Determination of over-all protonation constants for tetraphenylporphyrin and its derivatives by spectrometry
YAN XIAOCI;ZHOU JUNTING;LUO MINGDAO;QU SONGSHENG;HUANG SUQIU;ZENG FANQING;ZHANG YONGJUN
Acta Chimica Sinica . 1993, (10): 994 -998 .