论文标题
通过后坐力协方差图成像确定的pah diatical和Trication解离的动能的动能
The Kinetic Energy of PAH Dication and Trication Dissociation Determined by Recoil-Frame Covariance Map Imaging
论文作者
论文摘要
我们研究了三个多环芳烃（PAHS），氟，平服和吡啶的分解和三化化的解离。 PAH是一个在空间中普遍存在的分子家族，并且参与了星际培养基的大部分化学。在我们的实验中，通过与30.3 nm极端紫外线（XUV）光子的相互作用形成离子，并使用PIMMS2多质量成像传感器记录其速度图图像。反抗框架协方差分析的应用允许与多个片段化通道相关的总动能释放（TKER），分别用于高精度，分别用于1.94-2.60 eV和2.95-5.29 eV范围内的分解和ticatiations和trications。实验测量由Born-Oppenheimer分子动力学（BOMD）模拟支持。
We investigated the dissociation of dications and trications of three polycyclic aromatic hydrocarbons (PAHs), fluorene, phenanthrene, and pyrene. PAHs are a family of molecules ubiquitous in space and involved in much of the chemistry of the interstellar medium. In our experiments, ions are formed by interaction with 30.3 nm extreme ultraviolet (XUV) photons, and their velocity map images are recorded using a PImMS2 multi-mass imaging sensor. Application of recoil-frame covariance analysis allows the total kinetic energy release (TKER) associated with multiple fragmentation channels to be determined to high precision, ranging 1.94-2.60 eV and 2.95-5.29 eV for the dications and trications, respectively. Experimental measurements are supported by Born-Oppenheimer molecular dynamics (BOMD) simulations.
