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Cyanidosilicates—Synthesis and Structure
Author(s) -
Harloff Jörg,
Michalik Dirk,
Nier Simon,
Schulz Axel,
Stoer Philip,
Villinger Alexander
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201901173
Subject(s) - ionic liquid , salt (chemistry) , chemistry , ammonium , metathesis , salt metathesis reaction , metal , medicinal chemistry , inorganic chemistry , reaction conditions , polymer chemistry , catalysis , organic chemistry , polymerization , polymer
Starting from fluoridosilicate precursors in neat cyanotrimethylsilane, Me 3 Si−CN, a series of different ammonium salts [R 3 NMe] + (R=Et, n Pr, n Bu) with the novel [SiF(CN) 5 ] 2− and [Si(CN) 6 ] 2− dianions was synthesized in facile, temperature controlled F − /CN − exchange reactions. Utilizing decomposable, non‐innocent cations, such as [R 3 NH] + , it was possible to generate metal salts of the type M 2 [Si(CN) 6 ] (M + =Li + , K + ) via neutralization reactions with the corresponding metal hydroxides. The ionic liquid [BMIm] 2 [Si(CN) 6 ] (m.p.=72 °C, BMIm=1‐butyl‐3‐methylimidazolium) was obtained by a salt metathesis reaction. All the synthesized salts could be isolated in good yields and were fully characterized.