%0 Journal Article %T Synthesis of Novel Bis-Benzimidazolyl Podands: A new Chemosensor for Cu2+ %J Organic Chemistry Research %I Iranian Chemical Society %Z 2383-242X %A Noroozi-Shad, Nazanin %A Eshghi, Hossein %A Sabet-Sarvestani, Hossein %D 2017 %\ 10/01/2017 %V 3 %N 2 %P 126-131 %! Synthesis of Novel Bis-Benzimidazolyl Podands: A new Chemosensor for Cu2+ %K Chemosensor %K Fluorescence %K UV-Vis spectroscopy %K Cu2+ %R 10.22036/org.chem..2017.46875.1048 %X Some new compounds based on bis-benzimidazole moieties have been synthesized and characterized by IR and NMR spectroscopies. The ability of 3a in transition metal cation sensing such as Co2+, Ni2+, Zn2+, Mn2+, Fe2+ and Cu2+ have been investigated by Uv-vis and fluorescence spectroscopy in methanol solvent. The complexation constants and complex stoichiometry of Cu2+ have been determined. The experimental result show that 3a exhibits high selectivity toward Cu2+ cation in a 1:1 complex stoichiometry. The absorption bond and the fluorescence intensity have been increased by addition of successive amount of Cu2+ solution in methanol. Therefore, these results demonstrate that, the compound can be used as a sensor to detect Cu2+ cation via absorption and emission spectroscopy. %U https://www.orgchemres.org/article_51703_c48e534c9c3f75b348564dc21d4f2a57.pdf