About the Syntheses of Chalcogenidometalates by in‐situ ­Reduction with Elemental Alkali Metals12. Issue 2 (26th November 2014)

• Record Type: Journal Article
• Authors: Thiele, Günther; Vondung, Lisa; Dehnen, Stefanie
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 641:Issue 2(2015)
• Page Start: 247
• Page End: 252
• Publication Date: 2014-11-26
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201400462
• Languages: English
• ISSNs: 0044-2313

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Reduction of chalcogen‐rich Pb:Ch (1:2) phases in ethane‐1, 2‐diamine (<italic>en</italic>) by elemental alkali metals results in the formation of solutions of [Pb₂Ch₃]^2– of high purity and abundance. In contrast, application of the same reaction conditions to a binary Bi:Te (1:2) phase yields the mononuclear [BiTe₃]^3– anion. Instead of the expected [Tl₂Te₃]^4– or [Tl₂Te₂]^2– anions, analogous reactions with a Tl:Te (1:1) phase end up with a C–C‐bond cleavage of the solvent <italic>en</italic> with formation of a salt of the telluridocyanate (N≡C–Te)^– anion. Side reactions of <italic>en</italic> and elemental cesium are presented and metalate solutions are investigated with NMR spectroscopy.</p> </abstract>