Coordination of N-heterocyclic carbene to H_2SiX_2 (X = Cl, OTf) and H_3SiOTf (OTf = OSO_2CF_3): Synthesis of donor-stabilized parent silylium salts with four- and five-coordinate silicon atoms

Xiong Y.; Yao S.; Driess M.

首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Coordination of N-heterocyclic carbene to H_2SiX_2 (X = Cl, OTf) and H_3SiOTf (OTf = OSO_2CF_3): Synthesis of donor-stabilized parent silylium salts with four- and five-coordinate silicon atoms

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Coordination of N-heterocyclic carbene to H_2SiX_2 (X = Cl, OTf) and H_3SiOTf (OTf = OSO_2CF_3): Synthesis of donor-stabilized parent silylium salts with four- and five-coordinate silicon atoms

机译：N杂环卡宾与H_2SiX_2（X = Cl，OTf）和H_3SiOTf（OTf = OSO_2CF_3）的配位：供体稳定的具有四和五坐标硅原子的母体硅盐的合成

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The reactivity of the N-heterocyclic carbene (NHC) 1,3-bis(2,6- diisopropylphenyl)imidazol-2-ylidene towards dichlorosilane H _2SiCl_2, bis(trifluoromethanesulfonato)silane H _2Si(OTf)_2 (OTf = OSO_2CF_3), and silyl trifluoromethanesulfonate H_3SiOTf has been investigated. It turned out that the coordination of the NHC ligand can occur stepwise to form the three neutral compounds (NHC)SiH_2Cl_2 (1), (NHC) _2SiH_2Cl_2 (2), (NHC)SiH_2(OTf) _2 (3), as well as the two ion pairs [(NHC)SiH_3] ~+(OTf~-) (4) and [(NHC)_2SiH_3] ~+(OTf~-) (5); the latter represent the first NHC adducts of the parent silylium cation (H_3Si~+). The multinuclear NMR and IR spectroscopic data of the products reflect the characteristics of four-, five-, and six-coordinate silane complexes. All new compounds were structurally characterized by single-crystal X-ray diffraction analyses.

机译：N-杂环卡宾（NHC）1,3-双（2,6-二异丙基苯基）咪唑-2-亚烷基对二氯硅烷H _2SiCl_2，双（三氟甲磺酰基）硅烷H _2Si（OTf）_2（OTf = OSO_2CF_3）的反应性，研究了三氟甲磺酸甲硅烷基酯H_3SiOTf。结果表明，NHC配体的配位可以逐步发生，从而形成三种中性化合物（NHC）SiH_2Cl_2（1），（NHC）_2SiH_2Cl_2（2），（NHC）SiH_2（OTf）_2（3）以及两个离子对[（NHC）SiH_3]〜+（OTf〜-）（4）和[（NHC）_2SiH_3]〜+（OTf〜-）（5）;后者代表母体甲硅烷基阳离子（H_3Si〜+）的第一个NHC加合物。产品的多核NMR和IR光谱数据反映了四，五和六配位硅烷配合物的特性。所有新化合物的结构均通过单晶X射线衍射分析进行了表征。

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《Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences》 |2013年第6期|共8页
作者
Xiong Y.; Yao S.; Driess M.;
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正文语种 eng
中图分类 54;
关键词
Hypercoordination; Main group elements; Silane complexes; Silicon;

机译：超配位;主族元素;硅烷配合物;硅;

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1. Coordination of N-heterocyclic carbene to H_2SiX_2 (X = Cl, OTf) and H_3SiOTf (OTf = OSO_2CF_3): Synthesis of donor-stabilized parent silylium salts with four- and five-coordinate silicon atoms [J] . Xiong Y., Yao S., Driess M. Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences . 2013,第5a6期

机译：N杂环卡宾与H_2SiX_2（X = Cl，OTf）和H_3SiOTf（OTf = OSO_2CF_3）的配位：供体稳定的具有四和五坐标硅原子的母体硅盐的合成
2. Well-defined indium(III)N-heterocyclic carbene complexes with triflate ligands:Structural models for the In(OTf)_3 catalyst [J] . Jamie H.Cotgreave, David Colclough, Gabriele Kociok-Kohn, Dalton transactions: An international journal of inorganic chemistry . 2004,第10期

机译：具有三氟甲磺酸酯配体的明确定义的铟（III）N-杂环卡宾配合物：In（OTf）_3催化剂的结构模型
3. Silane-Functionalized N-Heterocyclic Carbene-Cobalt Complexes Containing a Five-Coordinate Silicon with a Covalent Co-Si Bond [J] . Sun Jian, Ou Chong, Wang Chao, Organometallics . 2015,第8期

机译：硅烷官能化的N-杂环碳-钴配合物，其中含有具有共价Co-Si键的五配位硅
4. Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions [O] . Ziya Sahin, Senem Akkoς, İlhan Özer İlhan, 2017

机译：N-杂环碳钯钯：苯并咪唑鎓盐的合成及其在碳-碳键形成反应中的催化活性
5. Enhancement of the antiproliferative activity of RuCp(PPh3)2(dmoPTA-1κP)+via its coordination to one {CoCl2} unit: synthesis, crystal structure and properties of RuCp(PPh3)2-μ-dmoPTA-1κP:2κ2N,N′-CoCl2(OTf)·0.25H2O [O] . Zenaida Mendoza, Pablo Lorenzo-Luis, Franco Scalambra, 2017

机译：通过其协调对1 {COCL2}单元的增强RUCP（PPH3）2（DMOPTA-1KP） +的抗增殖活性：RUCP（PPH3）2-μ-DMOPTA-1ΚP：2Κ2n的合成，晶体结构和性质，n'-cocl2（OTF）·0.25H2O

Coordination of N-heterocyclic carbene to H_2SiX_2 (X = Cl, OTf) and H_3SiOTf (OTf = OSO_2CF_3): Synthesis of donor-stabilized parent silylium salts with four- and five-coordinate silicon atoms

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