Abstract
Carboxylic acid chlorides are useful substrates in organic chemistry. Many germanium analogues of carboxylic acid chloride have been synthesized so far. Nevertheless, all of the reported germathioacid chlorides use bidentate nitrogen ligands and contain germanium-nitrogen bonds. Our group synthesized germathioacid chloride, Ge(S)Cl{C6H3-2,6-Tip2}(Im-i-Pr2Me2), using N-heterocyclic carbene (Im-i-Pr2Me2). As a result of density functional theory (DFT) calculation, it was found that electrons are localized on sulfur, and the germanium-sulfur bond is a single bond with a slight double bond property.
Highlights
Heavier analogues of multiple bonded organic species have attracted the interest of many chemists in terms of comparisons for structures, physical properties, and reactivities [1,2,3]
Due due to to the the limitation limitation of of the the use use of of aa bidentate bidentate nitrogen nitrogen ligand, all germathioacid chloride syntheses reported so far are only those in which nitrogen atoms ligand, all germathioacid chloride syntheses reported so far are only those in which nitrogen atoms and germanium are bonded; all are heavy analogues of carbamoyl chloride
Germanium are bonded; all are heavy analogues of carbamoyl chloride. In this we report report the the synthesis synthesis and and structure structure of of germathioacid germathioacid chloride chloride stabilized stabilized with with an an
Summary
Heavier analogues of multiple bonded organic species have attracted the interest of many chemists in terms of comparisons for structures, physical properties, and reactivities [1,2,3]. The development of heavy analogues of carboxylic acid chloride was achieved by Roesky’s group group in in 2002 They succeeded succeeded in in the the synthesis synthesis and and isolation isolation of of the the target substance (III). By thermodynamic thermodynamic stabilization stabilization using a π-diketiminate π-diketiminate ligand ligand [12] Following their their substance (III) by using a work, several results of germathioacid chloride syntheses using a bidentate nitrogen ligand have work, several results of germathioacid chloride syntheses using a bidentate nitrogen ligand have been reported reported (IV–VII). Due due to to the the limitation limitation of of the the use use of of aa bidentate bidentate nitrogen nitrogen ligand, all germathioacid chloride syntheses reported so far are only those in which nitrogen atoms ligand, all germathioacid chloride syntheses reported so far are only those in which nitrogen atoms and germanium are bonded; all are heavy analogues of carbamoyl chloride.
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