Ultrafast Hydrogen Migration in Photoionized Glycine

被引：19

作者：

Castrovilli, M. C. ^{[1
,2
]}

Trabattoni, A. ^{[3
,4
]}

Bolognesi, P. ^{[1
]}

O'Keeffe, P. ^{[1
]}

Avaldi, L. ^{[1
]}

Nisoli, M. ^{[2
,3
]}

Calegari, F. ^{[2
,4
,5
]}

Cireasa, R. ^{[6
]}

机构：

[1] CNR, ISM, I-00016 Rome, Italy

[2] CNR, Inst Photon & Nanotechnol, IFN, I-20133 Milan, Italy

[3] Politecn Milan, Dept Phys, I-20133 Milan, Italy

[4] CFEL DESY, Notkerstr 85, D-22607 Hamburg, Germany

[5] Univ Hamburg, Dept Phys, D-20355 Hamburg, Germany

[6] Univ Paris Sud, Inst Sci Mol Orsay, CNRS, F-91400 Orsay, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2018年 / 9卷 / 20期

基金：

欧洲研究理事会;

关键词：

AMINO-ACIDS; GAS-PHASE; DIFFERENT CONFORMERS; ATTOSECOND PULSES; CHARGE MIGRATION; BONDED MOLECULES; DYNAMICS; FRAGMENTATION; IONIZATION; 5-BENZYLURACIL;

D O I：

10.1021/acs.jpclett.8b02089

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：

Hydrogen migration in the glycine cation has been investigated using a combination of a short train of attosecond extreme ultraviolet pulses with few-optical-cycle near-infrared pulses. The yield of the photofragments produced has been measured as a function of pump probe delay. These time-dependent measurements reveal the presence of a hydrogen migration process occurring in 48 fs. Previous mass spectrometric experiments and theoretical calculations have allowed us to identify the conformations and cation states involved in the process induced by the broad band extreme ultraviolet radiation.

引用

页码：6012 / 6016

页数：9

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