关键词: Hydrides Hypervalent compounds Main group elements Neutron diffraction Supramolecular chemistry

来  源:   DOI:10.1002/chem.202400662

Abstract:
The hypercoordinate [SiH6]2- anion is not stable in solution. Here, we report the room temperature, solution stable molecular [SiH6]2- complex, [{KCa(NON)(OEt2)}2][SiH6] (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethyl-xanthene)), where the [SiH6]2- anion is stabilised within a supramolecular assembly that mimics the solid-state environment of the anion in the lattice of K2SiH6. Solution-state reactivity of the complex towards carbon monoxide, benzaldehyde, azobenzene and acetonitrile is reported, yielding a range of reduction and C-C coupled products.
摘要:
超配位[SiH6]2-阴离子在溶液中不稳定。这里,我们报告室温,溶液稳定的分子[SiH6]2-络合物,[{KCa(NON)(OEt2)}2][SiH6](NON=4,5-双(2,6-二异丙基苯胺基)-2,7-二叔丁基-9,9-二甲基-氧杂蒽),其中[SiH6]2-阴离子在模拟K2SiH6晶格中阴离子的固态环境的超分子组装体中稳定。络合物对一氧化碳的溶液态反应性,苯甲醛,偶氮苯和乙腈报告,产生一系列还原和C-C偶联产物。
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