物声学性质的模型，应用于惰性溶剂环己烷中，用以描述观察到的声速随组成的变化关系。估算了二聚化常数。结果表明，在浓溶液中溶质倾向于形成大于二聚体的缔合物，而在稀溶液中溶质 - 溶剂相互作用起重要作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/f1e2b93858c1/10953_2017_656_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/3fbe8a3749bb/10953_2017_656_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/0574487f7dc2/10953_2017_656_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/f1e2b93858c1/10953_2017_656_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/3fbe8a3749bb/10953_2017_656_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/0574487f7dc2/10953_2017_656_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7925/5527082/f1e2b93858c1/10953_2017_656_Fig3_HTML.jpg

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本文引用的文献

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Aliphatic-aromatic stacking interactions in cyclohexane-benzene are stronger than aromatic-aromatic interaction in the benzene dimer.环己烷 - 苯中的脂肪族 - 芳香族堆积相互作用比苯二聚体中的芳香族 - 芳香族相互作用更强。
Phys Chem Chem Phys. 2016 Sep 21;18(37):25791-25795. doi: 10.1039/c6cp03734h.
2
Determination of the conditional dimerization constants from the sound velocity data in binary liquid mixtures containing an associating solute and a nonassociating solvent.
J Chem Phys. 2005 Aug 15;123(7):074507. doi: 10.1063/1.2000240.