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

Metallic Solids02:37

Metallic Solids

21.3K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
21.3K
Valence Bond Theory02:42

Valence Bond Theory

11.5K
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...
11.5K
Coordination Number and Geometry02:57

Coordination Number and Geometry

19.5K
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
19.5K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

31.6K
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...
31.6K
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

2.0K
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
2.0K
[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement01:21

[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement

3.6K
The Cope rearrangement is classified as a [3,3] sigmatropic shift in 1,5-dienes, leading to a more stable, isomeric 1,5-diene. The reaction involves a concerted movement of six electrons, four from two π bonds and two from a σ bond, via an energetically favorable chair-like transition state.
3.6K

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

The Effectiveness of Calamansi (Citrus microcarpa) Extract in Enhancing the Shelf Life and Quality of Dakgalbi Made from Domestic Korean Chicken.

Food science of animal resources·2026
Same author

Chiral supramolecular alloys: programmable 2D-3D control <i>via</i> Co-assembly of isomorphous β-peptide foldamers.

Chemical communications (Cambridge, England)·2026
Same author

Refined Shockley-Queisser Framework-Guided Acceptor Design Enables Loss-Aware Bandgap Targeting in Organic Solar Cells.

Journal of the American Chemical Society·2026
Same author

Electrochemical Strain-Release Difunctionalization of Azabicyclo-[1.1.0]butanes with Nitroarenes.

Journal of the American Chemical Society·2026
Same author

Association of anticoagulant and antiplatelet therapy with acute cerebral infarction in patients presenting with isolated vertigo or dizziness: A retrospective cohort study.

PloS one·2026
Same author

Interactive effects of wet-aging and slaughter age on physicochemical and taste-related characteristics of Hanwoo beef loin.

Food research international (Ottawa, Ont.)·2026

相关实验视频

Updated: Mar 18, 2026

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

3.9K

具有动态包装转换的二维Pd-C粘合有机金属框架.

Jong-Yeong Jung1, Jaewook Kim1,2, Jintaek Gong3

  • 1Department of Chemistry, Korea Advanced Institute of Science and Technology 291, Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea hee-seung_lee@kaist.ac.kr hsong@kaist.ac.kr.

Chemical science
|March 16, 2026
PubMed
概括

研究人员开发了一种新的二维有机金属框架,PdOF-1,使用直接的碳键. 这一突破扩大了金属有机框架 (MOF) 设计,通过使持久的共价链接和可调节的结构适应性.

更多相关视频

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

49.4K
Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.6K

相关实验视频

Last Updated: Mar 18, 2026

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

3.9K
Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

49.4K
Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
07:20

Author Spotlight: Accelerating Discovery in Microporous Material Chemistry

Published on: October 6, 2023

4.6K

科学领域:

  • 材料科学 材料科学 材料科学
  • 无机化学 无机化学 有机化学
  • 超分子化学 超分子化学

背景情况:

  • 传统的金属有机框架 (MOF) 依赖于金属氧或金属键,由于硬软酸原理限制了软金属的使用.
  • 由于有限的可逆性和配体稀缺性,MOF中的金属-碳联系具有挑战性,阻碍了像等软金属的结合.

研究的目的:

  • 为了合成一种新的二维有机金属框架 (MOF),利用直接的金属-碳键.
  • 探索软金属中心的稳定,使用框架结构中的共价链接.
  • 研究新合成的MOF的结构适应性和转变.

主要方法:

  • 2D有机金属框架 (PdOF-1) 通过单,碳酸盐导向的正形C-H激活过程进行合成.
  • 通过直接的-碳 (Pd-C) 键,利用甲酸盐 (bdc^2-) 作为有机连接体来稳定软中心.
  • 使用单晶X射线衍射进行表征,并进行全面的结构和光谱分析.

主要成果:

  • 成功合成了PdOF-1,一个具有直接Pd-C键的2D框架,稳定软中心并防止聚合.
  • 通过单晶X射线衍射揭示了一个曲的2D格子,有序堆叠和正方形平面Pd协调.
  • 在去除DMSO时观察到两步固态结构转换 (层切割和压缩) 以及使用协调溶剂进行进一步的转换.

结论:

  • 建立了一个新的合成策略,将有机金属化学和MOF合成的网状设计结合起来.
  • 扩大了MOF的化学空间,包括具有持久的共价金属-碳联系的框架.
  • 在合成的PdOF-1中证明了可调节的结构适应性,为新材料应用开辟了道路.