Terhorst Justin G, Corcovilos Theodore A, van Stipdonk Michael J
Department of Chemistry, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States.
Department of Physics, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States.
J Am Soc Mass Spectrom. 2023 Nov 1;34(11):2439-2442. doi: 10.1021/jasms.3c00260. Epub 2023 Oct 16.
Multiple-stage collision-induced dissociation (CID) of a uranyl propiolate cation, [UO(OC-C≡CH)], can be used to prepare the U-methylidyne species [O═U≡CH] [ , , 796-805]. Here, we report that CID of [O═U≡CH] causes elimination of CO to create [UH], followed by a loss of H to generate U. A feasible, multiple-step pathway for the generation of [UH] was identified using DFT calculations. These results provide the first demonstration that multiple-stage CID can be used to prepare both U and UH directly from a UO precursor for the subsequent investigation of ion-molecule reactivity.
丙炔酸铀酰阳离子[UO(OC-C≡CH)]的多阶段碰撞诱导解离（CID）可用于制备次甲基铀物种[O═U≡CH] [ , , 796 - 805]。在此，我们报告[O═U≡CH]的CID导致CO消除生成[UH]，随后失去H生成U。使用密度泛函理论（DFT）计算确定了生成[UH]的可行多步途径。这些结果首次证明多阶段CID可用于直接从UO前体制备U和UH，以便随后研究离子 - 分子反应性。
Zotero 插件
