氰基硅酸盐——合成与结构
Cyanidosilicates-Synthesis and Structure.
作者信息
Harloff Jörg, Michalik Dirk, Nier Simon, Schulz Axel, Stoer Philip, Villinger Alexander
机构信息
Institut für Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059, Rostock, Germany.
Abteilung Materialdesign, Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.
出版信息
Angew Chem Int Ed Engl. 2019 Apr 8;58(16):5452-5456. doi: 10.1002/anie.201901173. Epub 2019 Mar 15.
Starting from fluoridosilicate precursors in neat cyanotrimethylsilane, Me Si-CN, a series of different ammonium salts [R NMe] (R=Et, Pr, Bu) with the novel [SiF(CN) ] and [Si(CN) ] dianions was synthesized in facile, temperature controlled F /CN exchange reactions. Utilizing decomposable, non-innocent cations, such as [R NH] , it was possible to generate metal salts of the type M [Si(CN) ] (M =Li , K ) via neutralization reactions with the corresponding metal hydroxides. The ionic liquid [BMIm] [Si(CN) ] (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.
从纯氰基三甲基硅烷（Me₃Si-CN）中的氟硅酸盐前体开始，通过简便的、温度可控的F⁻/CN⁻交换反应，合成了一系列具有新型[SiF₅(CN)]⁻和[Si(CN)₆]²⁻阴离子的不同铵盐[R₄NMe]⁺（R = Et、Pr、Bu）。利用可分解的、非惰性阳离子，如[R₃NH]⁺，通过与相应金属氢氧化物的中和反应，可以生成M₂[Si(CN)₆]（M = Li⁺、K⁺）型金属盐。离子液体[BMIm][Si(CN)₆]（熔点 = 72°C，BMIm = 1-丁基-3-甲基咪唑鎓）通过盐复分解反应制得。所有合成的盐都能以良好的产率分离出来，并进行了全面表征。
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