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

Formation of Complex Ions03:45

Formation of Complex Ions

23.9K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.9K
Complexation Equilibria: Overview01:23

Complexation Equilibria: Overview

766
Complexation reactions take place when dative or coordinate covalent bonds form between metal ions and ligands. The compounds formed in these reactions are called coordination compounds. The number of bonds formed between the metal ion and the ligands is called its coordination number. Generally, most metal ions in an aqueous solution are solvated by water molecules and thus exist as aqua complexes.
The equilibrium constant of the complexation reaction is represented as the formation constant...
766
Intermolecular Forces03:13

Intermolecular Forces

59.0K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
59.0K
Complexometric Titration: Ligands00:43

Complexometric Titration: Ligands

1.1K
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
1.1K
Water: A Bronsted-Lowry Acid and Base02:30

Water: A Bronsted-Lowry Acid and Base

50.9K
The reaction between a Brønsted-Lowry acid and water is called acid ionization. For example, when hydrogen fluoride dissolves in water and ionizes, protons are transferred from hydrogen fluoride molecules to water molecules, yielding hydronium ions and fluoride ions:
50.9K
Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

590
In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
590

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

Redefining ·CO<sub>3</sub><sup>-</sup> Formation Chemistry: Zundel-like Switches Drive Carbonate-·OH Interfacial Reactivity.

Journal of the American Chemical Society·2026
Same author

Graphdiyne confined-membrane with intrinsic in-plane-pores for angstrom-scale gas sieving.

Nature communications·2026
Same author

Electronic structure and spectroscopy of ClSO.

The Journal of chemical physics·2026
Same author

Assessing probe reliability: Functional group-specific biases revealed by interactome-wide docking of general anesthetics.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Electrostatic Confinement of Plasma Electrons by Water Microdroplets Enables Dinitrogen Oxidation.

Journal of the American Chemical Society·2026
Same author

Marine upper-tropospheric rapid particle formation dominated by methanesulfonic acid.

Proceedings of the National Academy of Sciences of the United States of America·2026

関連する実験動画

Updated: Aug 14, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.1K

イミドゲンの水複合体

Xiaolong Li1, Bo Lu1, Junjie Jiang1

  • 1Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, 200433 Shanghai, China.

Journal of the American Chemical Society
|January 12, 2023
PubMed
まとめ

研究者は水と複合した最も単純な窒素水化物であるイミドゲン (NH) を観察した. この発見は,アミダーション反応のメカニズムに光を当てて,星間化学の洞察を提供します.

さらに関連する動画

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

10.9K
Isolation of Labile Multi-protein Complexes by in vivo Controlled Cellular Cross-Linking and Immuno-magnetic Affinity Chromatography
10:50

Isolation of Labile Multi-protein Complexes by in vivo Controlled Cellular Cross-Linking and Immuno-magnetic Affinity Chromatography

Published on: March 9, 2010

17.5K

関連する実験動画

Last Updated: Aug 14, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

69.1K
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

10.9K
Isolation of Labile Multi-protein Complexes by in vivo Controlled Cellular Cross-Linking and Immuno-magnetic Affinity Chromatography
10:50

Isolation of Labile Multi-protein Complexes by in vivo Controlled Cellular Cross-Linking and Immuno-magnetic Affinity Chromatography

Published on: March 9, 2010

17.5K

科学分野:

  • 化学物理学
  • 天体化学
  • 反応メカニズム

背景:

  • イミドゲン (NH) は最も単純な窒素水化物であり,燃焼と恒星間化学において重要である.
  • NHと水の反応は,ニトロンの中間体によるO-H結合アミデーションのモデルである.

研究 の 目的:

  • イミドーゲン (NH) の難解な水複合体を観察し,特徴づけること.
  • NH + H2O反応のメカニズムを解明する.

主な方法:

  • マトリックス分離スペクトル (10KのN2マトリックス)
  • 赤外線 (IR) スペクトロスコーピーは,同位体ラベル (D,18O,15N) を付けています.
  • 量子化学計算 (UCCSD(T) / aug-cc-pVQZ) について

主要な成果:

  • イミドーゲンの水複合体NH··OH2は,前反応複合体として成功裏に観察された.
  • 観測データと計算データで 水素結合構造が確認されました
  • 365 nmでの複合体の光分解により,OH結合が挿入され,ヒドロキシラミン (NH2OH) が形成される.

結論:

  • この研究はNH·H2O前反応複合体の直接的な証拠を提供する.
  • 発見はNH-水アミデーションの提案されたメカニズムを検証する.
  • この研究は,燃焼と天体化学に関連する基本的な化学反応の理解を進める.