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Chemical Reactions in Aqueous Solutions03:03

Chemical Reactions in Aqueous Solutions

Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
Structure of Amines01:19

Structure of Amines

The hybridized nitrogen atom in amines possesses a lone pair of electrons and is bound to three substituents with a bond angle of around 108°, which is less than the tetrahedral angle of 109.5°. However, the C–N–H bond angle is slightly larger at 112°, with a carbon–nitrogen bond length of 147 pm. This carbon–nitrogen bond length of of amines is longer than the carbon–oxygen bond of alcohols (143 pm) but shorter than alkanes’ carbon–carbon bond (154 pm). These aspects are illustrated in Figure...
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

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.
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview01:26

1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview

Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...
Coordination Compounds and Nomenclature02:54

Coordination Compounds and Nomenclature

In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
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:

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Updated: Jun 26, 2026

Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
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Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers

Published on: September 27, 2018

バイナリ銀窒素アニオン[Ag(N3) 2]-は,銀窒素アニオンである.

Thomas M Klapötke1, Burkhard Krumm, Matthias Scherr

  • 1Department of Chemistry and Biochemistry, Ludwig-Maximilian University of Munich, Butenandtstrasse 5-13(D), D-81377 Munich, Germany.

Journal of the American Chemical Society
|January 9, 2009
PubMed
まとめ
この要約は機械生成です。

研究者らは,銀アジドと特定のアジドを反応させ,新しい銀-窒素化合物,ダイアジド-アルゼンチート (I) アニオンを合成した. カチオンの選択は,その結果生じる結晶構造における銀の周りのアジドイオンの調整に影響を与えます.

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Plasma-Assisted Molecular Beam Epitaxy Growth of Mg3N2 and Zn3N2 Thin Films

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Solution-Processed "Silver-Bismuth-Iodine" Ternary Thin Films for Lead-Free Photovoltaic Absorbers
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科学分野:

  • 無機化学 無機化学とは
  • クリスタル・エンジニアリング (Crystal Engineering) とは
  • 協調化化学について

背景:

  • シルバーアジドは,協調化学における既知のエネルギー物質であり前駆体である.
  • 銀の (((I) とアジドリガンドの協調行動は,新材料合成に興味深い.
  • 以前の研究では,様々な銀-窒素化合物を調査しましたが,ダイアジド-アルゼンチート (I) アニオンは特徴づけられませんでした.

研究 の 目的:

  • 新型ダイアジドアルゼンチート ((I) アニオン, [Ag ((N ((3)) ((2))) ((-)) を合成し,特徴づけること.
  • アニオンの結晶構造と調整環境に対する異なる対カチオンの影響を調査する.
  • シルバーアジドを含む反応を通じたバイナリシルバー-窒素化合物の形成を調査する.

主な方法:

  • シルバーアジドがトリフェニルスルフォニウムアジドおよびテトラフェニルフォスフォニウムアジドと反応する.
  • 合成塩の結晶構造を判別するための単結晶X線微分分析.
  • アジドリガンドと[Ag(N(3)) ((2))) ((-) アニオンの存在を確認するために,スペクトロスコーピーの特徴づけ (例えば,IRスペクトロスコーピー) を行う.

主要な成果:

  • ダイアジドアルゼンタート ((I) アニオン, [Ag ((N ((3)) ((2))) ((-)) を含む2つの新しい塩の合成に成功しました.
  • 結晶構造の決定により,シルバー (I) センターの周りのアジドリガンドの異なる協調幾何学が明らかになり,カチオン (トリフェニルシルフォニウムまたはテトラフェニルフォスフォニウム) に依存しています.
  • 銀 (((I) イオンは2つのアジドリガンドによって調整され,固体状態では線形またはわずかに曲がった[Ag (((N ((3)) ((2))) ((-) アニオンを形成します.

結論:

  • ダイアジド-アルゼンチート ((I) アニオンである[Ag ((N ((3)) ((2))) ((-)) は,新しいバイナリシルバー-窒素化合物を表しています.
  • 銀の周囲の協調球は,反カチオンのステリックと電子の性質によって大きく影響を受けます.
  • この研究は,銀-アジド複合体の既知の化学を拡張し,カチオン制御結晶工学の洞察を提供します.