10.6084/m9.figshare.5979454.v2 Zhengang Han Zhengang Han Kefeng Xie Kefeng Xie Xiaofang Ma Xiaofang Ma Xiaoquan Lu Xiaoquan Lu Synthesis and characterization of a 2, 5-Bis(trimethylsilyl)-substituted Bis(1, 1′-silolide) dianion Taylor & Francis Group 2018 Aromaticity bis(silole) dianion silyl effect 2018-05-11 19:03:33 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Synthesis_and_Characterization_of_a_2_5-Bis_trimethylsilyl_-substituted_Bis_1_1_-silolide_Dianion/5979454 <p>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 <sup>1</sup>H, <sup>29</sup>Si, and <sup>13</sup>C 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).</p>