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

π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.0K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.0K
Valence Bond Theory and Hybridized Orbitals02:38

Valence Bond Theory and Hybridized Orbitals

18.5K
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...
18.5K
Quantum Numbers02:43

Quantum Numbers

34.1K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
34.1K
Radicals: Electronic Structure and Geometry01:07

Radicals: Electronic Structure and Geometry

3.8K
This lesson delves into the geometry of a radical, which is influenced by the electronic structure of the molecule. The principle is similar to that of a lone pair, where the unpaired electron influences the geometry at the radical center.
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
3.8K
Functional Groups02:45

Functional Groups

20.1K
20.1K
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds01:14

π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds

1.1K
In aromatic compounds, such as benzene, the circulation of (4n + 2) π-electrons sets up a diamagnetic or diatropic ring current around the perimeter of the molecule. This current induces a magnetic field that opposes the external field inside the ring and reinforces it on the outside. The protons in benzene are deshielded and exhibit high chemical shifts in the range 6.5–8.5 ppm. The shielding effect at the center of the ring is evident in complex aromatic molecules, such as...
1.1K

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

Silicon Flavylium Polymethine Dyes for Shortwave Infrared Imaging.

Journal of the American Chemical Society·2026
Same author

Modeling CO<sub>2</sub> Hydrogenation to Methanol on an Ensemble of Inverse ZrO<sub>2</sub> on Cu Catalytic Sites: Mechanism, Reactivity, and Deactivation.

Angewandte Chemie (International ed. in English)·2026
Same author

Cation-Limited Hydroxide Anion Diffusion Drives Asymmetric Hydrogen Kinetics on Transition-Metal Decorated Platinum Surface.

Journal of the American Chemical Society·2026
Same author

What can Raman spectroscopy really say about the adsorbed CO on roughened Cu electrodes in CO<sub>2</sub> electroreduction conditions?

Faraday discussions·2026
Same author

A protein-based model of carbon monoxide dehydrogenase exhibits tunable covalency across cluster oxidation and ligand-bound states.

Chemical science·2026
Same author

Low-Temperature Non-Oxidative Coupling of Methane on Atomically Dispersed Titanium-Aluminum-Boron Nanopowder.

Journal of the American Chemical Society·2026
Same journal

Taming Irreversibility in sp<sup>2</sup>-Carbon-Conjugated COFs from Polycrystalline Powders to Single Crystals and Thin Films.

Accounts of chemical research·2026
Same journal

Electroactive Imidazolium Ionic Liquids in Organic Synthesis.

Accounts of chemical research·2026
Same journal

Calix[4]resorcinarene-Based Porous Organic Cages: Synthesis and Applications.

Accounts of chemical research·2026
Same journal

Light-Driven Dual Rotary Molecular Motors and Beyond.

Accounts of chemical research·2026
Same journal

Small Molecule Activators of Antitumor Immunity.

Accounts of chemical research·2026
Same journal

Confinement-Driven Anomalous Behaviors for Diffusion in Zeolites: Mechanisms and Beyond.

Accounts of chemical research·2026
查看所有相关文章

相关实验视频

Updated: May 15, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.4K

对于量子函数组的振动工程.

Haowen Zhou1, Taras Khvorost2, Anastassia N Alexandrova2

  • 1Department of Physics and Astronomy, University of California, Los Angeles, California90095, United States.

Accounts of chemical research
|April 7, 2025
PubMed
概括
此摘要是机器生成的。

化学家现在可以为分子量子计算设计量子函数组 (QFGs). 这些QFG充当量子手柄,使分子中的量子状态准备和测量 (SPAM) 成为可能.

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

7.5K
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

5.6K

相关实验视频

Last Updated: May 15, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.4K
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

7.5K
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

5.6K

科学领域:

  • 分子量子信息科学是分子量子信息科学.
  • 量子化学是一种量子化学.
  • 材料科学是一种材料科学.

背景情况:

  • 化学中的功能组为分子提供了特定的特性.
  • 量子函数组 (QFGs) 被提出为量子状态准备和测量 (SPAM) 的分子类型.
  • 分子系统对量子信息处理提出了挑战,因为它们的无数自由度导致了脱相.

研究的目的:

  • 探索化学设计原则,以优化QFG性能.
  • 为了研究能够在不损害量子性质的情况下容纳QFG的分子支架.
  • 为了获得QFG功能分子的振动工程规则.

主要方法:

  • 作为QFG的土 (I) 氧化物 (MOR) 的设计和合成,特别是 -OM (M = Ca, Sr) 图案.
  • 将QFG连接到各种亚利法和芳香碳化合物支架上.
  • 分析影响光学循环特性的化学因素 (结合,符合形成,电子吸收能力,对称性).
  • 探索与QFG量子比特性能相关的物理现象 (费米共振,超辐射).

主要成果:

  • 土氧化物显示出有效的SPAM的潜力.
  • -OM (M = Ca, Sr) 图案有效地作为一个量子手柄.
  • 化学特性显著影响QFGs的光学循环行为.
  • 已经建立了对QFG功能进行振动工程的初始规则.

结论:

  • QFG,特别是土氧化物,为分子量子计算提供了一个有前途的途径.
  • 审慎的分子设计和振动工程对于克服分子量子比特中的脱节至关重要.
  • 通过先进的分子和材料设计来增加QFG数量密度的进一步前景存在.