The chromogenic responding ability increases as the substituent changes from phenyl to naphthyl or anthryl.

实验结表明，偶氮引入改善了8-羟喹啉生色能力，并且在乙腈溶液中随着取代由苯变为萘和蒽时，化合物吸收光谱发生移。

Put forward the theory about the apparent hathochromic or hypsochromic shift on absorption peak caused by the constructive and the destructive interferences.

提出相长干扰和相消干扰引起吸收峰波长表观移或紫移理论,并全面探讨吸收峰波长移动原因、影响及不消除方法。