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関連する概念動画

Coordination Number and Geometry02:57

Coordination Number and Geometry

17.9K
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.
17.9K
Protein Networks02:26

Protein Networks

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
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Assembly of Cytoskeletal Filaments01:18

Assembly of Cytoskeletal Filaments

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Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
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Valence Bond Theory02:42

Valence Bond Theory

10.4K
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...
10.4K
Stereoisomerism02:52

Stereoisomerism

13.3K
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...
13.3K
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

23.1K
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...
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Updated: Nov 30, 2025

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
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Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR

Published on: December 16, 2013

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サイクル二ペプチドによる二次元調整ネットワーク

Yuanyuan Guo1, Ajiguli Nuermaimaiti1, Niels Due Kjeldsen1

  • 1Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark.

Journal of the American Chemical Society
|November 12, 2020
PubMed
まとめ
この要約は機械生成です。

研究者は新型のペプチドベースの金属有機協調ネットワークを サイクルペプチドと銅を用いて作成した. 金の表面に配置された 2次元ネットワークは 機能的な毛穴を備えており 新しい毛穴のある材料への道を開きます

さらに関連する動画

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

Published on: November 21, 2013

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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

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関連する実験動画

Last Updated: Nov 30, 2025

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
14:44

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR

Published on: December 16, 2013

9.9K
Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides
07:26

Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

Published on: November 21, 2013

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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

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科学分野:

  • 材料科学
  • 超分子化学
  • 表面化学

背景:

  • ペプチドベースのバイオミメティックナノ構造と金属有機協調ネットワークは高度なハイブリッド材料です.
  • ペプチドは構造的に多用性がありますが 金属-有機の協調ネットワークの構築には使われていません

研究 の 目的:

  • ペプチドの構成要素を金属と有機の 協調ネットワークと融合させる
  • 2次元ペプチド基の 高度な調整ネットワークを 表面で作り出す

主な方法:

  • 超高真空 (UHV) の下でAu{111}表面のサイクルダイアランと銅アダトムの共吸収.
  • サブ分子解像度のためのスキャニング・トンネル顕微鏡 (STM) と化学分析のためのX線光電子スペクトル顕微鏡 (XPS) を用いた特徴付け.

主要な成果:

  • オーダーされた2Dペプチド-金属の連携ネットワークの形成.
  • 繰り返しのモチーフの識別: 銅アダトムの1つに調整された3つのサイクルダイアランイン分子.
  • ペプチドサイドチェーンによって機能するネットワーク内の毛穴の観察.

結論:

  • 周期性ペプチドは,表面に支えられた金属有機協調ネットワークの構築に有効なリガンドとして機能する.
  • この方法は,表面上の機能化された多孔性金属有機ネットワークを作成するための一般的なアプローチを提供します.
  • 結果として得られる構造は,高度な材料設計における応用の可能性を秘めています.