STUDIES ON HETEROMETALLIC BINUCLEAR ALDIMINE DERIVATIVES OF BORON(III) AND ALUMINUM(III)

Synthetic and spectroscopic features of some heterometallic binuclear organoborane derivatives with monofunctional bidentate thiosemicarbazones and semicarbazones derived from the condensation of 2-pyridine carbaldehyde, 2-furfuraldehyde, 2-thiophenecarbaldehyde, 2-cinnamaldehyde and 3-indolecarbaldehyde with thiosemicarbazide and semicarbazide hydrochloride have been carried out in 1:1:1 molar ratio. The resulting derivatives of the types [GRAPHICS] and [GRAPHICS] (where TSCz-1 and SCz-1 represent the anions of thiosemicarbazone and semicarbazone) are coloured solids and non-electrolytic in nature. On the basis of analytical data, IR, H-1, C-13 and B-11 NMR spectral studies, a tricoordinated environment for boron and a tetra-coordinated environment around aluminum may be assigned to the resulting binuclear complexes.