ISSN:
0009-2940
Keywords:
Px ligands
;
Nickel complexes
;
Bent cyclo-P4 complex
;
Ni2P4 distorted prismane
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
The Transformation Pathway of the P4 Tetrahedron by Ni Complexes
Notes:
The thermal reaction of [Cp*NiCO]2 with white phosphorus in the presence of [Cr(CO)5(thf)] at 70°C produces the bent cyclo-P4 ligand complex 4 and the Ni2P4 prismane 5. However under photochemical conditions additional products such as cyclo-P3 complexes 6 and the Ni2P2 tetrahedrane 7 are also formed. 4 and 5 were characterized by NMR, IR, and mass spectroscopy as well as by X-ray structure analysis. The structures of these products and the experimentals verification of the conversion of 4 into 5 or into 6 and 7 as well as the cubane analog 12 gives evidence for a transformation pathway starting from P4 tetrahedron via a possible bicyclotetraphosphane intermediate to give the bent P4 complex 4. From 4 several pathways are possible; the main route is to form the Ni2P4 prismane 5. Photochemically a P3/P1 fragmentation also occurs, albeit in low yield, to give 5 and 6.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19961291026
