Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Valence Bond Theory02:42

Valence Bond Theory

9.8K
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...
9.8K
Atomic Nuclei: Nuclear Spin State Overview01:03

Atomic Nuclei: Nuclear Spin State Overview

1.2K
NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of...
1.2K
Atomic Nuclei: Nuclear Spin01:08

Atomic Nuclei: Nuclear Spin

3.4K
All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not...
3.4K
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

1.3K
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
1.3K
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

52.8K
The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
52.8K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.1K
Coupling interactions are strongest between NMR-active nuclei bonded to each other, where spin information can be transmitted directly through the pair of bonding electrons. While nuclei polarize their electrons to the opposite spins, the bonding electron pair has opposite spins. Configurations with antiparallel nuclear spins are expected to be lower in energy. When coupling makes antiparallel states more favorable, J is considered to have a positive value. The one-bond coupling constant, 1J,...
1.1K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Activation of methane by the tantalum trioxide anion, TaO<sub>3</sub><sup></sup>.

Physical chemistry chemical physics : PCCP·2026
Same author

Report of high data rate macromolecular crystallography (HDRMX) meeting, 23 July 2025.

Structural dynamics (Melville, N.Y.)·2026
Same author

Excitonic spin torque in a magnetic semiconductor.

Nature materials·2026
Same author

Conformational flexibility of soybean lipoxygenase is coupled to crystal solvent content in serial crystallography.

bioRxiv : the preprint server for biology·2026
Same author

Synthesis and Characterization of Layered Actinide (U, Np, Pu) Oxide and Hydroxide Phases.

Inorganic chemistry·2026
Same author

Author Correction: Hidden states and dynamics of fractional fillings in twisted MoTe<sub>2</sub> bilayers.

Nature·2026

関連する実験動画

Updated: Sep 30, 2025

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.7K

高スピンの超原子は,二重のサブシェル充填によって安定する.

Dinesh Bista1, Alexander P Aydt2, Kevin J Anderton3

  • 1Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23220, United States.

Journal of the American Chemical Society
|March 15, 2022
PubMed
まとめ
この要約は機械生成です。

研究者らは,二重の電子サブシェル充填を持つ特定の移行金属カルコゲニドクラスタは,驚くべき安定性と高スピン磁気モメントを示すことを発見しました. この発見は 安定した磁性超原子の設計に 新たな道を開きます

さらに関連する動画

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F&#8722;
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

8.8K
High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.7K

関連する実験動画

Last Updated: Sep 30, 2025

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.7K
Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F&#8722;
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

8.8K
High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

11.7K

科学分野:

  • * ナノ科学と材料化学
  • * 量子化学と超原子理論

背景:

  • 電子の殻を満たし 安定性を高める超原子を生み出します
  • * 八面形の移行金属カルコゲニドクラスターは100または114のバレンスの電子で安定した構成を達成できます.

研究 の 目的:

  • * 理論的に予測し,高安定性と高スピン磁性を組み合わせた超原子群を実験的に検証する.
  • * 移行金属カルコゲニドクラスタにおけるこれらの性質の達成における二重サブシェルの充填の役割を調査する.

主な方法:

  • * 電子構造と安定性の理論的計算
  • * 新しいクラスターの実験合成と特徴付け, [NEt4]5[Fe6S8(CN) 6
  • * 磁気特性測定と電子構造分析

主要な成果:

  • * 107個のバレンスの電子を持つクラスタは,二重のサブシェル充填 (57+50個の電子) を達成することが示された.
  • * 合成したクラスターで高い安定性と高スピン磁気モメント (S = 7/2) が確認された.
  • 新型超原子の電子構造を 完全に外した.

結論:

  • * 移行金属カルコゲニド群の二重サブシェルの充填の重要性を示す最初の計算および実験的証拠.
  • * 材料科学における潜在的応用を持つ,安定した高スピン磁性超原子の新種を確立した.