A selective colorimetric chemosensor for detection of Cu(II) ions in aqueous samples

Magnetic nanoparticles modified with a copper(i) complex as a novel and efficient reusable catalyst for A3 coupling leading to C–N bond formation

“…1, the observed shi in the C]N characteristic peak from 1636 cm −1 to 1616 cm −1 conrms the successful complexation of Cu ions with the immobilized BIm-Pyrim ligand on the surface of Fe 3 O 4 nanoparticles (link CuI with a bond). [47][48][49] To conrm the support of the Cu complex on the surface of MNPs, EDX analysis of the as-constructed Fe 3 O 4 -BIm-Pyrim-CuI nanocomposite was performed (Fig. 2).…”

“…1, the observed shift in the CN characteristic peak from 1636 cm −1 to 1616 cm −1 confirms the successful complexation of Cu ions with the immobilized BIm–Pyrim ligand on the surface of Fe 3 O 4 nanoparticles (link CuI with a bond). 47–49…”