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

Exceptions to the Octet Rule02:55

Exceptions to the Octet Rule

Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
Atomic Mass01:52

Atomic Mass

Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which are...
Noble Gases02:54

Noble Gases


The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
Hydroboration-Oxidation of Alkenes03:08

Hydroboration-Oxidation of Alkenes

In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
Lewis Acids and Bases02:16

Lewis Acids and Bases

This lesson delves into Lewis acids and bases in the context of the octet rule for electron-deficient compounds. Here, the concept is discussed, emphasizing the group 13 elements like boron or aluminium. Since group 13 elements possess three valence electrons, they form trivalent compounds with a sextet of electrons and a vacant orbital for the central atom. Consequently, these electron-deficient compounds accept electrons from other species to complete their octet in a chemical reaction. They...

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

CRISPR screen identifies autophagy inhibition (GNS561) as a PARP inhibitor (AZD5305) combination strategy in small cell lung cancer.

Cancer & metabolism·2026
Same author

Surprises from a boron-rich semiconductor under pressure.

National science review·2026
Same author

Decomposition of Molecular Charge and Spin Transfer Global Indexes into Atomic Group Contributions.

Journal of chemical theory and computation·2026
Same author

Simple electronegativity-based model for predicting formation of stable compounds across the periodic table.

Nature communications·2025
Same author

Invisible water in subducted crust: Lawsonite velocity anomalies under mantle conditions.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Experimental Exchange Interaction Dataset for Magnetic Materials: Spin Waves to MC Simulations.

Scientific data·2025

関連する実験動画

Updated: Jun 26, 2026

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
09:05

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

元素ボルンのイオン型高圧形態である.

Artem R Oganov1, Jiuhua Chen, Carlo Gatti

  • 1Laboratory of Crystallography, Department of Materials, ETH Zurich, Wolfgang-Pauli-Str. 10, CH-8093 Zurich, Switzerland. artem.oganov@sunysb.edu

Nature
|February 3, 2009
PubMed
まとめ

高圧実験では,89GPaまで安定した新しい,部分的にイオン性ボロン相が明らかになりました. この複雑なボロン構造は,環境条件に耐火性があり,独特の電子と光学特性を有しています.

さらに関連する動画

Negative Additive Manufacturing of Complex Shaped Boron Carbides
06:45

Negative Additive Manufacturing of Complex Shaped Boron Carbides

Published on: September 18, 2018

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
13:09

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

関連する実験動画

Last Updated: Jun 26, 2026

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
09:05

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

Negative Additive Manufacturing of Complex Shaped Boron Carbides
06:45

Negative Additive Manufacturing of Complex Shaped Boron Carbides

Published on: September 18, 2018

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
13:09

Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis

Published on: January 6, 2016

科学分野:

  • 凝縮物質物理学 凝縮物質物理学
  • 材料科学 材料科学とは
  • 固体化学 固体化学

背景:

  • ボロンは,金属と断熱剤の間の位置にあるため,複雑な化学的行動を示す.
  • その構造的安定性は,環境条件下でも,まだ完全に理解されていません.
  • 以前の研究で,多数のボルンポリモルフが特定されましたが,安定した相については明確ではありませんでした.

研究 の 目的:

  • 高圧下でのボールの構造的安定性を調査するために.
  • 新しいボロン相の存在と性質を調査する.
  • 高圧ボールの電子的および構造的特徴を特徴づけるために.

主な方法:

  • 高圧実験技術. 高圧実験技術.
  • Ab initio 進化の結晶構造予測アルゴリズム.
  • 電子帯域構造,赤外線吸収,介電定数に関する分析.

主要な成果:

  • 部分イオン性高圧ボロン相の発見.
  • この相は19から89GPaの間で安定し,環境条件に合わせて消し止めることができる.
  • 新しい構造 (空間群Pnnm) は,NaCl型配列のイコサヘドラルなB(12) クラスターとB(2) ペアを特徴としています.

結論:

  • 特定された高圧ボロン相は,独特のイオン性を示し,その電子的および光学的性質に影響を与えます.
  • このイオン性は,B(12) クラスターとB(2) カップルの間の電荷移転から生じる.
  • この発見は,ボロンの複雑な相図と性質のより深い理解に貢献します.