title: Synthesis and Structural Characterization of Magnesium-Substituted Polystibides [(LMg)4Sb8 ].
abstract: Redox reactions of [(L(1,2) Mg)2 ] and Sb2 R4 (R=Me, Et) yielded the first Mg-substituted realgar-type Sb8 polystibides [(L(1,2) Mg)4 (μ4 ,η(2:2:2:2) -Sb8)] (L(1) =HC[C(Me)N(2,4,6-Me3 C6 H2)]2, L(2) =HC[C(Me)N(2,6-i-Pr2 C6 H3)]2). Compounds [(L(1,2) Mg)2] serve both as reducing agents, initiating the cleavage of the Sb-C bonds, and as stabilizers for the resulting Sb8 polyanion. The polystibides were characterized by NMR and IR spectroscopies, elemental analysis, and X-ray structure analysis. In addition, results from quantum chemical calculations are presented.
authors.affiliation: Faculty of Chemistry, University of Duisburg-Essen, Universitätsstrasse 5-7, S07 S03 C30, 45117, Essen, Germany.
authors.forename: Chelladurai
authors.initials: C
authors.lastname: Ganesamoorthy
authors.affiliation: Faculty of Chemistry, University of Duisburg-Essen, Universitätsstrasse 5-7, S07 S03 C30, 45117, Essen, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Wölper
authors.affiliation: Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentiev Avenue 3, 630090, Novosibirsk, Russian Federation.|Novosibirsk State University, Pirogova Street 2, 630090, Novosibirsk, Russian Federation.
authors.forename: Anton S
authors.identifier: http://orcid.org/0000-0002-5383-2711
authors.initials: AS
authors.lastname: Nizovtsev
authors.affiliation: Faculty of Chemistry, University of Duisburg-Essen, Universitätsstrasse 5-7, S07 S03 C30, 45117, Essen, Germany. stephan.schulz@uni-due.de.
authors.forename: Stephan
authors.identifier: http://orcid.org/0000-0003-2896-4488
authors.initials: S
authors.lastname: Schulz
keywords: cluster compounds; main group elements; metal-metal interactions; subvalent compounds