High-resolution photoelectron spectrum of the origin band of the (X)over-tilde+ 2E ← (X)over-tilde 1A1 ionising transition of propyne

被引：3

作者：

Jacovella, U. ^{[1
]}

Merkt, F. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Phys Chem Lab, Dept Chem & Appl Biosci, Zurich, Switzerland

来源：

MOLECULAR PHYSICS | 2018年 / 116卷 / 23-24期

基金：

瑞士国家科学基金会;

关键词：

PFI-ZEKE photoelectron spectroscopy; propyne radical cation; Jahn-Teller effect; spin-orbit coupling; SYMMETRIC-TOP MOLECULES; JAHN-TELLER; RYDBERG STATES; SPECTROSCOPY; PHOTOIONIZATION; IONIZATION; ACETYLENES;

D O I：

10.1080/00268976.2018.1451002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The pulsed-field-ionisation zero-kinetic-energy photoelectron spectrum of the origin band of the (X) over tilde (+) E-2 similar to (X) over tilde (1)A(1) ionising transition of propyne has been recorded at a resolution sufficient to partially resolve the rotational structure. The rovibronic photoionisation selection rules are derived in the spin double group C-3v(MS)(2) and are used to model the experimental spectrum and determine the adiabatic ionisation energy of propyne and the spin-orbit coupling constant of the radical cation of propyne. The Jahn-Teller effect is found to significantly affect the spin-orbit splitting of the cationic ground state. [GRAPHICS] .

引用

页码：3602 / 3606

页数：5

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