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  2. Barium peroxide - Wikipedia

    en.wikipedia.org/wiki/Barium_peroxide

    Barium peroxide is an inorganic compound with the formula Ba O 2.This white solid (gray when impure) is one of the most common inorganic peroxides, and it was the first peroxide compound discovered.

  3. Diamagnetism - Wikipedia

    en.wikipedia.org/wiki/Diamagnetism

    Diamagnetism is a quantum mechanical effect that occurs in all materials; when it is the only contribution to the magnetism, the material is called diamagnetic. In paramagnetic and ferromagnetic substances, the weak diamagnetic force is overcome by the attractive force of magnetic dipoles in the material.

  4. Magnetochemistry - Wikipedia

    en.wikipedia.org/wiki/Magnetochemistry

    This means that the effects are additive, and a table of "diamagnetic contributions", or Pascal's constants, can be put together. [6] [7] [8] With paramagnetic compounds the observed susceptibility can be adjusted by adding to it the so-called diamagnetic correction, which is the diamagnetic susceptibility calculated with the values from the ...

  5. Magnetic susceptibility - Wikipedia

    en.wikipedia.org/wiki/Magnetic_susceptibility

    Magnetic susceptibility indicates whether a material is attracted into or repelled out of a magnetic field. Paramagnetic materials align with the applied field and are attracted to regions of greater magnetic field. Diamagnetic materials are anti-aligned and are pushed away, toward regions of lower magnetic fields.

  6. Paramagnetism - Wikipedia

    en.wikipedia.org/wiki/Paramagnetism

    The element hydrogen is virtually never called 'paramagnetic' because the monatomic gas is stable only at extremely high temperature; H atoms combine to form molecular H 2 and in so doing, the magnetic moments are lost (quenched), because of the spins pair. Hydrogen is therefore diamagnetic and the same holds true for many other elements ...

  7. Spin isomers of hydrogen - Wikipedia

    en.wikipedia.org/wiki/Spin_isomers_of_hydrogen

    The ortho and para forms of water have recently been isolated. Para water was found to be 25% more reactive for a proton-transfer reaction. [29] [30] Molecular oxygen (O 2) also exists in three lower-energy triplet states and one singlet state, as ground-state paramagnetic triplet oxygen and energized highly reactive diamagnetic singlet oxygen.

  8. Brillouin and Langevin functions - Wikipedia

    en.wikipedia.org/wiki/Brillouin_and_Langevin...

    The energy for each magnetic moment will be E = − μ H cos ⁡ θ , {\displaystyle E=-\mu H\cos \theta ,} where θ {\displaystyle \theta } is the angle between the magnetic moment and the magnetic field (which we take to be pointing in the z {\displaystyle z} coordinate.)

  9. Antiaromaticity - Wikipedia

    en.wikipedia.org/wiki/Antiaromaticity

    To avoid the instability of antiaromaticity, molecules may change shape, becoming non-planar and therefore breaking some of the π interactions. In contrast to the diamagnetic ring current present in aromatic compounds, antiaromatic compounds have a paramagnetic ring current, which can be observed by NMR spectroscopy.