酒精中的离子:异醇与六化异醇
Nozomi Yoneda1, Haruka Iyama1, Takashi Nagata2
1Graduate School of Energy Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan.
The journal of physical chemistry letters
|February 5, 2024
概括
酒精可以调节离子的反应性,但人们对相互作用的了解很少. 这项研究表明,醇与化物形成更强的键,影响离子协会和系统性质.
科学领域:
- 化学 化学 化学
- 物理化学 物理化学
- 材料科学 材料科学 材料科学
背景情况:
- 酒精被探索为键捐赠者,以适度反应的化物离子.
- 对酒精-OH和F-相互作用的有限理解阻碍了实际应用.
研究的目的:
- 对CsF-2-propanol和CsF-hexafluoro-2-propanol系统的热,结构和物理性能进行比较研究.
- 为了阐明醇基团对酒精-化物相互作用的影响.
主要方法:
- 频谱学分析进行分析.
- 酒精活性系数测量 酒精活性系数测量
- 理论上的计算理论上的计算.
- 扩散系数和离子导电性测量
主要成果:
- 尽管度相似,但CsF-2-propanol和CsF-hexafluoro-2-propanol系统显示出不同的相位图.
- 醇系统表现出更强的OH···F-相互作用.
- 离子联结状态在两个系统之间有很大的差异.
结论:
- 醇基组显著增强了酒精-化物相互作用.
- 离子协会的差异解释了物理性质的观察到的变化.
- 结果为化学应用的酒精化物系统提供了关键的见解.
相关概念视频
Solvating Effects
7.5K
An understanding of the solvating effect helps rationalize the relation between solvation and acidity of the compound. In addition, this also explains the relative stability of conjugate bases for compounds with different pKa values. This lesson details, in-depth, the principle of solvating effects. The strength of an acid and the stability of its corresponding conjugate base are determined using pKa values. This observed relationship is a consequence of solvation, which is the interaction...
7.5K
Alkyl Halides
16.6K
Structural Properties
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
16.6K
Molecular Shape and Polarity
60.5K
Dipole Moment of a Molecule
60.5K
Intermolecular Forces
58.3K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
58.3K
Physical Properties of Alcohols and Phenols
14.4K
Alcohols are organic compounds in which a hydroxy group is attached to a saturated carbon. Phenols are a class of alcohols containing a hydroxy group attached to an aromatic ring. The physical properties of the alcohols and phenols are influenced by hydrogen bonding due to the oxygen–hydrogen dipole in the hydroxy functional group and dispersion forces between alkyl or aryl regions of alcohol and phenol molecules.
Alcohols possess a higher boiling point than aliphatic hydrocarbons of...
Alcohols possess a higher boiling point than aliphatic hydrocarbons of...
14.4K
Halogens
18.5K
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group.
18.5K


