Fachbereich Chemie and Wissenschaftliches Zentrum für, Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043, Marburg, Germany.
Chemistry. 2022 Dec 9;28(69):e202202932. doi: 10.1002/chem.202202932. Epub 2022 Nov 21.
In this work, we report the preparation of multiple interpnictogen chain compounds with three consecutive pnictogen atoms and terminal Ar Bi fragments (Ar=Ph, Mes). Symmetrical compounds of the form Ar Bi-E(tBu)-Bi Ar (1: Ar=Ph, E=P; 2: Ar=Ph, Mes, E=As) as well as ternary interpnictogen compounds of the form Ar Bi-E (tBu)-E tBu (Ar=Ph, Mes; 4: E =P, E =As; 5: E =P, E =Sb; 6: E =As, E =P) were prepared. The decomposition in solution at room temperature and under the influence of light was studied for compounds 1-6. The reactivity of 1 and 2 with the small N-heterocyclic carbene 1,3,4,5-tetramethylimidazol-2-ylidene (Me IMe) was also studied. In the case of 1 , the formation and consecutive decomposition of Me IMe=PtBu (8) was observed in solution. Hence, it was shown that 1 can react as a "masked phosphinidene". In the case of 2 , no reaction with Me IMe was observed. All isolated compounds were analysed by NMR and IR spectroscopy, mass spectrometry, elemental analysis and single-crystal X-ray diffraction.
在这项工作中，我们报告了多种具有三个连续的磷族元素原子和末端 Ar Bi 片段（Ar=Ph, Mes）的互磷族链化合物的制备。具有形式 Ar Bi-E(tBu)-Bi Ar（1：Ar=Ph, E=P；2：Ar=Ph, Mes, E=As）的对称化合物以及形式 Ar Bi-E(tBu)-E tBu（Ar=Ph, Mes；4：E =P, E =As；5：E =P, E =Sb；6：E =As, E =P）的三元互磷族化合物均被制备。研究了化合物 1-6 在室温下和光的影响下在溶液中的分解情况。还研究了化合物 1 和 2 与小的 N-杂环卡宾 1,3,4,5-四甲基咪唑-2-亚基（Me IMe）的反应性。在 1 的情况下，观察到 Me IMe=PtBu（8）在溶液中的形成和连续分解。因此，表明 1 可以作为“掩蔽膦烯”反应。在 2 的情况下，没有观察到与 Me IMe 的反应。所有分离出的化合物均通过 NMR 和 IR 光谱、质谱、元素分析和单晶 X 射线衍射进行了分析。
