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Updated: Jul 5, 2026

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
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不对称的离子共价有机框架膜具有可调的图灵图案,通过离子调节策略准备

Jingcheng Du1, Jian Guan1, Ali A Al-Thuraya1

  • 1State Key Laboratory of Advanced Environmental Technology, Department of Environmental Science and Engineering, University of Science and Technology of China, Anhui, China.

Nature communications
|September 30, 2025
PubMed
概括

研究人员开发了一种新方法来创建强大的晶体离子共价有机框架膜 (ICOFMs). 这一突破克服了机械强度和结晶度的局限性,使分离和电子领域的先进应用成为可能.

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Molecular Shapes01:18

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Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.Two regions of electron density in a diatomic...
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Molecular Shape and Polarity

Dipole Moment of a Molecule
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VSEPR Theory

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MO Theory and Covalent Bonding

The molecular orbital theory describes the distribution of electrons in molecules in a manner similar to the distribution of electrons in atomic orbitals. The region of space in which a valence electron in a molecule is likely to be found is called a molecular orbital. Mathematically, the linear combination of atomic orbitals (LCAO) generates molecular orbitals. Combinations of in-phase atomic orbital wave functions result in regions with a high probability of electron density, while...
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[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement

The Cope rearrangement is classified as a [3,3] sigmatropic shift in 1,5-dienes, leading to a more stable, isomeric 1,5-diene. The reaction involves a concerted movement of six electrons, four from two π bonds and two from a σ bond, via an energetically favorable chair-like transition state.