Abstarct: Phosphorus ylides are important reagents in organic chemistry, especially in the synthesis of naturally occurring with biological and pharmacological activities. In this project, the new ambidentate ligand (Triphenylphosphoranylidene) methyl2-phenylacetate was prepared by the reaction of bromomethyl2-phenylacetate with triphenylphosphine. then this phosphorus ligand inreaction with halides Hg(II), and the new dimeric complexes were prepared. after that by reaction of this dimeric complexes with shifbaxse ligand (E)-4-((2-hydroxybenzylidene)amino)-3-(3-nitrophenyl)-1H-1,2,4-triazole-5(4H)-thione (L), ethylenediamine, triphenylphosphin, the new compounds were prepared. Structure of newly synthesized compound were characterized and investigated by means of IR ,¹ H-NMR ,³¹ P-NMR data.