在两个π轨道之间有 σ-结合的Zwitterionic无机价同位素
1Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore.
Journal of the American Chemical Society
|September 13, 2018
概括
研究人员分离了的新型zwitterionic模拟物,其中包括B4N2环与外置电子. 这一发现为了解无机化合物的化学键和电子结构开辟了新的途径.
科学领域:
- 无机化学
- 材料科学
- 理论化学
背景情况:
- (C6H6) 有许多理论异构体,但实验证实只有四种具有局部C-C键的非离子价值异构体.
- 在无机环系统中探索新型的结合模式和电子结构仍然是化学中的一个重大挑战.
研究的目的:
- 合成和表征一种假设的基价值同位素.
- 研究一种新型无机环系统中的电子移位和结合特性.
主要方法:
- 一个diazatetraborabenzene模拟的分离和表征.
- 进行光谱分析以确认结构和电子特性.
- 用皇冠以太进行处理以形成激素离子对.
主要成果:
- 一个B4N2环系统的成功分离,类似于一个zwitterionic同位素.
- 在四个原子上移位的两个电子的观测,由 σ 键相互作用产生的.
- 形成具有热填充三重体特性的配合激素离子对.
结论:
- 这项研究提供了第一个对的zwitterionic价值同位素模拟的实验证据,扩大了无机环系统的已知化学结构.
- 这些发现表明-化合物中的新型电子移位和结合机制.
- 由此产生的激素离子对表现出独特的磁性和电子性质, 表明在材料科学中的潜在应用.
相关概念视频
Valence Bond Theory
50.3K
Overview of Valence Bond Theory
50.3K
Valence Bond Theory
11.3K
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...
11.3K
Valence Bond Theory and Hybridized Orbitals
29.6K
According to valence bond theory, a covalent bond results when: (1) an orbital on one atom overlaps an orbital on a second atom, and (2) the single electrons in each orbital combine to form an electron pair. The strength of a covalent bond depends on the extent of overlap of the orbitals involved. Maximum overlap is possible when the orbitals overlap on a direct line between the two nuclei.
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...
A σ bond (single bond in a Lewis structure) is a covalent bond in which the electron density is...
29.6K
Molecular Orbital Theory II
27.5K
Molecular Orbital Energy Diagrams
27.5K
Hybridization of Atomic Orbitals I
67.6K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
67.6K
Hybridization of Atomic Orbitals II
49.2K
sp3d and sp3d 2 Hybridization
49.2K


