| 词汇 | zwitterion |
| 释义 | BETA Examples of zwitterionzwitterion isn’t in the Cambridge Dictionary yet. You can help! The glycine zwitterion was observed to be stable in the aqueous solution and this has also been found in experimental studies. This method was applied to geometry optimization of the glycine zwitterion in aqueous solution. Structure optimization via free energy gradient method : application to glycine zwitterion in aqueous solution. The entire molecule has a net neutral charge and is a zwitterion, with the exception of amino acids with basic or acidic side chains. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This difference is attributed to them being dipolar ionic zwitterion compounds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Subsequent to this, radiationless decay leads to a zwitterion ground state. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The molecule tends to exist as a zwitterion where a phosphonic hydrogen dissociates and joins the amine group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The structures given below are standard chemical structures, not the typical zwitterion forms that exist in aqueous solutions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A betaine thus may be a specific type of zwitterion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Neutron diffraction measurements show that solid sulfamic acid exists as a zwitterion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The presence of an acid facilitates the elimination reaction in the zwitterion by proton transfer which becomes much faster and no longer rate determining. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sulfonation of aniline produces p-aminobenzenesulfonic acid or sulfanilic acid which is a zwitterion with an unusual high melting point. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the presence of a strong electrophile, such as an aldehyde, the zwitterion will react with the carbonyl faster than protonating. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In fact in 2002 the compound was found to be more stable and to exist as the zwitterion after a proton transfer. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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