Synthesis and Characterization of Some Ni(II) and Cu(II) Complexes with Carboxymethyl Chitosan

This research concerns the synthesis of two carboxymethyl chitosan (CMCs) complexes with Cu(II) and Ni(II). The synthesized were characterized using (FT-IR) showing absorption peaks in region (566 cm-1) which belongs to bonds [Cu(CMCs)2] (580 Ni(II) [Ni(CMCs)2]. Molar conductivity was determined for both [Ni(CMCs)2] results showed that these non-electrolytes . UV-visible has been also recorded complex solution (0.50 x 10-3M) is absorbed at (295 nm). It proposed possess a square planar structure. Whereas [Ni(CMCS)2] (290 nm) supposing structure this tetrahedral. absorbance can be attributed (π→π*).