Dithionite and sulfinate complexes from the reaction of SO2 with decamethylsamarocene

Language
en
Document Type
Article
Issue Date
2017-07-03
Issue Year
2015
Authors
Klementyeva, Svetlana V.
Arleth, Nicholas
Meyer, Karsten
Konchenko, Sergey N.
Roesky, Peter W.
Editor
Abstract

The reaction of [(η5-C5Me5)2Sm(THF)2] with SO2 resulted in four different products. The dimeric samarium complex [{(η5-C5Me5)2Sm(C5Me5SO2)}2] (1) crystallized from the reaction mixture first. The dithionite–sulfinate complex [{(η5-C5Me5)2Sm(S2O4)}2{(η5-C5Me5)Sm(C5Me5SO2)}2] (2), was obtained as the second major product after workup of the filtrate. Additionally, the dithionite complex [{(η5-C5Me5)2Sm}2(S2O4)] (3) and the sulfinate complex [{(η5-C5Me5)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.

Journal Title
New Journal of Chemistry
Volume
39
Issue
10
Citation
New Journal of Chemistry 39.10 (2015): S. 7589-7594. <http://pubs.rsc.org/en/content/articlelanding/2015/nj/c5nj00318k#!divAbstract>
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