三硫离子的三个盐的晶体结构
Rylan Artis1, Waylan Callaway1, Elizabeth Heyward1
1Department of Biochemistry Chemistry and Physics Georgia Southern University, 11935 Abercorn Street Savannah GA 31419 USA.
Acta crystallographica. Section E, Crystallographic communications
|February 10, 2025
概括
三聚硫化物与酸发生反应,形成晶体盐. 在这些新型硫化合物中,X射线衍射揭示了扭曲的三角形-金字塔硫体几何和基于的分子间接触.
科学领域:
- 固态化学 固态化学
- 晶体学 晶体学是指结晶学.
- 超分子化学 超分子化学
背景情况:
- 三聚硫化物 ([TPS][Cl]) 是合成硫盐的前体.
- 了解硫盐的结构和分子间特性对于它们的应用至关重要.
- 之前的研究已经探索了各种硫衍生物,但具体盐的详细结构特征正在进行中.
研究的目的:
- 为了合成和结构性地描述新的三硫盐 ([TPS][I3],[TPS][ClO4,和[TPS][PF6]).
- 研究这些盐在固态中的几何和包装安排.
- 用赫什菲尔德表面分析分析控制晶体结构的分子间相互作用.
主要方法:
- 通过[TPS][Cl]与甲醇中的相应酸的反应合成三硫盐.
- 单晶X射线衍射用于合成盐的详细结构确定.
- 希尔什菲尔德表面分析以量化和可视化分子间相互作用.
主要成果:
- [TPS][I3],[TPS][ClO4]和[TPS][PF6]的结晶产物已成功获得.
- X射线衍射揭示了所有盐的三硫离子中硫原子周围扭曲的三角形-金字塔形几何.
- 晶体结构的特点是基于的分子间接触和离子特异性相互作用 (IH,OH,FH),导致带状或链状排列.
结论:
- 该研究成功合成和表征了三种新的三硫盐,提供了详细的结构见解.
- 一致的扭曲的三角形-金字塔形状几何和特定的分子间相互作用突出了这些硫盐的可预测的结构行为.
- 这些发现有助于理解基于硫的材料的晶体工程原理.
相关概念视频
02:42Ionic Crystal Structures
14.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
14.1K
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
41.2K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
41.2K
02:54Ions as Acids and Bases
23.3K
Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
23.3K
02:48Ionic Bonding and Electron Transfer
41.1K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
41.1K
02:58Crystal Field Theory - Octahedral Complexes
26.1K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
26.1K
02:42Valence Bond Theory
8.4K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.4K