Jove
Visualize
联系我们

相关概念视频

Valence Bond Theory02:42

Valence 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
Formation of Complex Ions03:45

Formation of Complex Ions

23.1K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.1K
Colors and Magnetism03:02

Colors and Magnetism

11.4K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.4K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

41.1K
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,...
41.1K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

40.4K
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. 
40.4K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

31.6K
sp3d and sp3d 2 Hybridization
31.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Unravelling the key factors governing O<sub>2</sub> evolution upon charging a reversible LiOH-based nonaqueous Li | |O<sub>2</sub> battery.

Nature communications·2026
Same author

Diuranacyclobutadiene: Evidence of Electron Delocalization in the Actinide-Carbon Ring.

Journal of the American Chemical Society·2026
Same author

Tetraphenylborate-based anionic metal-organic framework as an efficient single-ion conductor for solid-state sodium batteries.

Chemical science·2026
Same author

High-Quality Nanopatterning of Oxide Interfaces Using Transferred Gold Masks.

ACS applied materials & interfaces·2026
Same author

Boosting Solid-Solid Conversion Kinetics via Electron-Pinned Interface Engineering for High-Energy-Density Li-S Batteries.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Identifying Facet-Dependent CO<sub>2</sub> Adsorption Sites on Anatase TiO<sub>2</sub> Nanocrystals by Solid-State NMR Spectroscopy.

The journal of physical chemistry letters·2026
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关实验视频

Updated: May 22, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.6K

可以分离的零价值的Ditin{0}和Diplumbum{0}复合物.

Jinghang Shen1, Zhengting Zhang1, Xiaokang Ke1

  • 1State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.

Nature communications
|March 17, 2025
PubMed
概括

这项研究报告了和的罕见二元原子零价值复合物的分离. 这些新型主组复合物被特定的连接体碎片稳定,扩大了已知的低价值主组元素的化学结构.

更多相关视频

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

13.9K
The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

8.5K

相关实验视频

Last Updated: May 22, 2025

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.6K
Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

13.9K
The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

8.5K

科学领域:

  • 无机化学 无机化学 有机化学
  • 主群 化学 化学
  • 有机金属化学 有机金属化学

背景情况:

  • 二原子零价值复合体在主要组化学中非常罕见.
  • 之前的例子是完全由碳烯或烯连接物稳定.
  • 这突显了我们对低价值,多原子主群物种稳定性的理解上的差距.

研究的目的:

  • 合成和表征 (Sn) 和 (Pb) 的新型二元原子零价值复合物.
  • 通过使用重的连接体框架,研究这些二元体物种的稳定性.
  • 扩大已知的零价值主要组元素化合物的范围.

主要方法:

  • 合成涉及三盐N{CH2CH2NLiPiPr2}3与SnCl2的合成,然后用KC8.8进行减少.
  • 基复合物的分离和表征,包括一个Sn3链和一个Sn4链,具有二原子Sn{0}-Sn{0}单位.
  • 锡复合物与PbI2和KC8的反应,形成含复合物,具有二原子Pb(0) - Pb(0) 单位.

主要成果:

  • 在 Sn4 链复合体内成功分离了二原子 Sn(0) -Sn(0) 物种.
  • 在一个新的重型主群复合体中隔离二元体Pb(0) -Pb(0) 种类.
  • 计算研究证实了二原子E(0) -E(0) 单元的存在和电子结构.

结论:

  • 本文介绍了由[N{CH2CH2NPiPr2}3Sn]片段稳定了和的二元原子零价值主群复合体的第一个例子.
  • 这些发现表明了稳定低价值多原子主要组元素的新策略.
  • 这项研究在主要组化学和低价值元素稳定领域取得了重大进展.