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About the Syntheses of Chalcogenidometalates by in‐situ Reduction with Elemental Alkali Metals
Author(s) -
Thiele Günther,
Vondung Lisa,
Dehnen Stefanie
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201400462
Subject(s) - chemistry , alkali metal , chalcogen , caesium , inorganic chemistry , solvent , ion , elemental analysis , salt (chemistry) , crystallography , organic chemistry
Reduction of chalcogen‐rich Pb:Ch (1:2) phases in ethane‐1,2‐diamine ( en ) by elemental alkali metals results in the formation of solutions of [Pb 2 Ch 3 ] 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 [BiTe 3 ] 3– anion. Instead of the expected [Tl 2 Te 3 ] 4– or [Tl 2 Te 2 ] 2– anions, analogous reactions with a Tl:Te (1:1) phase end up with a C–C‐bond cleavage of the solvent en with formation of a salt of the telluridocyanate (N≡C–Te) – anion. Side reactions of en and elemental cesium are presented and metalate solutions are investigated with NMR spectroscopy.