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

Precipitation Reactions03:10

Precipitation Reactions

51.3K
In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction occurs when oppositely charged ions in solution overcome their attraction for water and bind to each other, forming a precipitate that separates out from the solution. Since such reactions involve the exchange of ions between ionic compounds in aqueous solution, they are also referred to as double displacement, double replacement, exchange reactions, or...
51.3K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

46.7K
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. 
46.7K
Molecular and Ionic Solids02:54

Molecular and Ionic Solids

16.5K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
16.5K
Ionic Crystal Structures02:42

Ionic Crystal Structures

18.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
18.1K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

47.6K
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...
47.6K
Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction01:22

Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction

1.4K
The radical dimerization of ketones or aldehydes gives vicinal diols through a pinacol coupling reaction. However, the behavior of titanium metals used for the reaction as a source of electrons is unusual. When the reaction is carried out in the presence of titanium, diols can be isolated at low temperatures. Else titanium further reacts with diols, forming alkenes through the McMurry reaction.
1.4K

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

Interaction of ARA54 with androgen receptor in mediating testosterone-dependent regulation of caput epididymal GPX5 expression in mice.

Theriogenology·2026
Same author

Stem cell-based therapeutic strategies for liver aging.

Liver research (Beijing, China)·2025
Same author

Corrigendum: Risk of primary Sjogren's Syndrome following human papillomavirus infections: a nationwide population-based cohort study.

Frontiers in immunology·2024
Same author

Light Field-Enhanced Single-Site Cu Electrocatalyst for Nitrogen Fixation.

Small (Weinheim an der Bergstrasse, Germany)·2023
Same author

Risk of primary Sjogren's Syndrome following human papillomavirus infections: a nationwide population-based cohort study.

Frontiers in immunology·2022
Same author

High-temperature, high-pressure hydrothermal synthesis, crystal structure, and solid state NMR spectroscopy of a lead borosilicate with boron-silicon mixing: Pb<sub>6</sub>B<sub>2</sub>Si<sub>8</sub>O<sub>25</sub>.

Dalton transactions (Cambridge, England : 2003)·2021
Same journal

Switching Site Selectivity in Alkoxyamine Hydration: From Lone-Pair Direction to Solvent Network Dominance.

Journal of the American Chemical Society·2026
Same journal

A Topotactic Leap: 2D Layers to 3D Large-Pore Zeolite.

Journal of the American Chemical Society·2026
Same journal

Enhanced Hydrogen Evolution over Single-Atom Catalysts via Electrostatic Polarization in Contact-electro-catalysis.

Journal of the American Chemical Society·2026
Same journal

Tumor Acidity-Activatable Ionizable Lipid Nanoparticles for Selective Oncolytic Therapy.

Journal of the American Chemical Society·2026
Same journal

Alternating Magnetic Field Promotes Ammonia Cracking by Disrupting the Sabatier Limitation of Ruthenium Catalytic Species.

Journal of the American Chemical Society·2026
Same journal

Bulk Ferromagnetic Icosahedral Quasicrystals without Rapid Quenching.

Journal of the American Chemical Society·2026
関連記事をすべて見る

関連する実験動画

Updated: May 5, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
10:35

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

9.3K

ターノシリケートで,第2ハーモニック生成反応が強く一致する.

Tzu-Ling Chao1, Wen-Jung Chang1, Shu-Han Wen1

  • 1Department of Chemistry, National Central University , Zhongli, Taiwan 320, R.O.C.

Journal of the American Chemical Society
|July 15, 2016
PubMed
まとめ
この要約は機械生成です。

研究者らは高度なレーザー用水晶を開発しました これらの新しい非線形光学材料は,優れた周波数倍化の性質を示し,技術的な進歩のための有望な代替案を提供します.

さらに関連する動画

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

9.7K
Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional &#960;-conjugate Systems
09:57

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

7.7K

関連する実験動画

Last Updated: May 5, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
10:35

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

9.3K
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
10:12

Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples

Published on: June 19, 2018

9.7K
Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional &#960;-conjugate Systems
09:57

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

7.7K

科学分野:

  • 材料科学
  • 固体化学
  • 光電子機器

背景:

  • 非線形光学 (NLO) 材料は,レーザー技術にとって極めて重要です.
  • 現存するNLO材料には,酸化物,リン酸,ボラート,およびフッ素ボラートが含まれます.
  • NLOの有用な性質を持つ過渡金属シリケートについては,これまで報告されていません.

研究 の 目的:

  • NLO特性を持つ新しい移行金属シリケート材料を合成し,特徴づけること.
  • 新しいチタノシリケートの構造と光学特性を探求する.
  • 周波数を倍増するアプリケーションにこれらの材料の適性を評価する.

主な方法:

  • 流量と超臨界水熱法を使用して結晶合成.
  • 合成されたチタノシリケートの構造分析
  • 第2ハーモニックジェネレーション (SHG) の性質の評価

主要な成果:

  • 2つの新しいチタノシリケート:Li2K4[(TiO) Si4O12]とLi2Rb4[(TiO) Si4O12]を成功して合成した.
  • 圧縮されたTiO5ピラミッドで無限のTiOチェーンを形成する3Dフレーム構造を発見した.
  • これらの材料は,効率的な第2ハーモニー生成のための重要な属性を持っていることを実証しました.

結論:

  • 新しいチタノシリケートには 望ましい非線形光学特性がある.
  • これらの材料は,レーザー技術における周波数倍化アプリケーションの魅力的な候補です.
  • この発見は,移行金属シリケートに基づく高度なNLO材料の設計に新しい道を開きます.