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- W4306175068 abstract "Naked-eye colored chemodosimeters 15,35,55,75-tetrakis((2-hydroxy-5-nitrophenyl)diazenyl)-1,3,5,7(1,3)-tetrabenzenacyclooctaphan-14,16,34,36,54,56,74,76-octaol (A1) and 15,35,55,75-tetrakis((5-chloro-2-hydroxyphenyl)diazenyl)-1,3,5,7(1,3)-tetrabenzenacyclooctaphan-14,16,34,36,54,56,74,76-octaol (A2) were synthesized and characterized. Both compounds showed high sensitivity towards heavy transition metal ions but compound A1 exhibited more selectivity towards the Cu2+ ions and A2 with Co2+ and Ni2+ ions in dimethyl sulfoxide (DMSO) solution. More bathochromic shift was observed in their absorbance values on interaction with these metal ions. The significant changes in the color could also be used for detection of heavy metal ions simply by naked-eye with a detection limit up to 0.01 ppm. Furthermore, a paper test strip method was also developed for the rapid monitoring of Cu2+, Co2+ and Ni2+ metal ions friendly eco-environment. Electrochemical analysis of free and metal chelated ligands demonstrated the differentiation behavior for copper and cobalt at +0.4 eV in CV curves from other metals which confirmed the coordination of probes toward Cu2+ and Co2+ ions." @default.
- W4306175068 created "2022-10-14" @default.
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- W4306175068 date "2022-12-01" @default.
- W4306175068 modified "2023-09-22" @default.
- W4306175068 title "Synthesis and optical study of highly sensitive calix [4] based sensors for heavy metal ions detection probes" @default.
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- W4306175068 doi "https://doi.org/10.1016/j.cdc.2022.100956" @default.
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