2-propenal semicarbazone (FASC) and CO ll, Ni n, CuII, Zn H and Cd I! chlorides or bromides gave the complexes: [M(FASC)eX2], [M(FASC)2]X2 or [M(FASC)X2] which were characterized starting from elemental analysis and molar conductances. Their structures are discussed on the basis of magnetic moments, infrared and electronic spectra ; in addition, the NMR data are used in the case of Zn H and Cd u species. The main cell parameters are given using X-ray diffraction powder diagrams.