メイングループと移行要素のIRMOFの同類であるIRMOFの同類である
Steffen Hausdorf1, Felix Baitalow, Tony Böhle
1Institut für Physikalische Chemie, TU Bergakademie Freiberg, Leipziger Strasse 29, D-09596 Freiberg, Germany.
Journal of the American Chemical Society
|August 12, 2010
まとめ
新しい方法は,コバルトやベリリウムを含む多様な金属ベースのIRMOFを合成し,結晶工学アプリケーションのためのMOFの構造と特性を拡張します.
科学分野:
- 材料科学 材料科学とは
- 無機化学 無機化学とは
- クリスタログラフィーです.
背景:
- インターペネトレーティング・メタル・オーガニック・フレームワーク (IRMOF) シリーズ,特にMOF-5は,多孔性の材料の重要なクラスを表しています.
- 既存のIRMOF合成は主に亜鉛ベースの構造に焦点を当て,多様な機能の探索を制限しています.
研究 の 目的:
- IRMOFの構造のより広い範囲を合成するための多用途の2つのコンポーネントの手順を開発する.
- IRMOFの枠組みに亜鉛以外の様々な金属中心を組み込むことの実現可能性を実証する.
- 予測性結晶工学によるIRMOF構造の拡張を可能にする.
主な方法:
- 単純な2つの成分反応手順が採用されました.
- 合成には,亜鉛,コバルト,ベリリウムの前駆物質を使用した.
- この方法は,幅広い金属前駆体に対して適応できるように設計された.
主要な成果:
- この手順では,亜鉛ベースのIRMOF (MOF-5) およびそのコバルトおよびベリリウム類の同類物を成功裏に合成しました.
- これは,様々な金属センターを使用したIRMOFシリーズの最初の成功したミラーリングを表しています.
- この方法は,調節可能な性質を持つ多数のIRMOF同種を生成するための有望な結果を示しています.
結論:
- 開発された手順は,IRMOF合成の範囲を大幅に拡大します.
- コバルトのような異なる金属の中心を組み込むことは,磁気特性などの新しい機能性を導入します.
- このアプローチは,新しい多孔性の材料の予測的設計と合成を容易にする.
関連する概念動画
Periodic Classification of the Elements
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
Properties of Transition Metals
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
The Periodic Table
As early chemists discovered more elements, they realized that various elements could be grouped by their similar chemical behaviors. One such grouping includes lithium (Li), sodium (Na), and potassium (K). All of these elements are shiny, conduct heat and electricity well, and have similar chemical properties. A second grouping includes calcium (Ca), strontium (Sr), and barium (Ba), which also are shiny, good conductors of heat and electricity, and have chemical properties in common. However,...
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...
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...
Stereoisomerism
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Elements: Chemical Symbols and Isotopes
A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...


