在液体氨中的富勒化离子周围形成巨大的溶解
Christopher A Howard1, Helen Thompson, Jonathan C Wasse
1London Centre for Nanotechnology, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK.
Journal of the American Chemical Society
|October 14, 2004
概括
我们使用中子衍射研究了氨溶液中的富勒化物C605-离子. 氨在离子周围形成两个密集的外,使溶剂分离的离子度高.
科学领域:
- 化学 化学 化学
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 富勒化离子在材料科学中很重要.
- 了解溶解结构是控制其属性的关键.
研究的目的:
- 为了研究氨溶液中富勒化物C605-离子的溶解结构.
- 为了阐明氨分子和富勒化离子之间的相互作用.
主要方法:
- 用中子衍射测量了溶解结构.
- 分析的重点是氨分子在C605离子周围的排列.
主要成果:
- 观察到一个强大的溶解结构,在离子周围有两个密集的氨外.
- 氨基分子表现出一种特定的结定向,指向阳离子的中心.
- 在氨外内保持了轴向结合.
结论:
- 观察到的溶解结构促进了溶剂分离的富勒化离子的高度.
- 这种详细的结构理解对于设计涉及富勒里德的新材料和工艺至关重要.
更多相关视频
相关概念视频
01:24Van der Waals Interactions
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.Polar molecules have a partial positive charge on one end and a partial negative charge on the other end of the molecule,...
02:54Lewis Structures of Molecular Compounds and Polyatomic Ions
To draw Lewis structures for complicated molecules and molecular ions, it is helpful to follow a step-by-step procedure as outlined:
03:37Molecular Shape and Polarity
Dipole Moment of a Molecule
02:45Valence Bond Theory
Overview of Valence Bond Theory
03:13Intermolecular Forces
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 bonds, and dispersion...
03:13Intermolecular Forces
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 bonds, and dispersion...