Citation: Chuan Feng CHEN, Qi Yu ZHENG, Zhi Tang HUANG. A New Chromogenic Diester-calix [4]crown Receptor for Ca²⁺[J]. Chinese Chemical Letters, ;1998, 9(11): 993-996. shu

A New Chromogenic Diester-calix [4]crown Receptor for Ca²⁺

Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080

Received Date: 29 May 1998

Fund Project: This work was supported by the National Natural Science Foundation of China.

A diester-calix [4]crown-4-ether bearing mono (azophenol) moiety shows a larger spectral change toward Ca²⁺ than other alkali and alkaline earth cations.
- Chromogenic receptor,
- diester-calix [4]crown-4-ether, Ca²⁺-selective.
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