Multinuclear NMR spectroscopy for differentiation of molecular configurations and solvent properties between acetone and dimethyl sulfoxide
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- 作者：Yuan-Chun Wena ; Hsiao-Ching Kuoa ; Hsi-Wei Jiaa ; b ; cycunmrlab@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Liquid state NMR spectroscopy ; Acetone ; Dimethyl sulfoxide (DMSO) ; 17O NMR spectroscopy ; Trigonal pyramidal-like molecule ; Highly polarized S&ndash ; O single bond
- 刊名：Journal of Molecular Structure
- 出版年：2016
- 出版时间：5 April 2016
- 年：2016
- 卷：1109
- 期：Complete
- 页码：154-160
- 全文大小：565 K
文摘
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The 17O/13C/1H NMR data show single-bond-like character between sulfur and oxygen atoms of the DMSO molecule.
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In DMSO, the sulfur atom is polarized and positively charged and the oxygen atom is polarized and negatively charged.
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DMSO has good ionic salt solubilities when oxygen atom is close to the cations and the sulfur atom is close to the anions.
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DMSO has an extremely high boiling point, dipole moment, dielectric constant, viscosity, and donor number.
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DMSO has a trigonal pyramidal-like molecular shape.