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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Neutral and Cationic Silicon Species Containing Aryl-OCO- or Aryl-SCS-Type Pincer Ligands: Synthesis, Structure, Bonding, and Comparison with Aryl-NCN Systems
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Neutral and Cationic Silicon Species Containing Aryl-OCO- or Aryl-SCS-Type Pincer Ligands: Synthesis, Structure, Bonding, and Comparison with Aryl-NCN Systems

机译：包含芳基-OCO-或芳基-SCS型钳型配体的中性和阳离子硅物种：合成，结构，键合和与芳基-NCN系统的比较

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摘要

The reaction of dichloro(methyl)silane, dichloro(phenyl)silane or dichloro(dimethyl)silane with one equivalent of the lithiated aryl pincer ligands [2,6-(DoCH(2))(2)H3C6]Li leads to the chlorosilanes [2,6-(DoCH(2))(2)H3C6]SiRR'Cl 1-6, respectively, as thermolabile oily compounds. Treatment of 1-6 with trimethylsilyl triflate leads to the crystalline ionic silicon triflates [2,6-(DoCH(2))(2)H3C6SiRR'](+)center dot X- 7-12, respectively [(X = OSO2CF3), 1, 7: Do = OMe, 2, 8: Do = SMe, 1, 2, 7, 8: R = Me, R' = H; 3, 9: Do = OMe, 4, 10: Do = SMe, 3, 4, 9, 10: R = Ph, R' = H; 5, 11: Do = OMe, 6, 12 = SMe, 5, 6, 11, 12: R R' = Me]. The compounds 1-12 are characterized by NMR spectroscopy, by conductivity measurements, and by X-ray crystallography (8-12). The NMR parameters delta Si, (1)J(SiH) and delta H(SiH) and some structural data are compared with those of known compounds containing one NCN-pincer aryl ligand or two aryl substituents of the type [2-(DoCH(2))(2)H4C6]. Differences in bonding depending on the type of the donor Do (NMe2, OMe, SMe) are discussed.
机译：二氯（甲基）硅烷，二氯（苯基）硅烷或二氯（二甲基）硅烷与一当量的锂化芳基夹钳配体[2,6-（DoCH（2））（2）H3C6] Li的反应生成氯硅烷[2,6-（DoCH（2））（2）H3C6] SiRR'Cl 1-6分别为不耐热的油性化合物。用三氟甲磺酸三甲基硅烷基酯处理1-6分别导致结晶离子硅三氟甲磺酸盐[2,6-（DoCH（2））（2）H3C6SiRR']（+）中心点X-7-12 [[X = OSO2CF3） ，1、7：Do = OMe，2、8：Do = SMe，1、2、7、8：R = Me，R'= H; 3，9：Do = OMe，4，10：Do = SMe，3，4，9，10：R = Ph，R'= H; 5、11：Do = OMe，6、12 = SMe，5、6、11、12：R R'= Me]。化合物1-12通过NMR光谱，电导率测量和X射线晶体学（8-12）表征。将NMR参数delta Si，（1）J（SiH）和delta H（SiH）以及一些结构数据与包含一个NCN-夹子芳基配体或两个[2-（DoCH（ 2））（2）H4C6]。讨论了根据供体Do（NMe2，OMe，SMe）类型的键合差异。

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