Conversion of distorted tetrahedral bis(benzyldiphenylphosphine)dibromonickel(II) into a pure planar complex by high pressure

Abstract

Electronic and far-i.r. spectral evidence for a structural change occurring in the solid state between the distorted tetrahedral and planar forms of Ni(Ph₂PCH₂-Ph)₂Br₂, produced by high external pressure, has been obtained; this is the first reported spin-pairing occurring for solid nickel complexes, and conversion from a distorted tetrahedral into a planar structure with an increase in pressure.