Synthesis of a 1-Aryl-2,2-chlorosilyl(phospha)silene Coordinated by an N-Heterocyclic Carbene.
Synthesis of a 1-Aryl-2,2-chlorosilyl(phospha)silene Coordinated by an N-Heterocyclic Carbene.
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DOI：
10.3390/molecules21101309
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发表时间：
2016-09-30
期刊：
影响因子：
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通讯作者：
Streubel R
中科院分区：
文献类型：
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作者：
Kyri AW;Majhi PK;Sasamori T;Agou T;Nesterov V;Guo JD;Nagase S;Tokitoh N;Streubel R
磷硅双键化合物因其独特的物理化学性质而受到人们的广泛关注。报道了N-杂环卡宾(NHC)配位的氯磷杂多烯(NHC)的合成和结构，它具有在硅-氯部分官能化的潜力。硅膦ArPh-SiCl2RSi(Ar=大体积芳基，Rsi=Si(SiMe3)3)与两个等价物Im-ME4(1，3，4，5-四甲基咪唑-2-亚甲基)反应，得到相应的NHC配位的磷杂硅烯，ARP=SiClRSi(Im-ME4)。我们将在理论计算的基础上讨论与NHC配位的P=Si键的成键性质。
Phosphasilenes, P=Si doubly bonded compounds, have received considerable attention due to their unique physical and chemical properties. We report on the synthesis and structure of a chlorophosphasilene coordinated by an N-heterocyclic carbene (NHC), which has the potential of functionalization at the Si–Cl moiety. Treatment of a silylphosphine, ArPH–SiCl2RSi (Ar = bulky aryl group, RSi = Si(SiMe3)3) with two equivalents of Im-Me4 (1,3,4,5-tetramethylimidazol-2-ylidene) afforded the corresponding NHC-coordinated phosphasilene, ArP=SiClRSi(Im-Me4) as a stable compound. Bonding properties of the P=Si bond coordinated to an NHC will be discussed on the basis of theoretical calculations.