ZUR TRANSFORMATION DES P4-TETRAEDERS DURCH NI-KOMPLEXE

摘要: The Transformation Pathway of the P4 Tetrahedron by Ni Complexes The thermal reaction [Cp*NiCO]2 with white phosphorus in presence [Cr(CO)5(thf)] at 70°C produces bent cyclo-P4 ligand complex 4 and Ni2P4 prismane 5. However under photochemical conditions additional products such as cyclo-P3 complexes 6 Ni2P2 tetrahedrane 7 are also formed. 5 were characterized NMR, IR, mass spectroscopy well X-ray structure analysis. structures these experimentals verification conversion into or cubane analog 12 gives evidence for a transformation pathway starting from tetrahedron via possible bicyclotetraphosphane intermediate to give 4. From several pathways possible; main route is form Photochemically P3/P1 fragmentation occurs, albeit low yield, 6.