N,N-DISUBSTITUTED N'-FERROCENOYL THIOUREA S AS BIDENTATE LIGANDS FOR TRANSITION-METAL IONS - CRYSTAL-STRUCTURE OF S-(N,N-DIETHYL-N'-FERROCENOYLTHIOUREATO)NICKEL(II)

N,N-diethyl-N'-ferrocenoyl-thiourea and N-(morpholino-thiocarbonyl)fer rocenecarboxylic amide have been prepared by the reaction of ferroceno yl chloride with potassium thiocyanate and the respective amine in dry acetone. These bidentate ligands yield neutral heterometallic complex es with Ni(II), Cu(II), Mn(II) and Co(III). The dark brown air stable crystals of s-(N,N-diethyl-N'-ferrocenoylthioureato)nickel(II) were ch aracterized by X-ray structure determination. Lattice dimensions: a = 1870.9(1), b = 1161.5(1), c = 1491.4(1)pm; space group Pca2(1), Z = 4, R = 0.030 for 5707 observed reflections.