Transition Metal Complexes of α-Keto Stabilized Sulfonium Ylides: Linear in Contrast to Bridging Structure in Silver(I) Complexes

GRAPHICAL ABSTRACT

Abstract

The reactions of α-keto stabilized sulfonium ylide (Me)₂SCHC(O)C₆H₄‒m‒NO₂ (Y₁) with HgX₂ [X˭Cl (1), Br (2) and I (3)] in equimolar ratios and CdCl₂.H₂O (4) in 1:2 molar ratio using methanol as a solvent lead to binuclear Hg(II) complexes and a polymeric Cd(II) organic–inorganic hybrid. Furthermore, from the reaction of sulfonium ylides (Y₁), (Me)₂SCHC(O)C₆H₄‒p‒NO₂ (Y₂), and (Me)₂SCHC(O)C₆H₄‒p‒OMe (Y₃) with AgTfO in 2: 1 molar ratio using dichloromethane as a solvent, [Ag(Y_n)₂]TfO [n = 1 (5), n = 2 (6), n = 3 (7)] complexes were obtained. Single crystal X-ray diffraction analysis reveals the presence of linear structure for 5. Characterization of the obtained compounds was also performed by elemental analysis, IR, ¹H-NMR, and ¹³C-NMR.

Keywords:

• Sulfonium ylide
• binuclear complex
• polymeric hybrid
• linear structure
• single crystal X-ray