Some Thermogravimetric and Gas Chromatographic Studies of Copper (II) and Nickel (II) Complexes of meso and DL-Bis(Acetylacetone) Stilbenediimine PDF

Keywords

copper, nickel, chromatography

Abstract

Bis (acetylacetone) meso-stilbenediimine and bis (acetylacetone) DL- stilbenediimine form colored copper (II) and nickel (II) chelates. Copper (II) complexes are not sensitive spectrophotometrically, but the nickel complexes show reasonable sensitivity. Similarly TG and DTG studies indicate that nickel complexes are relatively more volatile and thermally stable than corresponding copper chelates. The metal complexes can easily be gas chromatographed from OV101, 3% on chromosorb (80-100 mesh size) column. Calibration range, detection limits and resolution of copper and nickel complexes are reported. The nickel complexes also show higher sensitivity with lower detection at ng levels than corresponding copper complexes