Abstract (eng)
During this diploma work on MPtSi/Ge systems 9 new compounds were synthesized (TiPtGe, VPtSi, VPtGe, NbPtGe, CrPtSi, CrPtGe, MnPtSi, MnPtGe und NiPtSi) which crystallize in TiNiSi-, MgAgAs-, Ni2In, HfRhSn- and Fe2P-structure, wich was obtained by x-ray measurements. As well 3 equiatomic compounds, which were roughly investigated (TiPtSi, ZrPtSi, ZrPtGe) were synthesized and investigated in more detail. The published data about the compounds HfPtGe and TaPtSi could be confirmed. Interesting temperature or composition dependent phase transitions in MPtGe (M = Ti, V, Mn) have been observed. The magnetic susceptibilities and the electric resistivity have been measured for all the compounds.