227960-37-4Relevant articles and documents
Synthesis and structural studies of molybdenum and palladium complexes of 1,5-diaza-3,7-diphosphacyclooctane ligands
Kane, John C.,Wong, Edward H.,Yap, Glenn P.A.,Rheingold, Arnold L.
, p. 1183 - 1188 (1999)
1,5-Diaza-3,7-diphosphacyclooctanes form 1:1 complexes with the metal fragments Mo(CO)4 and PdCl2. Two of these products along with a parent heterocycle have been structurally characterized. The [P(Ph)CH2N(2-pyridyl)CH2]2 ring is found in a crown conformation while its cis-Mo(CO)4 complex adopts a chair-boat ligand conformation. On the other hand, the cis-PdCl2 complex of [P(Ph)CH2N(Bz)CH2]2 is found to retain a highly flattened crown ligand conformation. Unlike the related eight-membered heterocycle 1,3,5,7-tetraoxa-2,4,6,8-tetraphosphacyclooctane which behaves as a tetradentate ligand chelating homo- or hetero-bimetallics, coordination to a second metal by these complexes was not realized.