The formation of [RuCl(p-cymene)(Me2HPz)(PPh2OR)]Cl (Me2HPz=3, 5-dimethylpyrazole; R=H, Me and p-Tol) complexes from the cleavage of the P–N bond of a P-coordinated P(Me2Pz)Ph2 ligand by ROH molecules in a ruthenium(II) complex. Crystal structure of [RuCl

The complex [RuCl2(p-cymene)]2 reacts with 1-(3,5-dimethyl)pyrazolyldiphenylphosphine (P(Me2Pz)Ph2) to give the complex RuCl2(p-cymene)(P(Me2Pz)Ph2). This compound reacts with ROH molecules (R=H, Me and p-Tol) to give [RuCl(p-cymene)(Me2HPz)(PPh2OR)]Cl (R=H, Me and p-Tol) complexes, which contain both Me2HPz and PPh2OR coordinated molecules.