オプティカル・リミティング・パフォーマンスを有するオルガノチン・キャプテッド型カルコゲニドメタレート超分子
Ming-Bu Luo1, Heng-Dong Lai1, Shan-Lin Huang1
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
Journal of the American Chemical Society
|March 5, 2024
まとめ
研究者達はこれまでで最大の オーガノメタリック超四面体群を合成し その大きさと構造を制御しました これらの新しいクラスターは 調節可能な非線形光学特性を示し 先進的な材料への道を開きます
科学分野:
- 無機化学
- 材料科学
- ナノテクノロジー
背景:
- 調整可能な性質を持つ結晶のクラスターは 決定的ですが 設計するのは困難です
- 合理的な設計の鍵となるのは 構造の進化と構造-性質の関係です
研究 の 目的:
- オーガノチン基の硫酸メタラート超四面体群を用意する.
- クラスターのサイズ,構成,幾何学的な構成を制御します.
- アリルスタナンのクラスター形成と性質の役割を調査する.
主な方法:
- 混合金属とオルガノチンによる低温合成 (60~120°C)
- クラスターのサイズと構造を制御するための金属組成.
- 周辺リガンドと幾何学的多様性を調節するためにアリルスタナンのアプローチを使用する.
主要な成果:
- これまでに報告された最大級の有機金属超四面体群を合成し,サイズは8から35単位まで.
- P1,T3,T4,TP2およびT5タイプを含む変数クラスター構成を達成しました.
- シン-オクシスルファイドのクラスターが形成され 独特の断片化されたクラスターが テトラヘッドの対称性を破る
- クラスターの特性に基づく,調整可能な第三次非線形光学 (NLO) の行動を示した.
結論:
- アリルスタナンのアプローチは,有機金属のクラスター化学と構造の多様性を拡大するために重要です.
- 合成されたクラスターは高度に溶解し,安定し,調節可能なNLO特性を有する.
- これらの発見は,カスタマイズされた光学機能を持つ先進的な材料の開発に道を開きます.
さらに関連する動画
関連する概念動画
Stereoisomerism
11.9K
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...
11.9K
Valence Bond Theory
8.5K
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...
8.5K
Properties of Organometallic Compounds
994
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.
994
Crystal Field Theory - Tetrahedral and Square Planar Complexes
42.5K
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,...
42.5K
Colors and Magnetism
11.7K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.7K
Predicting Molecular Geometry
34.3K
VSEPR Theory for Determination of Electron Pair Geometries
34.3K

![The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI 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)
