DIRECT SYNTHESIS OF LEAD(II) COMPLEXES WITH TRIETHANOLAMINE USING LEAD(II) OXIDE AS STARTING MATERIAL

A number of lead(Ir) complexes containing triethanolamine (L) is repor ted. The compounds were identified and characterized by chemical analy ses and IR investigations. The crystal structure of bis(triethanolamin e)lead(II) acetate was determined by X-ray crystallographic analysis. The compound crystallizes in space group C2/c with a=10.373(2), b=16.0 79(2), c=13.707(3) Angstrom, beta = 99.36(2)degrees, V= 2255.7 Angstro m(3), Z = 4, d(calculated) = 1.84g cm(-3) The structure was refined by least-squares methods to a final value of the R of 0.025 for 3185 ref lections with I> 3 sigma(1). The complex consists of eight coordinated [PbL(2)](2+) cations and two CH3COO- anions joined together by hydrog en bonds between the oxygen atoms of the carboxyl groups and the hydro xyl hydrogens of ligands. The lead atom lies on a two-fold rotation ax is and the structure of the coordination polyhedron is a distorted tri gonododecahedron.