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関連する概念動画

Valence Bond Theory02:45

Valence Bond Theory

Overview of Valence Bond Theory
Ionic Crystal Structures02:42

Ionic Crystal Structures

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...
Metallic Solids02:37

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Coordination Number and Geometry02:57

Coordination Number and Geometry

For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar.
Structural Isomerism02:34

Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...
Valence Bond Theory02:42

Valence Bond Theory

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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Updated: Jun 29, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

Sn12(2-): スタナスフェレンである.

Li-Feng Cui1, Xin Huang, Lei-Ming Wang

  • 1Department of Physics, Washington State University, 2710 University Drive, Richland, WA 99354, USA.

Journal of the American Chemical Society
|June 29, 2006
PubMed
まとめ
この要約は機械生成です。

スタナスフェレンという新しい亜鉛のクラスターは,驚くべき安定性と対称性を示しています. このユニークな構造は,移行金属をカプセル化し,ナノマテリアルの新しい構成要素を作成することができます.

さらに関連する動画

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

関連する実験動画

Last Updated: Jun 29, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
08:15

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups

Published on: February 11, 2012

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
12:43

The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique

Published on: November 28, 2016

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)

Published on: December 29, 2016

科学分野:

  • 無機化学 無機化学とは
  • マテリアルサイエンス 材料科学
  • ナノテクノロジー ナノテクノロジー

背景:

  • 新しいクラスター化合物の探査は,材料科学の進歩に不可欠です.
  • 金属クラスターの結合と構造特性を理解することは,新しいナノマテリアルの設計に情報を与えます.

研究 の 目的:

  • スタンナスフェレンと呼ばれる安定した亜鉛群の発見と特徴を報告するために.
  • スタナスフェレンケージ内の電子構造と結合を調査する.
  • ナノ材料合成における移行金属の宿主としてのスタナスフェレンの可能性を調査する.

主な方法:

  • Sn122-クラスタを研究するために,計算モデリングと理論分析が採用されました.
  • 結合の分析には,非局所化された放射性パイ結合と球体上のシグマ結合を調査することが含まれていた.
  • この研究では,イコサヘドラルケージの構造的安定性と内部体積を評価した.

主要な成果:

  • Sn122-クラスターであるスタナスフェレンは,非常に安定し,対称なアイコサヘドラルケージとして特定されました.
  • このケージは,Sn 5p軌道から発生した4つの非局所化された放射性パイ結合と9つの非局所化された球上のシグマ結合によって安定化されています.
  • スタナスフェレンは直径6.1 Åで,過渡金属原子を収容できる大きな内部空洞を持っています.

結論:

  • スタナスフェレン (Stannaspherene) は,ユニークな構造および電子特性を有する,新しい種類の安定した金属クラスターを代表しています.
  • スタンナスフェレンの移行金属を封じ込めることの能力は,クラスター組立ナノマテリアルの有望なエンドヘッダルの構成要素にします.
  • この発見は,特異な性質を持つ高度なナノマテリアルの開発への道を開きます.