Spectrophotometric Determination of Chromium(III) with 2-Hydroxybenzaldiminoglycine

A spectrophotometric method employing 2-hydroxybenzaldiminoglycine (HBIG) is proposed for the determination of chromium(III). The results of the determinations are compared with the standard diphenyl carbazide method. The presently developed method is direct, simple, rapid, selective, sensitive and precise.

Structural studies on some metal complexes of embelin

This thesis deals with the studies on the synthesis and characterisation of the complexes of embelin with manganese (II), cobalt(II), nickel (II), copper (II), zinc (II), cadmium (II), chromium (III), iron (III) lanthanum(III), praseodymium (III) neodymium (III) Samarium (III), gadolinium (III) dysprosium (III), yttrium (III) thorium (IV) and uranium (VI). Elemental analysis as well as spectral, thermal and magnetic data were used to ascertain the composition of the complexes and to establish the structures of the metal complexes. Wherever possible, the electronic spectra and magnetic data were used to predict the stereochemistry of the complexes.The thesis is divided into four chapters.