Atom Scrambling of Linear C<sub>5</sub> in the Gas Phase: a Joint Experimental and Theoretical Study
作者:Suresh Dua、John H. Bowie
DOI:10.1021/jp013060f
日期:2002.2.1
the radical anion (by a vertical Franck-Condon process) to the radical cation], and the neutralization/reionization [ - NR + , stepwise vertical oxidation of the radical anion to the neutral, then of the neutral to the radical cation] spectra of [CC 1 3 CCC] - . show partial and complete atom scrambling, respectively. Under the experimental conditions used, the neutral has a lifetime of 10 - 6 s before
自由基阴离子[CC 1 3 CCC] - 。,具有已知的键连接性,已在 VG ZAB 2HF 质谱仪的离子源中通过 (CH3) 3 Si-C≡C 1 3 C(=NNH-甲苯磺酰基)-C≡C-Si(CH3) 3 Si-C≡C 1 3 C(=NNH-tosyl)-C≡C-Si(CH3) 的反应合成3) 3 与 HO - 随后是 F - (来自 SF 6 )。[CC 1 3 CCC] - 的碰撞诱导质谱。仅显示一个碎片:1 2 C 的唯一损失。CCSD(T)/aug-cc-pVDZ//B3LYP/6-31G-(d) 理论水平的计算研究表明,该实验观察意味着 [CC 1 3 CCC] - 。在碰撞激活条件下不重排。电荷反转 [ - CR + ,自由基阴离子同步电荷剥离(通过垂直弗兰克-康登过程)到自由基阳离子],和中和/再电离 [ - NR + ,自由基阴离子逐步垂直氧化成中性, [CC 1 3 CCC]