Determination of the binding energies in aromatic clusters: resonance-enhanced multi-photon ionization and mass analyzed threshold ionization investigation of the dichlorobenzene-argon complexes

被引：2

作者：

Gaber, Angela ^{[1
]}

Riese, Mikko ^{[1
,2
]}

Witte, Frank ^{[1
]}

Grotemeyer, Juergen ^{[1
]}

机构：

[1] Univ Kiel, Kiel, Germany

[2] Photon Sci Inst, Manchester M13 9PL, Lancs, England

来源：

EUROPEAN JOURNAL OF MASS SPECTROMETRY | 2009年 / 15卷 / 02期

关键词：

REMPI; MATI; vdW-cluster; ionization; excitation; DER-WAALS COMPLEXES; CENTER-DOT-AR; P-DIFLUOROBENZENE ARGON; TOLUENE RARE-GAS; DISSOCIATION-ENERGY; BENZENE-AR; VIBRATIONAL PREDISSOCIATION; PHOTOELECTRON-SPECTROSCOPY; 2-PHOTON IONIZATION; GROUND-STATE;

D O I：

10.1255/ejms.990

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Resonance-enhanced multi-photon ionization (REMPI) and mass-analyzed threshold ionization (MATI) spectroscopic investigations were applied to the van der Waals complexes of the three dichlorobenzene isomers with argon. From the REMPI spectra it is concluded that the argon atom is shifted towards the chlorine atoms during excitation for the ortho and the meta isomers white it stays in the middle of the ring for the para isomer. From the MATI spectra it was possible to determine the binding energies in the ion ground state to 617 cm(-1) +/- 15 cm(-1), 529 cm(-1) +/- 125 cm(-1) and 581 cm(-1) +/- 76 cm(-1) for the para, the meta and the ortho isomer, respectively. Together with theoretical calculations binding energies in the neutral ground state were determined to be 426 cm(-1) +/- 16 cm(-1) for all the three isomers.

引用

页码：349 / 359

页数：11

共 45 条

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