Preparation, Characterization, Anti-Microbiological, Anti-Inflamatory and Larvacidal Studies of Cu+2, Co+2, and Ni+2 Chelates of Schiffs base derived from L-valine

Cardanol is obtained by vaccum distillation of roasted cashew nut shell liquid (CNSL). The preparation involves (i) convertion of cardanol into bis(3-pentadecenyl phenol)methane (BPPM) using formaldehyde in equimolar ratio in the presence of 3% hydrochloric acid solution at 90-950c for 2 hours, (ii) DFMPM on treat with epichlorohydrin followed by the action of sodium periodate, (iii) DFMPM under go condensation with L-Valine to form Schiff base ligand[2-3] and finally (iv) Schiff base complex with transition metal salts. The characterization includes elemental analysis, molar conductivity, IR Spectra, UV-visible spectra, 1H NMR spectra, elemental analysis, melting point, conductivity, metal ion intake, the nano crystalline nature of complexes were confirmed by SEM and XRD analysis. Complexes of Cu(II), Co(II)) and Ni(II) were bioactive and also used for the removal of ions from water. Studies on Schiff base complexes of metals fascinate inorganic chemists even today because of their extensive application in diverse fields, ease of synthesis and use as biological models.