Synthesis and characterization of two novel potentially tetradentate chelating O^N^C ligands： 2-（2-hydroxyphenyl）-6-p-tolylisonicotinic acid and 2-（2-hydroxyphenyl）-6-p-tolylisonicotinic acid ethyl ester were firstly reported.
Zhan Xian LIMei Gong FANWen Fu FUMing Ming YUXi Juan ZHAODe Hui WANG
