| resonance |
Resonance structures are diagrammatic tools in organic chemistry to symbolize resonant bonds between atoms in molecules. Essentially, these resonance bonds are the movement of "delocalized" electrons through the molecule. Resonance structures all have the same chemical formula and same general shape. However, unshared pairs of electrons and electron pairs making double bonds will often move around between bonds and molecules. ...
Ãâó: en.wikipedia.org/wiki/Resonance_(chemistry)
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| resonance |
In quantum field theory, resonance is an unstable particle/bound state. It is characterized by a complex pole off the real line in the S-matrix (which happens to be analytic). A sharp resonance is a resonance with a sharp peak in the S-matrix (which corresponds to a long lifetime compared to the reciprocal of its mass) while a broad resonance is a resonance with a spread out peak (which corresponds to a short lifetime relative to the reciprocal of its mass). ...
Ãâó: en.wikipedia.org/wiki/Resonance_(quantum_field_the...
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| resonant |
In physics, resonance is the tendency of a system to absorb more oscillatory energy when the frequency of the oscillations matches the system's natural frequency of vibration (its resonant frequency) than it does at other frequencies. ...
Ãâó: en.wikipedia.org/wiki/Resonant
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| resorcin |
Resorcin (meta-dioxybenzene) or resorcinol, C6H4(OH)2, one of the dihydric phenols. It is obtained on fusing many resins (galbanum, asafoetida, etc.) with caustic potash, or by the distillation of Brazil-wood extract. It may be prepared synthetically by fusing meta-iodophenol, phenol meta-sulphonic acid, and benzene meta-disulphonic acid with potash; by the action of nitrous acid on meta-aminophenol; or by the action of 10% hydrochloric acid on meta-phenyiene diamine (J. Meyer, Ber. ...
Ãâó: en.wikipedia.org/wiki/Resorcin
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| resorcinol |
Benzenediols or dihydroxybenzenes are aromatic chemical compounds in which two hydroxyl groups are substituted onto a benzene ring. Because they have at least one hydroxyl group covalently bonded directly to a carbon atom in a benzene ring, they are in a class of organic compounds called phenols. There are three isomers of bezenediol, each of which has its own common or non-systematic name as shown in the mini-table below. ...
Ãâó: en.wikipedia.org/wiki/Resorcinol
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