7 research outputs found
A Free Silanide from Nucleophilic Substitution at Silicon(II)
A computationallyâguided synthetic route to the free silanide derived from tris(3âmethylindolâ2âyl)methane ((tmim)Siâ) is reported: nucleophilic substitution on the Si(II) precursor Idippââ>SiCl2 (Idipp = 2,3âdihydroâ1,3âbis(2,6âdiisopropylphenyl)â1Hâimidazolâ2âylidene). This approach circumvents the need for strained tetrahedral silanes as synthetic intermediates. Computational investigations show that the electronâdonating properties of (tmim)Siâ are close to those of PMe3. Experimentally, the (tmim)Siâ anion is shown to undergo clean complexation to the baseâmetal salts CuCl and FeCl2, demonstrating its potential utility as a supporting ligan