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quinoid n.【化學】醌式,醌型。

quinoidine

When the ph of the solution was lower than 4 , the structure of dab changes from an azo type to a quinoid type . this change was studied by sers and the reversibility of transformation was found 當溶液ph值小于4時,由于質子化, dab分子將從偶氮型結構轉變為醌型結構,本章利用sers技術,研究了其結構的這種變化,并且發現這種結構的變化是可以逆轉的。

A condensation to quinoid systems occurs . 發生了醌型體系的縮合反應。