![The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F54498.jpg&w=3840&q=50)
シアノアウラートベースのオルガノチンポリマーの合成と構造,異常なイオン交換特性を示す
Andrea Deák1, Tünde Tunyogi, Gábor Pálinkás
1Institute of Structural Chemistry, Chemical Research Center, Hungarian Academy of Sciences, H-1025 Budapest, Pusztaszeri ut 59-67, Hungary. deak@chemres.hu
Journal of the American Chemical Society
|February 10, 2009
まとめ
この研究は,ユニークなイオン交換能力を持つ最初のシアノアウラートベースのオルガノチンポリマーを導入します. これらの新しい材料は,金属交換特性を示し,新しい機能的材料への道を開く.
科学分野:
- 材料科学 材料科学とは
- 無機化学 無機化学とは
- コーディネーションポリマー
背景:
- オルガノチンポリマーは,多様な用途を持つ多用途な材料です.
- シアノウラート複合体は,ユニークな構造および電子特性を有しています.
- 協調ポリマーにおける金属交換の理解は,機能的な材料の開発に不可欠です.
研究 の 目的:
- シアノアウラートベースの新種のオルガノチンポリマーを合成し,特徴づけること.
- これらのポリマーのイオン交換および金属交換特性を調査する.
- これらの新しい材料の構造的多様性と潜在的な応用を探求する.
主な方法:
- 有機金属反応によるオルガノチンポリマーの合成.
- 構造的特徴は,X線 difraktionおよび他のスペクトル学的技術を用いて特徴づけられる.
- 様々な金属イオンによるイオン交換および金属交換実験.
主要な成果:
- 最初のシアノアウラートベースのオルガノチンポリマー,Me(3) Sn[Au(CN)(2) ] (1),が合成され,構造的に特徴づけられました.
- ポリマー1は異常なイオン交換特性を持ち,Au...Au結合による2Dグリッドを形成する.
- ポリマー1は,移行金属カチオンとの完全な金属交換を経て,新しい異金属サイアノウラートを形成することができます.
結論:
- 新型シアノ酸塩ベースのオルガノチンポリマーは,ユニークなイオン交換および金属交換特性を有しています.
- これらの発見は,調節可能な性質を持つ機能的調整ポリマーを設計するための新しい道を開きます.
- この研究は,シアノアウラート基ヘテロメタリックポリマーの金属交換行動に関する最初の調査です.
関連する概念動画
02:34Structural 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...
02:42Valence 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...
01:17Ion Exchange
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or basic...
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
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 the dxy,...
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 the dxy,...
01:23Properties of Organometallic Compounds
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
02:51Metal-Ligand Bonds
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...