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Issue 10, 2015
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Dithionite and sulfinate complexes from the reaction of SO2 with decamethylsamarocene

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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.

Graphical abstract: Dithionite and sulfinate complexes from the reaction of SO2 with decamethylsamarocene

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Publication details

The article was received on 05 Feb 2015, accepted on 31 Mar 2015 and first published on 16 Apr 2015


Article type: Paper
DOI: 10.1039/C5NJ00318K
Citation: New J. Chem., 2015,39, 7589-7594
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    Dithionite and sulfinate complexes from the reaction of SO2 with decamethylsamarocene

    S. V. Klementyeva, N. Arleth, K. Meyer, S. N. Konchenko and P. W. Roesky, New J. Chem., 2015, 39, 7589
    DOI: 10.1039/C5NJ00318K

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