Transition metal ion selective ortho-ester diazophenylcalix[4]arene.
New chromogenic dizophenylcalix[4]arene 1 showing selective color change to transition metal ions over other alkaline and alkaline earth metal ions has been prepared in the cone conformation and tested for its usefulness.
Kim
Tae Hyun
TH
School of Chemistry, Seoul National University, Seoul 151-747, Republic of Korea.
Kim
Su Ho
SH
Tan
Le Van
le V
Seo
Yu Jin
YJ
Park
Sun Young
SY
Kim
Hasuck
H
Kim
Jong Seung
JS