University of Regensburg, Institute of Inorganic Chemistry, 93040 Regensburg (Germany).
Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev str. 3, Novosibirsk 630090 (Russia).
Angew Chem Int Ed Engl. 2015 Oct 26;54(44):13122-5. doi: 10.1002/anie.201505773. Epub 2015 Sep 4.
The synthesis of the Lewis base stabilized monomeric parent compound of stibanylboranes, "H2 Sb-BH2 ", is reported. Through a salt metathesis route, the silyl-substituted compounds (Me3 Si)2 Sb-BH2 ⋅LB (LB=NMe3 , NHC(Me) ) were synthesized as representatives of derivatives with a Sb-B σ bond. Under very mild conditions, they could be transformed into the target compounds Me3 N⋅H2 B-HSb-BH2 ⋅NMe3 and H2 Sb-BH2 ⋅NHC(Me) , respectively. The products were characterized by X-ray structure analysis, NMR spectroscopy, IR spectroscopy, and mass spectrometry. DFT calculations give further insight into the stability and bonding of these unique compounds.
报道了路易斯碱稳定的单硼烷单体母体化合物“H2 Sb-BH2 ”的合成。通过盐交换路线，合成了取代基为（Me3 Si）2 Sb-BH2 ⋅LB（LB=NMe3 ，NHC(Me) ）的硅取代化合物，作为具有 Sb-B σ 键的衍生物的代表。在非常温和的条件下，它们可以分别转化为目标化合物 Me3 N⋅H2 B-HSb-BH2 ⋅NMe3 和 H2 Sb-BH2 ⋅NHC(Me) 。通过 X 射线结构分析、NMR 光谱、IR 光谱和质谱对产物进行了表征。DFT 计算进一步深入了解了这些独特化合物的稳定性和键合。
