Synthesis and Structural Characterization of Triorganotin(IV) Derivatives with 2,2'-Thiodiglycolic Acid and 3,3'-Thiodipropionic Acid

摘要

The synthesis and structural characterization of four novel triorganotin(IV) complexes, {(R_3Sn)_2[C_2H_4S (COO)_2]}_n (R = Me: 1), ((R_3Sn)_4[C_2H_4S(COO)_2]_2}_n (R =nBu: 2), ((R_3Sn)_2[C_4H_8S(COO)_2]}_n (R = Me: 3; nBu: 4) were obtained by the reaction of 2,2'-thiodiglycolic acid, 3,3'-thiodipropionic acid and the corresponding R_3SnCl (R = Me, nBu) with potassium hydroxide in methanol. All the complexes were characterized by elemental analysis, Fourier transform infrared and nuclear magnetic resonance (~1H, ~(13)C, ~(119)Sn) spectroscopies, X-ray crystallography and thermogravimetric analyses. The crystal structures show that 1 has 2D network structure in which 2,2'-thiodiglycolic acid acts as a tetradentate ligand coordinating to the trimethyl-tin(IV) ions. Complexes 2, 3, and 4 are 3D metal-organic framework structures in which the deprotoned acids act as a tetradentate ligand afforded by four oxygen atoms.