Phosphaniminato-Komplexe von Nickel(II) mit Heterocubanstruktur
摘要:
The phosphoraneiminato complexes [NiBr(NPR3)](4) (R = CH3, C2H5) and [NiI(NPEt3)](4) were obtained from NiBr2 and NiI2, respectively, with excess Me3SiNPR3 in the melt (R = CH3, C2H5) in the presence of sodium fluoride. They form dark-green, moisture sensitive crystalline powders. They were characterized by IR spectroscopy, mass spectrometry, magnetic behaviour as well as by crystal structure analyses. The compounds possess heterocubane structures, in which the nickel atoms are linked via mu(3)-N-bridges of the phosphoraneiminato groups.