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

8.6K
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...
8.6K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

42.8K
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,...
42.8K
Nuclear Transmutation03:20

Nuclear Transmutation

17.6K
Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed...
17.6K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

41.7K
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. 
41.7K
Electrophilic 1,2- and 1,4-Addition of X2 to 1,3-Butadiene01:14

Electrophilic 1,2- and 1,4-Addition of X2 to 1,3-Butadiene

2.5K
Electrophilic addition of halogens to alkenes proceeds via a cyclic halonium ion to form a 1,2-dihalide or a vicinal dihalide.
2.5K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

26.7K
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...
26.7K

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

AGO Recommendations for the Diagnosis and Treatment of Patients with Locally Advanced and Metastatic Breast Cancer: Update 2026.

Breast care (Basel, Switzerland)·2026
Same author

AGO Recommendations for the Diagnosis and Treatment of Patients with Early Breast Cancer: Update 2026.

Breast care (Basel, Switzerland)·2026
Same author

Stability of potato glycoalkaloids under heating conditions - Reactions with fatty acids.

Current research in food science·2026
Same author

AGO Breast Committee recommendations for the surgical therapy of breast cancer: Working Group on Gynecologic Cancers (AGO) update 2026.

European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology·2026
Same author

The community engagement and empowerment cycle: FAIRagro's framework to foster cultural change towards FAIR RDM practices in agrosystem science and beyond.

Journal of integrative bioinformatics·2026
Same author

Alterations in knee biomechanics and motor performance following 3 months training with the Football+ and 11+ warm-up programs among amateur female players. A three-armed cluster allocated, non-randomized intervention study.

Journal of exercise science and fitness·2026

相关实验视频

Updated: Jul 16, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

12.2K

在Be-Ru化合物中进行电荷转移.

Laura Agnarelli1, Yurii Prots1, Mitja Krnel1

  • 1Chemische Metallkunde, Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187, Dresden, Germany.

Chemistry (Weinheim an der Bergstrasse, Germany)
|September 23, 2023
PubMed
概括
此摘要是机器生成的。

研究人员发现了两个新的- (Be-Ru) 阶段,Be7Ru4和Be12Ru7,具有新的晶体结构. 这些发现促进了对Be-Ru金属间化合物及其结合特性的理解.

关键词:
的金属间化合物 的金属间化合物转移费用 转移费用 转移费用 转移费用化学结合分析的化学结合分析多原子极键是一种多原子极键.新的结构原型.

更多相关视频

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

2.8K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

5.7K

相关实验视频

Last Updated: Jul 16, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

12.2K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

2.8K
Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
08:54

Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid

Published on: January 25, 2020

5.7K

科学领域:

  • 材料科学 材料科学 材料科学
  • 固态化学 固态化学
  • 晶体学 晶体学是指结晶学.

背景情况:

  • 贝鲁二进制系统对于理解金属间化合物形成至关重要.
  • 现有的关于Be-Ru相的知识包括Be2Ru (Fe2P类型) 和Be3Ru2 (U3Si2类型) 结构.

研究的目的:

  • 为了研究Be-Ru二进制星系的新阶段.
  • 为了描述新发现的Be-Ru化合物的晶体结构和化学结合.

主要方法:

  • 单晶X射线衍射用于结构确定和精细化.
  • 电子状态密度 (DOS) 的计算.
  • 化学结合的位置空间分析.

主要成果:

  • 发现了两个新的阶段:Be7Ru4和Be12Ru7.
  • 确定新的晶体结构作为Fe2P和U3Si2动机的二维交融.
  • 分析显示出Fermi水平附近的明显DOS最小值和从Be到Ru的显著电荷转移.

结论:

  • 新的Be7Ru4和Be12Ru7阶段代表了Be-Ru系统中的新结构原型.
  • 它们的结构被合理化为已知的结构类型的相互生长.
  • 电子结构计算和结合分析为这些化合物的稳定性和特性提供了洞察力.