Resonantly enhanced multiphoton ionization and zero kinetic energy photoelectron spectroscopy of benzo[e]pyrene

被引：10

作者：

Harthcock, Colin ^{[1
]}

Zhang, Jie ^{[1
]}

Kong, Wei ^{[1
]}

机构：

[1] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA

来源：

CHEMICAL PHYSICS LETTERS | 2013年 / 556卷

基金：

美国国家航空航天局;

关键词：

POLYCYCLIC AROMATIC-HYDROCARBONS; STRONG PAHS HYPOTHESIS; INFRARED-SPECTROSCOPY; CATIONS; EMISSION; ANTHRACENE; CHRYSENE; SPECTRA;

D O I：

10.1016/j.cplett.2012.11.036

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：

We report zero kinetic energy (ZEKE) photoelectron spectroscopy via resonantly enhanced multiphoton ionization (REMPI) for benzo[e]pyrene. Extensive vibronic coupling between the first electronically excited state and a nearby state allows b(2) modes to be observed which would be Franck-Condon (FC) dis-allowed. These vibronic modes are comparable in intensity to the FC allowed a(1) modes. We are able to qualitatively simulate the vibronic spectra of both REMPI and ZEKE using density functional methods. The ZEKE spectra demonstrate propensity in preserving the vibrational excitation of the intermediate state. These results suggest a remarkable structural stability of BeP in accommodating the additional charge. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：23 / 28

页数：6

共 49 条

[1] POLYCYCLIC AROMATIC-HYDROCARBONS AND THE UNIDENTIFIED INFRARED-EMISSION BANDS - AUTO EXHAUST ALONG THE MILKY-WAY [J].

ALLAMANDOLA, LJ ;

TIELENS, AGGM ;

BARKER, JR .

ASTROPHYSICAL JOURNAL, 1985, 290 (01) :L25-L28

[2]

[Anonymous], 2004, Astrophysics of Dust

[3] The synthesis of 9,10-dimethyl-1,2-benzanthracene, 9,10-diethyl-1,2-benzanthracene and 5,9,10-trimethyl-1,2-benzanthracene [J].

Bachmann, WE ;

Chemerda, JM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :1023-1026

[4] Racemic amino acids from the ultraviolet photolysis of interstellar ice analogues [J].

Bernstein, MP ;

Dworkin, JP ;

Sandford, SA ;

Cooper, GW ;

Allamandola, LJ .

NATURE, 2002, 416 (6879) :401-403

[5] Laboratory spectra of cold gas phase polycyclic aromatic hydrocarbon cations, and their possible relation to the diffuse interstellar bands [J].

Bréchignac, P ;

Pino, T ;

Boudin, N .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2001, 57 (04) :745-756

[6] CORRELATIONS BETWEEN PHOTOELECTRON AND UV ABSORPTION-SPECTRA OF POLYCYCLIC-HYDROCARBONS - PYRENE SERIES [J].

CLAR, E ;

SCHMIDT, W .

TETRAHEDRON, 1979, 35 (08) :1027-1032

[7] A STUDY OF ANTHRACENE-AR-N (N=0-5) IN THE GROUND CATIONIC STATE BY LASER THRESHOLD PHOTOELECTRON-SPECTROSCOPY - SELECTIVE IONIZATION OF COMPLEX ISOMERS FORMED IN THE FREE JET EXPANSION [J].

COCKETT, MCR ;

KIMURA, K .

JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (05) :3429-3441

[8] Density functional calculations of the vibronic structure of electronic absorption spectra [J].

Dierksen, M ;

Grimme, S .

JOURNAL OF CHEMICAL PHYSICS, 2004, 120 (08) :3544-3554

[9]

Frisch M. J., 2016, Gaussian 03 Revision B.03

[10] Experimental and theoretical characterization of the S-1-S-0 transition of benzo[a]pyrene [J].

Gittins, CM ;

Rohlfing, EA ;

Rohlfing, CM .

JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (17) :7323-7335

← 1 2 3 4 5 →