Krebs Kilian M, Freitag Sarah, Schubert Hartmut, Gerke Birgit, Pöttgen Rainer, Wesemann Lars
Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen (Germany).
Chemistry. 2015 Mar 16;21(12):4628-38. doi: 10.1002/chem.201406486. Epub 2015 Feb 11.
The coordination chemistry of cyclic stannylene-based intramolecular Lewis pairs is presented. The P→Sn adducts were treated with [Ni(COD)2] and [Pd(PCy3)2] (COD = 1,5-cyclooctadiene, PCy3 = tricyclohexylphosphine). In the isolated coordination compounds the stannylene moiety acts either as an acceptor or a donor ligand. Examples of a dynamic switch between these two coordination modes of the P-Sn ligand are illustrated and the structures in the solid state together with heteronuclear NMR spectroscopic findings are discussed. In the case of a Ni(0) complex, (119)Sn Mössbauer spectroscopy of the uncoordinated and coordinated phosphastannirane ligand is presented.
本文介绍了基于环状亚锡烯的分子内路易斯对的配位化学。将磷→锡加合物用[Ni(COD)₂]和[Pd(PCy₃)₂]处理（COD = 1,5 - 环辛二烯，PCy₃ = 三环己基膦）。在分离得到的配位化合物中，亚锡烯部分既可以作为受体配体，也可以作为供体配体。文中展示了磷 - 锡配体这两种配位模式之间动态转换的实例，并讨论了固态结构以及异核核磁共振光谱研究结果。对于镍(0)配合物，给出了未配位和配位的磷杂锡环戊烷配体的¹¹⁹Sn穆斯堡尔光谱。
