Spectroscopic identification of higher-order rare gas-dihalogen complexes with different geometries

He2,3...Br2 and He 2,3.....ICl

David S. Boucher, Joshua Paul Darr, David B. Strasfeld, Richard A. Loomis

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Rovibronic transitions of multiple conformers of the He2..... 79Br2X, v = 0), He3....79Br 2(X, v = 0), He2...I35Cl(X, v = 0), and He 3.....I35Cl(X, v = 0) complexes stabilized in a pulsed, supersonic expansion are observed in action spectra recorded in the B-X region of the dihalogens. In addition to features associated with He2.. 79Br2 and He2....I35Cl complexes with the rare gas atoms localized in the toroidal potential well lying in a plane perpendicular to the dihalogen bond, those associated with a ground-state conformer that has one He atom localized in the toroidal potential and the other He atom localized in the linear well at the end of the dihalogen moiety are also identified. Transitions of at least three conformers of the He 3...Br2 complex and two conformers of the He 3···ICl complex are also observed. The relative populations of the different conformers are found to depend on where along the supersonic expansion the spectra are recorded, and thus on the local temperature regime sampled. The He2....I79Br2 and He 2....I35Cl conformers with one He atom in each well are found to be the more stable conformers.

Original languageEnglish (US)
Pages (from-to)13393-13401
Number of pages9
JournalJournal of Physical Chemistry A
Volume112
Issue number51
DOIs
StatePublished - Dec 25 2008

Fingerprint

Noble Gases
rare gases
Atoms
Geometry
geometry
atoms
expansion
Ground state
ground state
Temperature
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Spectroscopic identification of higher-order rare gas-dihalogen complexes with different geometries : He2,3...Br2 and He 2,3.....ICl. / Boucher, David S.; Darr, Joshua Paul; Strasfeld, David B.; Loomis, Richard A.

In: Journal of Physical Chemistry A, Vol. 112, No. 51, 25.12.2008, p. 13393-13401.

Research output: Contribution to journalArticle

@article{3b98e8647e9a4c12b53e7392aa8f2f5e,
title = "Spectroscopic identification of higher-order rare gas-dihalogen complexes with different geometries: He2,3...Br2 and He 2,3.....ICl",
abstract = "Rovibronic transitions of multiple conformers of the He2..... 79Br2X, v = 0), He3....79Br 2(X, v = 0), He2...I35Cl(X, v = 0), and He 3.....I35Cl(X, v = 0) complexes stabilized in a pulsed, supersonic expansion are observed in action spectra recorded in the B-X region of the dihalogens. In addition to features associated with He2.. 79Br2 and He2....I35Cl complexes with the rare gas atoms localized in the toroidal potential well lying in a plane perpendicular to the dihalogen bond, those associated with a ground-state conformer that has one He atom localized in the toroidal potential and the other He atom localized in the linear well at the end of the dihalogen moiety are also identified. Transitions of at least three conformers of the He 3...Br2 complex and two conformers of the He 3···ICl complex are also observed. The relative populations of the different conformers are found to depend on where along the supersonic expansion the spectra are recorded, and thus on the local temperature regime sampled. The He2....I79Br2 and He 2....I35Cl conformers with one He atom in each well are found to be the more stable conformers.",
author = "Boucher, {David S.} and Darr, {Joshua Paul} and Strasfeld, {David B.} and Loomis, {Richard A.}",
year = "2008",
month = "12",
day = "25",
doi = "10.1021/jp808368j",
language = "English (US)",
volume = "112",
pages = "13393--13401",
journal = "Journal of Physical Chemistry A",
issn = "1089-5639",
publisher = "American Chemical Society",
number = "51",

}

TY - JOUR

T1 - Spectroscopic identification of higher-order rare gas-dihalogen complexes with different geometries

T2 - He2,3...Br2 and He 2,3.....ICl

AU - Boucher, David S.

AU - Darr, Joshua Paul

AU - Strasfeld, David B.

AU - Loomis, Richard A.

PY - 2008/12/25

Y1 - 2008/12/25

N2 - Rovibronic transitions of multiple conformers of the He2..... 79Br2X, v = 0), He3....79Br 2(X, v = 0), He2...I35Cl(X, v = 0), and He 3.....I35Cl(X, v = 0) complexes stabilized in a pulsed, supersonic expansion are observed in action spectra recorded in the B-X region of the dihalogens. In addition to features associated with He2.. 79Br2 and He2....I35Cl complexes with the rare gas atoms localized in the toroidal potential well lying in a plane perpendicular to the dihalogen bond, those associated with a ground-state conformer that has one He atom localized in the toroidal potential and the other He atom localized in the linear well at the end of the dihalogen moiety are also identified. Transitions of at least three conformers of the He 3...Br2 complex and two conformers of the He 3···ICl complex are also observed. The relative populations of the different conformers are found to depend on where along the supersonic expansion the spectra are recorded, and thus on the local temperature regime sampled. The He2....I79Br2 and He 2....I35Cl conformers with one He atom in each well are found to be the more stable conformers.

AB - Rovibronic transitions of multiple conformers of the He2..... 79Br2X, v = 0), He3....79Br 2(X, v = 0), He2...I35Cl(X, v = 0), and He 3.....I35Cl(X, v = 0) complexes stabilized in a pulsed, supersonic expansion are observed in action spectra recorded in the B-X region of the dihalogens. In addition to features associated with He2.. 79Br2 and He2....I35Cl complexes with the rare gas atoms localized in the toroidal potential well lying in a plane perpendicular to the dihalogen bond, those associated with a ground-state conformer that has one He atom localized in the toroidal potential and the other He atom localized in the linear well at the end of the dihalogen moiety are also identified. Transitions of at least three conformers of the He 3...Br2 complex and two conformers of the He 3···ICl complex are also observed. The relative populations of the different conformers are found to depend on where along the supersonic expansion the spectra are recorded, and thus on the local temperature regime sampled. The He2....I79Br2 and He 2....I35Cl conformers with one He atom in each well are found to be the more stable conformers.

UR - http://www.scopus.com/inward/record.url?scp=58149173969&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=58149173969&partnerID=8YFLogxK

U2 - 10.1021/jp808368j

DO - 10.1021/jp808368j

M3 - Article

VL - 112

SP - 13393

EP - 13401

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

SN - 1089-5639

IS - 51

ER -