Reaction of C(NMe2)(4) with Ni(CO)(4) - Syntheses and structures of [C(NMe2)(3)][(CO)(3)NiC(O)NMe2], [C(NMe2)(3)](2)[Ni-5(CO)(12)], and [C(NMe2)(3)](3)[Ni-6(CO)(12)][O2CNMe2]

摘要

The reaction of C(NMe2)(4) with Ni(CO)(4) in THF produces the carbamoyl complex [C(NMe2)(3)][(CO)(3)NiC(O)NMe2] (1); side products are the purple cluster compound [C(NMe2)(3)](2)[Ni-5(CO)(12)] (.) THF (2 (.) THF) and the red cocristallization product [C(NMe2)(3)](3)[Ni-6(CO)(12)][O2CNMe2] (3). All compounds were studied by X-ray diffraction analyses. The cations of 3 are all disordered but not those of 1 and 2. The unit cell of 1 contains two crystallographically in dependent anions (I and II) which differ in the dihedral angle between the plane of the carbamoyl ligand and the plane defined by the atoms C-Carbamoyl-Ni-CO amounting 0 degrees in the anion I and 18 degrees in the anion II. [References: 26]