New chromoionophores based on indoaniline dyes containing calix[4]arene
摘要:
A new set of chromoionophores having indoaniline and calix[4]arene segments have been prepared, the ethylacetate derivative of which shows a high selectivity for Na+. Sodium ion binding induces a bathochromic shift in the absorption spectrum of this chromoionophore leading to the suggestion that this class of compounds could have potential use as an optical sensor for Na+ detection.