Segizbayev Medet, Dmitrienko Anton, Simionescu Razvan, Pilkington Melanie, Nikonov Georgii I
Chemistry Department, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, L2S 3A1, Canada.
Chem Asian J. 2023 Nov 2;18(21):e202300747. doi: 10.1002/asia.202300747. Epub 2023 Oct 6.
Diimino-carbene-supported germylone dimNHCGe does not react with BPh and does not activate dihydrogen in the FLP mode in the combination with this borane. However, it reacts with B(C F ) to give the zwitterionic borate dimNHCGe-(C F )BF(C F ) . This compound can be converted into the hydroborate dimNHCGe-(C F )BH(C F ) (8) and further into [dimNHCGe-(C F )B(C F ) ] (4). Compound 4 is a Ge/B analogue of Stephan's FLP parent P/B compound (C H Me ) P-C F -B(C F ) but unlike the latter cannot split dihydrogen. Moreover, attempts to prepare a Ge/B analogue of the zwitterion (C H Me ) HP-C F -BH(C F ) by protonation of borate 8 resulted in immediate elimination of H
二亚氨基卡宾支撑的锗酮dimNHCGe不与BPh反应，并且在与这种硼烷组合时不会以FLP模式活化氢气。然而，它与B(C₆F₅)₃反应生成两性离子硼酸盐dimNHCGe-(C₆F₅)₂BF(C₆F₅)₂ 。该化合物可以转化为硼氢化物dimNHCGe-(C₆F₅)₂BH(C₆F₅) (8)，并进一步转化为[dimNHCGe-(C₆F₅)₂B(C₆F₅)₂]⁻ (4)。化合物4是斯蒂芬FLP母体P/B化合物(C₆H₄Me₂)₂P-C₆F₅-B(C₆F₅)₂的Ge/B类似物，但与后者不同的是，它不能分解氢气。此外，通过硼酸盐8的质子化制备两性离子(C₆H₄Me₂)₂HP-C₆F₅-BH(C₆F₅)的Ge/B类似物的尝试导致立即消除H₂ 。
