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Synthesis and characterization of a 2, 5-Bis(trimethylsilyl)-substituted Bis(1, 1′-silolide) dianion

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Version 2 2018-05-11, 19:03
Version 1 2018-03-13, 19:09
journal contribution
posted on 2018-05-11, 19:03 authored by Zhengang Han, Kefeng Xie, Xiaofang Ma, Xiaoquan Lu

A novel silyl-substituted bis(1, 1′-silolide) dianion has been isolated and characterized by single-crystal X-ray analysis for the first time. The 1H, 29Si, and 13C NMR spectra show significant delocalization of the negative charges to the silole ring. X-ray crystallography revealed equalized C−C distances and DFT calculation also indicates for significant aromaticity. Reaction with trimethylchlorosilane gave the expected bis(1, 2, 5-tris(trimethylsilyl)-3, 4-diphenyl-silacyclopentadienyl).

Funding

Natural Science Foundation of China [21575115,21327005,21565022].

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