Mass-selected molecular ion spectra: (1+1)-Photodissociation spectroscopy of CH3I+ and CD3I+

R. Weinkauf; K. Walter; U. Boesl; E. W. Schlag

doi:10.1016/0009-2614(87)85022-4

Mass-selected molecular ion spectra: (1+1)-Photodissociation spectroscopy of CH₃I⁺ and CD₃I⁺

R. Weinkauf, K. Walter, U. Boesl, E. W. Schlag

Default

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

The first well resolved (1+1)-photodissociation spectra of molecular ions are presented. By separating the spectroscopic step (first photon) and the dissociation step (second photon) we could extend the accessible spectral region of CH₃I⁺ and CD₃I⁺ considerably. The ions are prepared in the vibrationless ground state by MPI in a supersonic molecular beam. A new detection technique is presented with high discrimination between wanted and unwanted ionic species. Furthermore, another new technique for unimolecular decay measurements delivers useful information for the assignment of the ion spectra. We found an improved assignment for CH₃I⁺ and CD₃I⁺ with consequences for molecular constants.

Original language	English
Pages (from-to)	267-276
Number of pages	10
Journal	Chemical Physics Letters
Volume	141
Issue number	4
DOIs	https://doi.org/10.1016/0009-2614(87)85022-4
State	Published - 13 Nov 1987

Access to Document

10.1016/0009-2614(87)85022-4

Cite this

@article{b184da673aa4423ba6b01411af31c387,

title = "Mass-selected molecular ion spectra: (1+1)-Photodissociation spectroscopy of CH3I+ and CD3I+",

abstract = "The first well resolved (1+1)-photodissociation spectra of molecular ions are presented. By separating the spectroscopic step (first photon) and the dissociation step (second photon) we could extend the accessible spectral region of CH3I+ and CD3I+ considerably. The ions are prepared in the vibrationless ground state by MPI in a supersonic molecular beam. A new detection technique is presented with high discrimination between wanted and unwanted ionic species. Furthermore, another new technique for unimolecular decay measurements delivers useful information for the assignment of the ion spectra. We found an improved assignment for CH3I+ and CD3I+ with consequences for molecular constants.",

author = "R. Weinkauf and K. Walter and U. Boesl and Schlag, {E. W.}",

year = "1987",

month = nov,

day = "13",

doi = "10.1016/0009-2614(87)85022-4",

language = "English",

volume = "141",

pages = "267--276",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "4",

}

TY - JOUR

T1 - Mass-selected molecular ion spectra

T2 - (1+1)-Photodissociation spectroscopy of CH3I+ and CD3I+

AU - Weinkauf, R.

AU - Walter, K.

AU - Boesl, U.

AU - Schlag, E. W.

PY - 1987/11/13

Y1 - 1987/11/13

N2 - The first well resolved (1+1)-photodissociation spectra of molecular ions are presented. By separating the spectroscopic step (first photon) and the dissociation step (second photon) we could extend the accessible spectral region of CH3I+ and CD3I+ considerably. The ions are prepared in the vibrationless ground state by MPI in a supersonic molecular beam. A new detection technique is presented with high discrimination between wanted and unwanted ionic species. Furthermore, another new technique for unimolecular decay measurements delivers useful information for the assignment of the ion spectra. We found an improved assignment for CH3I+ and CD3I+ with consequences for molecular constants.

AB - The first well resolved (1+1)-photodissociation spectra of molecular ions are presented. By separating the spectroscopic step (first photon) and the dissociation step (second photon) we could extend the accessible spectral region of CH3I+ and CD3I+ considerably. The ions are prepared in the vibrationless ground state by MPI in a supersonic molecular beam. A new detection technique is presented with high discrimination between wanted and unwanted ionic species. Furthermore, another new technique for unimolecular decay measurements delivers useful information for the assignment of the ion spectra. We found an improved assignment for CH3I+ and CD3I+ with consequences for molecular constants.

UR - http://www.scopus.com/inward/record.url?scp=0000744652&partnerID=8YFLogxK

U2 - 10.1016/0009-2614(87)85022-4

DO - 10.1016/0009-2614(87)85022-4

M3 - Article

AN - SCOPUS:0000744652

SN - 0009-2614

VL - 141

SP - 267

EP - 276

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4

ER -

Mass-selected molecular ion spectra: (1+1)-Photodissociation spectroscopy of CH₃I⁺ and CD₃I⁺

Abstract

Access to Document

Other files and links

Fingerprint

Cite this