%0 Journal Article %A Mondal, Subhendu %A Ghosh, Kumaresh %D 2019 %T Perimedine-linked rhodamine dye in visual sensing of Al3+, Fe3+ and Fe2+ ions in aqueous organic medium under different experimental conditions %U https://tandf.figshare.com/articles/journal_contribution/Perimedine-linked_rhodamine_dye_in_visual_sensing_of_Al_sup_3_sup_Fe_sup_3_sup_and_Fe_sup_2_sup_ions_in_aqueous_organic_medium_under_different_experimental_conditions/8428307 %R 10.6084/m9.figshare.8428307.v1 %2 https://tandf.figshare.com/ndownloader/files/15683666 %K Colorimetric sensor %K Fenton's reaction %K Perimidine labelled rhodamine %K Al3+/Fe3+/Fe2+ detection %K Fluorometric sensor %X

Perimedine labelled rhodamine dye 1 has been designed and synthesised. Metal ion binding studies of 1 have been performed in CH3CN/H2O (3:1, v/v, 10 mM Tris-HCl buffer, pH = 6.90). Compound 1 senses multiple metal ions such as Al3+, Fe3+ and Fe2+ by exhibiting turn on fluorescence and colour change (colourless to pink) under different experimental conditions. Concentration variation distinguishes Al3+ from Fe3+ ion. At low concentration (c = 1 x 10−4 M), only Al3+ ion can exhibit turn on fluorescence with sharp colour change. Sensing of Fe2+ ion through turn on fluorescence and colour change has been possible via in situ oxidation by following Fenton’s reaction.

%I Taylor & Francis