Janssen Marvin, Mebs Stefan, Beckmann Jens
Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Straße 7, 28359, Bremen, Germany.
Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
Chempluschem. 2023 Mar;88(3):e202200429. doi: 10.1002/cplu.202200429. Epub 2023 Jan 20.
The newly prepared and fully characterized stibenium and bismuthenium ions [R MesE] (E=Sb, Bi; R =dispiro[fluorene-9,3'-(1',1',7',7'-tetramethyl-s-hydrindacen-4'-yl)-5',9''-fluorene) were rigorously compared to the previously communicated phosphenium and arsenium ions (E=P, As) as well as the bis(m-terphenyl) pnictogenium ions [(2,6-Mes C H ) E] (E=Sb, Bi). It is demonstrated that the choice of the aryl substituents dramatically effects the molecular structures (e. g. the primary E-C bond lengths) and the electronic structures (e. g. the energy of the LUMOs).
将新制备并经过充分表征的锍鎓离子和铋鎓离子[R MesE]（E = Sb，Bi；R = 双螺[芴-9,3'-(1',1',7',7'-四甲基-s-氢化茚并-4'-基)-5',9''-芴]）与之前报道的鏻鎓离子和砷鎓离子（E = P，As）以及双（间三联苯）氮族鎓离子[(2,6-Mes₂C₆H₃)₂E]（E = Sb，Bi）进行了严格比较。结果表明，芳基取代基的选择对分子结构（例如主要的E-C键长）和电子结构（例如最低未占分子轨道的能量）有显著影响。
