Dithionite and sulfinate complexes from the reaction of SO2 with decamethylsamarocene

作者：Klementyeva Svetlana V; Arleth Nicholas; Meyer Karsten; Konchenko Sergey N^*; Roesky Peter W

来源：New Journal of Chemistry, 2015, 39(10): 7589-7594.

DOI：10.1039/c5nj00318k

The reaction of [(eta(5)-C5Me5)(2)Sm(THF)(2)] with SO2 resulted in four different products. The dimeric samarium complex [{(eta(5)-C5Me5)(2)Sm(C5Me5SO2)}(2)] (1) crystallized from the reaction mixture first. The dithionite-sulfinate complex [{(eta(5)-C5Me5)(2)Sm(S2O4)}(2){(eta(5)-C5Me5)Sm(C5Me5SO2)}(2)] (2), was obtained as the second major product after workup of the filtrate. Additionally, the dithionite complex [{(eta(5)-C5Me5)(2)Sm}(2)(S2O4)] (3) and the sulfinate complex [{(eta(5)-C5Me(5))Sm}(2)(C5Me5SO2)(4)] (4) were isolated as minor products. All compounds were characterized by single crystal X-ray diffraction. As major reaction pathways, the reductive coupling of two SO2 molecules to form the dithionite anion S2O42- and the nucleophilic attack of one samarocene C5Me5 ligand on the sulfur atom of SO2 were observed.

• 出版日期2015