69108-02-7Relevant academic research and scientific papers
Some metal complexes containing diphenylphosphinoacetic acid as a P-bonded neutral ligand. Crystal structures of [AuCl(Ph2PCH2CO2H)] and trans- [PdCl2(Ph2PCH2CO2H) 2]0.33H2O · 0.33C2H5OH
Edwards, Dennis A.,Mahon, Mary F.,Paget, Timothy J.
, p. 4121 - 4130 (2008/10/09)
Diphenylphosphinoacetic acid (HA) reacts as a neutral P-donor ligand with a variety of transition metal compounds to generate the new complexes [CuCl(HA)x] (x=1 or 3), trans-[PdCl2(HA)2], cis-[PtCl2(HA)2], [AuCl(HA)] and cis-[Mo(CO)4(HA)2]. The crystal structure of [AuCl(HA)] involves a linear Cl-Au-P arrangement [179.0(1)°], neighbouring molecules forming hydrogen-bonded dimers in the lattice array. The hydrogen-bonding is of the planar type commonly found in free carboxylic acids with intermolecularly bonded pairs of [AuCl(HA)] molecules being related by an inversion centre. Recrystallisation of trans-[PdCl2(HA)2] from ethanol yields crystals of the solvate trans-[PdCl2(HA)2] · 0.33H2O · 0.33C2H5OH. The asymmetric unit contains 1.5[PdCl2(HA)2] molecules along with water and ethanol molecules exhibiting only half site occupancy. For every three [PdCl2(HA)2] molecules two are hydrogen-bonded to neighbours using carboxylic acid groups to form chains. The third molecule differs in that hydrogen-bonding occurs between one oxygen of a carboxylic acid group and the lattice water, the oxygen of which further hydrogen-bonds to the lattice ethanol.
