Synthesis and Structural Characterization of Magnesium-Substituted Polystibides [(LMg)<sub>4</sub>
Sb<sub>8</sub>
]
作者:Chelladurai Ganesamoorthy、Christoph Wölper、Anton S. Nizovtsev、Stephan Schulz
DOI:10.1002/anie.201510504
日期:2016.3.18
Sb2R4 (R=Me, Et) yielded the first Mg‐substituted realgar‐type Sb8 polystibides [(L1,2Mg)4(μ4,η2:2:2:2‐Sb8)] (L1=HC[C(Me)N(2,4,6‐Me3C6H2)]2, L2=HC[C(Me)N(2,6‐i‐Pr2C6H3)]2). Compounds [(L1,2Mg)2] serve both as reducing agents, initiating the cleavage of the Sb−C bonds, and as stabilizers for the resulting Sb8 polyanion. The polystibides were characterized by NMR and IR spectroscopies, elemental analysis
的[(L氧化还原反应1,2的Mg)2 ]和Sb 2 - [R 4(R =甲基,乙基),得到第一MG取代雄黄型锑8个polystibides [(L 1,2的Mg)4(μ 4, η 2:2:2:2 -Sb 8)](L 1 = HC [C(Me)的N(2,4,6-ME 3 c ^ 6 ħ 2)] 2,L 2 = HC [C(Me)的N(2,6 ‐ i‐ Pr 2 C 6 H 3)] 2)。化合物[(L 1,2 Mg)2既用作还原剂,引发Sb-C键的断裂,又用作所得Sb 8聚阴离子的稳定剂。通过NMR和IR光谱,元素分析和X射线结构分析对这种多金属化物进行了表征。此外,还介绍了量子化学计算的结果。