77059-69-9Relevant academic research and scientific papers
Metal complexes containing diastereoisomers and enantiomers of o-phenylenebis(methylphenylarsine) and its phosphorus analogue. 1. Stereochemistry and dynamic behavior of square-planar and square-pyramidal complexes of bivalent nickel
Roberts, Nicholas K.,Wild, Stanley Bruce
, p. 1892 - 1899 (2008/10/08)
A comparative investigation of the properties of square-planar and square-pyramidal bis(bidentate)nickel(II) complexes containing the internal diastereoisomers and optically active forms of o-phenylenebis(methylphenylarsine) and its phosphorus analogue has been undertaken. The di(tertiary arsine) yields stable complexes which are labile with respect to bidentate ligand redistribution between different metal centers, but the di(tertiary phosphine) derivatives are inert in this respect. The square-pyramidal chloro complexes of both ligands undergo rapid site exchange of their axial chloro ligands under ambient conditions. Variable-temperature 1H NMR studies on suitable derivatives indicate that this proceeds by internal isomerization of the chelate rings and by intermolecular exchange of the chloro ligand between sterically compatible complex ions.
