関連する実験動画

Updated: Jun 24, 2026

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes
10:04

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Published on: May 26, 2014

アンモニアは水素結合をしていますか?

D D Nelson, G T Fraser, W Klemperer

    Science (New York, N.Y.)
    |December 18, 1987
    PubMed
    まとめ

    顕微鏡の研究では,アンモニア (NH3−) が強い水素結合受容体であることを明らかにしているが,陽子ドナーとして作用する証拠はほとんどない. これはNH ((3)) 相互作用に関する以前の仮定に異議を唱える.

    さらに関連する動画

    Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer07:24

    Combustion Chemistry of Fuels: Quantitative Speciation Data Obtained from an Atmospheric High-temperature Flow Reactor with Coupled Molecular-beam Mass Spectrometer

    Published on: February 19, 2018

    Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source06:39

    Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source

    Published on: October 20, 2023

    関連する概念動画

    Hydrogen Bonds00:26

    Hydrogen Bonds

    Hydrogen BondsHydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.Hydrogen Bonds Control the World!Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are...
    Covalent Bonding and Lewis Structures02:46

    Covalent Bonding and Lewis Structures

    Compared to ionic bonds, which results from the transfer of electrons between metallic and nonmetallic atoms, covalent bonds result from the mutual attraction of atoms for a “shared” pair of electrons.
    Valence Bond Theory02:45

    Valence Bond Theory

    Overview of Valence Bond Theory
    Nuclear Fusion02:45

    Nuclear Fusion

    The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
    A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
    Radical Formation: Homolysis00:54

    Radical Formation: Homolysis

    A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
    Hydrogen Bonds01:04

    Hydrogen Bonds

    A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...