- Li+ selective podand-type fluoroionophore based on a diphenyl sulfoxide derivative bearing two pyrene groups
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New podand-type fluoroionophores having two pyrene moieties: 2,2′-bis(1-pyrenylacetyloxy)diphenyl sulfide (3), 2,2-bis(1- pyrenylacetyloxy)diphenyl sulfoxide (4), and 2,2-bis(1-pyrenylacetyloxy) diphenyl sulfone (5), have been synthesized by connecting two 1-pyrenecarbonylmethyl groups with the two hydroxy groups of 2,2-dihydroxydiphenyl sulfide, sulfoxide, and sulfone, respectively. Their complexation behavior toward alkali metal ions was examined by fluorescence spectroscopy. Among these fluoroionophores, compound 4, having a sulfinyl group, showed high selectivity toward Li+.
- Nishimura, Yukihiro,Takemura, Tetsuo,Arai, Sadao
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scheme or table
p. 6844 - 6857
(2011/10/31)
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- COATING COMPOSITION
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Developable bottom antireflective coating compositions are provided.
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