Jove
Visualize
联系我们
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

相关概念视频

Valence Bond Theory02:42

Valence Bond Theory

8.5K
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...
8.5K
Exceptions to the Octet Rule02:55

Exceptions to the Octet Rule

27.7K
Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
27.7K
Structure of Amines01:19

Structure of Amines

2.5K
The hybridized nitrogen atom in amines possesses a lone pair of electrons and is bound to three substituents with a bond angle of around 108°, which is less than the tetrahedral angle of 109.5°. However, the C–N–H bond angle is slightly larger at 112°, with a carbon–nitrogen bond length of 147 pm. This carbon–nitrogen bond length of of amines is longer than the carbon–oxygen bond of alcohols (143 pm) but shorter than alkanes’...
2.5K
Chirality at Nitrogen, Phosphorus, and Sulfur02:30

Chirality at Nitrogen, Phosphorus, and Sulfur

5.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K
Lewis Structures of Molecular Compounds and Polyatomic Ions02:54

Lewis Structures of Molecular Compounds and Polyatomic Ions

34.5K
To draw Lewis structures for complicated molecules and molecular ions, it is helpful to follow a step-by-step procedure as outlined:
34.5K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

26.2K
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...
26.2K

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

Enzymatically Hydrolyzed Porcine Blood Meal as a Potential Iron Source in Canine Diets: Effects on Digestibility and Antioxidant Properties.

Animals : an open access journal from MDPI·2026
Same author

Impact of xylose-mediated Maillard reaction on antioxidant capacity and digestibility of alcalase-hydrolyzed porcine liver during simulated canine digestion.

Food science of animal resources·2026
Same author

Elucidation of flavor codes in citrus fruit peels using electronic sensors, LC-MS/MS, and GC-MS combined with GC-O.

Food chemistry: X·2026
Same author

<math><semantics><msub><mover><mi>V</mi> <mo>̇</mo></mover> <msub><mi>O</mi> <mrow><mn>2</mn> <mi>max</mi></mrow></msub></msub> <annotation>$\dot V_{\rm{O_{2max}}}$</annotation></semantics></math> -based all-out aerobic exercise attenuates hexosamine biosynthetic pathway activity: Metabolomic insights in mice model.

Experimental physiology·2026
Same author

Direct Observation of Conduction Mechanism in Te-Based Selector-Only Memory via Low-Frequency Noise Characterization.

Nano letters·2026
Same author

Overcoming the Critical Thickness Limit: Interfacial Control of Crystallization Pathways in Atomic-Scale Dielectric Thin Films.

ACS nano·2026

相关实验视频

Updated: Jun 8, 2025

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films
13:05

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films

Published on: May 11, 2019

7.5K

在III组化物中由化合物驱动的空置集群.

Eui-Cheol Shin1, Youngho Kang2, Sang Ho Jeon1

  • 1Samsung Display Co., LTD., Yongin-si 17113, Republic of Korea.

ACS applied materials & interfaces
|November 5, 2024
PubMed
概括
此摘要是机器生成的。

这项研究揭示了由原子迁移驱动的III组化物中金属空缺的新基态. 了解结合性质是稳定化物材料中这些缺陷的关键.

关键词:
缺陷 缺陷 缺陷 缺陷 缺陷密度函数理论密度函数理论第三组化物.混合离子-共价键混合离子-共价键化合物复合物是的复合物.空缺职位集群是一个空缺职位集群.

更多相关视频

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

7.6K
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

14.0K

相关实验视频

Last Updated: Jun 8, 2025

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films
13:05

Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films

Published on: May 11, 2019

7.5K
Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
13:56

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

7.6K
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

14.0K

科学领域:

  • 材料科学 材料科学 材料科学
  • 固态物理 固态物理
  • 计算化学的计算化学

背景情况:

  • 第三组化物涂层表现出像空隙集群这样的缺陷,影响材料特性.
  • 驱动化物中空位聚合的电子机制尚未完全理解.

研究的目的:

  • 研究III组化物中空位聚合背后的电子机制.
  • 揭示金属空缺的新型地面状态及其形成动态.

主要方法:

  • 使用了ab initio计算方法.
  • 分析了混合共价-离子键特性在缺陷稳定性中的作用.

主要成果:

  • 鉴定了由原子迁移驱动的两个金属空缺的新基态.
  • 由于强有力的离子特性,AlN显示出异常稳定的空置集群.
  • 由于其较弱的离子特性,GaN表现出不太稳定的集群.
  • InN形成类似分子的化离子和三元体金属键,导致迁移和Schottky-Frenkel复合体缺陷.

结论:

  • 混合共价离子键的特征对于化物中空位集群稳定性至关重要.
  • 对AlN,GaN和InN缺陷形成的新见解.
  • 这些发现可以指导改进的化物基材料和设备的设计.