INTRAMOLECULAR HYDROGEN BONDING——Ⅱ. INTRAMOLECULAR HYDROGEN BONDING AND TAUTOMERISM IN o-PHENYLAZOPHENOLS
LI SHU-SEN, FENG HAN-ZHEN, JIN MU-JUN, CHEN YAO-HUAN, SHENG HUAI-YU
Acta Chimica Sinica . 1982, (7): 577 -587 .