Bisai Milan Kumar, Das Tamal, Vanka Kumar, Gonnade Rajesh G, Sen Sakya S
Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India.
Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
Angew Chem Int Ed Engl. 2021 Sep 13;60(38):20706-20710. doi: 10.1002/anie.202107847. Epub 2021 Aug 18.
Disilenes with differently coordinated silicon atoms are not known. Here, we have shown the high yield synthesis of a range of disilenes (2-4 and 6) upon reaction of a hypersilyl silylene PhC(NtBu) SiSi(SiMe ) (1) with aliphatic chlorophosphines. The most striking characteristic of these disilenes is the presence of two differently coordinated Si atoms (one is three-coordinated, the other four-coordinated). The analogous reaction with Ph PCl did not afford the desired disilene, but, surprisingly, led to the first tetraphosphinosilane (8). DFT calculations were performed to understand the bonding in disilenes and differences in reactivity of the complexes.
具有不同配位硅原子的乙硅烯尚不为人所知。在此，我们展示了在超硅基硅烯PhC(NtBu)SiSi(SiMe)（1）与脂肪族氯膦反应时，一系列乙硅烯（2 - 4和6）的高产率合成。这些乙硅烯最显著的特征是存在两个配位不同的硅原子（一个是三配位，另一个是四配位）。与PhPCl的类似反应未得到所需的乙硅烯，但令人惊讶的是，生成了首个四膦基硅烷（8）。进行了密度泛函理论计算以理解乙硅烯中的键合以及配合物反应性的差异。
