由超大位阻β-二酮亚胺配体诱导的镁-镁键极化
Mg-Mg bond polarization induced by a superbulky β-diketiminate ligand.
作者信息
Rösch Bastian, Gentner Thomas Xaver, Eyselein Jonathan, Friedrich Alexander, Langer Jens, Harder Sjoerd
机构信息
Inorganic and Organometallic Chemistry, Universität Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany.
出版信息
Chem Commun (Camb). 2020 Sep 29;56(77):11402-11405. doi: 10.1039/d0cc05200k.
The bulk of a recently reported superbulky β-diketiminate ligand was further increased by introducing tBu substituents in the ligand backbone. Attempts to isolate free Mg radicals with this extremely bulky ligand failed. Instead, a dinuclear Mg(i) complex with one chelating and one monodentate β-diketiminate ligand was isolated. Asymmetry in metal coordination results in a polarized Mg-Mg bond.
通过在配体主链中引入叔丁基取代基，最近报道的超大位阻β-二酮亚胺配体的体积进一步增大。用这种极大位阻的配体分离游离镁自由基的尝试失败了。相反，分离得到了一种双核Mg(i)配合物，其中一个β-二酮亚胺配体为螯合配体，另一个为单齿配体。金属配位的不对称性导致了Mg-Mg键的极化。
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