naphthyl

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

实验结果表明，偶氮团的引入改善了8-羟喹啉的生色能力，并且在乙腈溶液中随着由苯变萘和蒽，合物的吸收光谱发生红移。