SYNTHESIS AND SPECTRA STUDIES ON CHROMIUM COPPER AND CADMIUM COMPLEXES OF (TETRAMETHYLDIBENZOTETRA AZA {16}ANNULENE [L])

In high dilution method and in ethanol solution has been reacted two moles (o – phenylendiamin ) with tow moles (2,5 – hexandion) to yield macrocyelic ligand type n4 . this ligand ( l ) has been reacted with some metal ion to product metal complexes (m l ) where m = cr+3, cu+2and cd+2. the metal complexes were characterized by elemental analysis, (c.h.n), molar conductivities, i.r spectra, uv-vis., hplc, and atomic absorption. from the above data the proposed molecular structure for (ml) is octahedral, and trigonal bipyrimed