Dithionite and sulfinate complexes from the reaction of SO2 with decamethylsamarocene

Svetlana V. Klementyeva; Nicholas Arleth; Karsten Meyer; Sergey N. Konchenko; Peter W. Roesky

doi:10.1039/C5NJ00318K

Dithionite and sulfinate complexes from the reaction of SO₂ with decamethylsamarocene†

Svetlana V. Klementyeva,^ab Nicholas Arleth,^a Karsten Meyer,^c Sergey N. Konchenko*^ade and Peter W. Roesky*^a

* Corresponding authors

^a Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131 Karlsruhe, Germany
E-mail: roesky@kit.edu

^b G.A. Razuvaev Institute of Organometallic Chemistry, RAS, Tropinina str. 49, 603950 Nizhny Novgorod, Russia

^c Universität Erlangen-Nürnberg, Department Chemie und Pharmazie, Egerlandstr. 1, 91058 Erlangen, Germany

^d Nikolaev Institute of Inorganic Chemistry SB RAS, Prosp. Lavrentieva 3, 630090 Novosibirsk, Russia

^e Novosibirsk State University, Pirogova str. 2, 630090 Novosibirsk, Russia

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.

This article is part of the themed collection: Frontiers of Organo-f-Element Chemistry

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Article information

DOI: https://doi.org/10.1039/C5NJ00318K
Article type: Paper
Submitted: 05 Feb 2015
Accepted: 31 Mar 2015
First published: 16 Apr 2015

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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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