標題: UV absorption spectrum of allene radical cations in solid argon
作者: Chin, Chih-Hao
Lin, Meng-Yeh
Huang, Tzu-Ping
Wu, Yu-Jong
應用化學系
Department of Applied Chemistry
關鍵字: Electronic transition;Matrix isolation;C3H4+;UV absorption spectrum
公開日期: 5-May-2018
摘要: Electron bombardment during deposition of an Ar matrix containing a small proportion of allene generated allene cations. Further irradiation of the matrix sample at 385 nm destroyed the allene cations and formed propyne cations in solid Ar. Both cations were identified according to previously reported IR absorption bands. Using a similar technique, we recorded the ultraviolet absorption spectrum of allene cations in solid Ar. The vibrationally resolved progression recorded in the range of 266-237 nm with intervals of about 800 cm(-1) was assigned to the A E-2 <- X E-2 transition of allene cations, and the broad continuum absorption recorded in the region of 229-214 nm was assigned to their B (2)A(1) <- X E-2 transition. These assignments were made based on the observed photolytic behavior of the progressions and the vertical excitation energies and oscillator strengths calculated using time-dependent density functional theory. (C) 2018 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.saa.2018.02.028
http://hdl.handle.net/11536/144771
ISSN: 1386-1425
DOI: 10.1016/j.saa.2018.02.028
期刊: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume: 196
起始頁: 233
結束頁: 237
Appears in Collections:Articles