蒽 、 氩 以
neat (no solvent, gas phase) 为溶剂,
生成 anthracene * Ar 、 anthracene-(argon)3 complex 、 anthracene-(argon)2 complex 、 anthracene * Ar 、 anthracene-(argon)4 complex
参考文献:
名称:
A study of anthracene–Arn (n=0–5) in the ground cationic state by laser threshold photoelectron spectroscopy: Selective ionization of complex isomers formed in the free jet expansion
摘要:
The van der Waals complexes formed between anthracene and argon in a free jet expansion are studied using laser resonance enhanced multiphoton ionization (REMPI) threshold photoelectron spectroscopy with the aim of selectively ionizing specific isomers of small- to medium-sized clusters for which discrete absorption peaks exist in the excitation spectrum. Two-color (1+1′) REMPI threshold photoelectron spectra of a number of isomers of anthracene–Arn (n=1–5) have been recorded in addition to that of anthracene itself. The following adiabatic ionization energies (Ia) have been obtained to within ±5 cm−1: 59 872 (n=0), 59 807 and 59 825 (n=1), 59 757 and 59 774 (n=2), 59 695 (n=3), 59 606 and 59 660 (n=4), and 59 565 cm−1 (n=5). For n=1–3, detailed van der Waals cation vibrational structure was observed, showing progressions in both bending and stretching mode vibrations. The resulting vibrational information together with the ionization energy red shifts has helped in assigning bands observed in the threshold photoelectron spectra to particular geometric isomers some of which were not necessarily observed in the excitation spectrum.
Resonances in mediated intersystem crossing of jet-cooled anthracene derivatives
作者:Aviv Amirav、Joshua Jortner
DOI:10.1016/0009-2614(86)80621-2
日期:1986.12
The mechanisms of direct and mediated intersystemcrossing from the first excited singlet manifold of anthracene and some of its derivatives were explored by the study of the internal and the external heavy-atom effect on the fluorescence quantum yields. Pronounced modeselectivity was observed in the vibrational energy dependence of the emission quantum yield in 9-bromoan-thracene and 9,10-dibromoanthracene
Real-time dynamics of vibrational predissociation in anthracene-Arn (n = 1, 2, 3)
作者:Ahmed Heikal、Luis Bañares、David H. Semmes、Ahmed H. Zewail
DOI:10.1016/0301-0104(91)80092-v
日期:1991.10
The vibrationalpredissociation of van der Waals complexes of anthracene-Arn (n = 1, 2, 3), isolated in a supersonic expansion, has been studied following excitation to single vibrational levels ( 1201, 1001 1202 601) in S1. Using picosecond t spectroscopy, the intramolecularvibrational-energy redistribution IVR and the vibrationalpredissociation (VP) dynamics are studied and related to the character