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Pseudohalonium ions: [Me_3Si-X-SiMe_3]~+ (X = CN, OCN, SCN, and NNN)

机译:伪hal离子:[Me_3Si-X-SiMe_3]〜+(X = CN,OCN,SCN和NNN)

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摘要

By utilizing reaction mixtures, such as Me_3Si-XV[Me _3Si-X-SiMe_3]~+ (X = CN, OCN, SCN, and NNN), it was possible to prepare the first examples of bissilylated pseudohalonium cations in high yields. The structure and bonding of a whole series of salts containing pseudohalonium cations is discussed on the basis of experimentally observed (X-ray diffraction, Raman, and IR spectroscopy, and mass spectrometry) and theoretically obtained data. Salts containing pseudohalonium cations are only stable in the presence of weakly coordinating anions, such as the well-known tetrakis(pentafluorophenyl)borate, [B(C_6Fs) _4]~-.
机译:通过利用反应混合物,例如Me_3Si-XV [Me _3Si-X-SiMe_3] +(X = CN,OCN,SCN和NNN),可以高产率制备双甲硅烷基化假hal阳离子的第一个实例。在实验观察到的基础上(X射线衍射,拉曼光谱,红外光谱和质谱)和理论上获得的数据,讨论了一系列含假on阳离子的盐的结构和键合。含假hal阳离子的盐仅在弱配位阴离子的存在下才稳定,例如众所周知的四(五氟苯基)硼酸四[B(C_6Fs)_4]-。

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