醋根離子 acetate ion 有甚麼作用?

The acetate anion, [C2H3O2]−, is a carboxylate and is the conjugate base of acetic acid. The acetate ion is formed by the deprotonation of acetic acid:

CH3COOH ⇌ CH3COO− + H+
Structures






圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Acetate-anion-3D-vdW.png/120px-Acetate-anion-3D-vdW.png


space-filling model of the acetate anion



圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Acetate-anion-3D-balls.png/120px-Acetate-anion-3D-balls.png


ball-and-stick model of the acetate anion



圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Acetate-anion-2D.png/120px-Acetate-anion-2D.png


structural formula of the acetate anion



圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/7/7b/Acetate-anion-resonance-hybrid-2D-skeletal.png/120px-Acetate-anion-resonance-hybrid-2D-skeletal.png


resonance hybrid of the acetate anion




圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Acetate-resonance-2D-skeletal.png/120px-Acetate-resonance-2D-skeletal.png


canonical forms of the acetate anion



圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/a/af/Acetate-anion-canonical-form-2D-skeletal.png/120px-Acetate-anion-canonical-form-2D-skeletal.png


skeletal formula of the acetate anion



圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Acetate-ester-2D-skeletal.png/120px-Acetate-ester-2D-skeletal.png


general skeletal structure of an acetate ester



圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/0/01/Acetyl-group-2D-skeletal.png/119px-Acetyl-group-2D-skeletal.png


skeletal structure of the acetyl group

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