Three monomeric compounds containing the dipyrimidine-2-thiolategold(I) anion

Abstract Three complexes containing the dipyrimidine-2-thiolategold(I) anion, [Au(2-pymS) 2 ]-, (2-pymSH = pyrimidine-2-thione), Na[Au(2-pymS) 2 ] ( 1 ), N(C 2 H 5 ) 4 [Au(2-pymS) 2 ] ( 2 ), and H[Au(2-pymS) 2 ] ( 3 ), have been synthesized and characterized by spectroscopy ( 1 H NMR, IR, and ESI –MS) and by X-ray crystallography. The monomeric compounds are easily solubilized in water and in various polar organic solvents. The complex anion shows a linear S Au S geometry in all three compounds, but the counter cations create a different space group for each compound and also deter Au Au interactions.