SYNTHESIS, PROPERTIES AND STRUCTURE OF SOME LANTHANIDE NITRATE BINUCLEAR COMPLEX WITH N,N,N',N'-TETRABUTYLADIPAMIDE [LN(2)MU-(BU(2)NCO(CH2)(4)CONBU(2))(BU(2)NCO(CH2)(4)CONBU(2))(2)(NO3)(6)]

Some lanthanide nitrate complexes with N,N,N',N'-tetrabutyladipamide (TBAA) have been prepared. These complexes with the general formula [Ln(2) mu-(TBAA) (TBAA)(2)(NO3)(6)] have been characterized by means of elemental analysis, IR spectra and conductance measurement. The crystal and molecular structure of [Gd-2 mu-(TBAA) (TBAA)(2)(NO3)(6)] has been determined by single-crystal X-ray diffraction. This complex contains a binuclear molecule with three organic ligands. Two carbonyls of one organic ligand join two Gd(III) and each Gd(III) is coordinated through two carbonyls of one organic ligand. The six nitrates are all bidentate. Each Gd(III) is coordinated by nine oxygen atoms which form a distorted tricapped trigonal prism.