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関連する概念動画

Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

47.4K
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...
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Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

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sp3d and sp3d 2 Hybridization
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Valence Bond Theory02:42

Valence Bond Theory

8.9K
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...
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Structure of Benzene: Molecular Orbital Model01:18

Structure of Benzene: Molecular Orbital Model

9.4K
According to the molecular orbital (MO) model, benzene has a planar structure with a regular hexagon of six sp2 hybridized carbons. As shown in Figure 1, each carbon is bonded to three other atoms with C–C–C and H–C–C bond angles of 120°. The C–H bond length is 109 pm, and the C–C bond length is 139 pm which is midway between the single bond length of sp3 hybridized carbons (154 pm) and sp2 hybridized carbons (133 pm).
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Valence Bond Theory and Hybridized Orbitals02:38

Valence Bond Theory and Hybridized Orbitals

19.6K
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...
19.6K
π Molecular Orbitals of 1,3-Butadiene01:24

π Molecular Orbitals of 1,3-Butadiene

9.3K
Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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分子界面工学による六角混合ビスミュテン

Christian Dolle1,2, Víctor Oestreicher1, Alberto M Ruiz1

  • 1Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, Catedrático José Beltrán Martínez n° 2, 46980 Paterna, Spain.

Journal of the American Chemical Society
|June 1, 2023
PubMed
まとめ
この要約は機械生成です。

研究者は高品質のビスムートハイブリッド材料の 新規でスケーラブルなコロイド合成を開発しました このプロセスは,高度なデバイスアプリケーションのための強化された電子特性を可能にするユニークな再構築された表面を生成します.

さらに関連する動画

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
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Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
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Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
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Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
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科学分野:

  • 材料科学
  • ナノテクノロジー
  • 表面化学

背景:

  • 層のヘテロ構造の伝統的な方法は,複雑な物理的プロセスまたは機械的剥離を伴うため,しばしば欠陥が生じます.
  • 湿った化学合成された材料は,しばしば表面残留物と固有の欠陥を示し,それらの電子アプリケーションを制限します.

研究 の 目的:

  • 高品質の低層ビスムートハイブリッド材料のスケーラブルで効率的な合成を開発する.
  • 表面機能化と再構築が材料の電子特性と潜在的な応用に与える影響を調査する.

主な方法:

  • コロイド光触媒による単体酸化還元反応で,少層ビスムート混合物を合成する.
  • 機能化された表面と再構築された表面の特徴.
  • 個々のナノフレークの予測と室温輸送測定.

主要な成果:

  • 硫黄アルキル機能化された表面で"電子グレード"の少層ビスムートハイブリッドの成功合成.
  • 再構築された表面は 酸化を防ぎ 電子構造を調整し 金属の振る舞いに繋がります
  • 輸送測定による金属の動作の実験的検証.

結論:

  • 二次元 (2D) システムでの表面再構築は,新しい電子特性を誘導することができます.
  • 拡張可能な合成は,高度な電子,スピントロニック,およびプラズモニックデバイスを製造するための新しい可能性を提供します.
  • 2Dビスムスのハイブリッド材料は,触媒,生物医学,エネルギー変換の応用の可能性を示しています.