Inorganic and Organometallic Chemistry, Friedrich-Alexander University Erlangen-Nürnberg, Egerlandstrasse 1, 91058, Erlangen, Germany.
Angew Chem Int Ed Engl. 2017 Apr 24;56(18):5021-5025. doi: 10.1002/anie.201700719. Epub 2017 Mar 29.
While magnesium hydride complexes are generally stabilized by hard, bulky N-donor ligands, softer ligands with a broad variety of coordination modes are shown to efficiently adapt themselves to the large variety of Mg centers in a growing magnesium hydride cluster. A P,N-chelating ligand is introduced that displays coordination modes between that of enamide, aza-allyl, and phosphinomethanide. Slight changes in the ligand bite angle have dramatic consequences for the structure type. The hitherto largest neutral magnesium hydride clusters are isolated either in a nonanuclear sheet-structure (brucite-type) or a dodecanuclear ring structure.
虽然氢化镁配合物通常由硬而庞大的 N 供体配体稳定，但具有广泛配体模式的软配体被证明能够有效地适应在不断增长的氢化镁簇中存在的各种镁中心。引入了一种 P，N-螯合配体，它显示出酰胺、氮杂烯丙基和膦甲亚基之间的配位模式。配体结合角度的微小变化对结构类型有显著影响。迄今最大的中性氢化镁簇要么以非核片状结构（水镁石型）要么以十二核环结构被分离出来。
