The millimeter wave spectrum of the 13C16O dimer

L. A. Surin; D. N. Fourzikov; B. S. Dumesh; G. Winnewisser; Jian Tang; A. R.W. McKellar

doi:10.1016/j.jms.2003.10.009

The millimeter wave spectrum of the ¹³C¹⁶O dimer

L. A. Surin, D. N. Fourzikov, B. S. Dumesh, G. Winnewisser, Jian Tang, A. R.W. McKellar

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

12 Citations (Scopus)

Abstract

The millimeter wave spectrum of the isotopically substituted CO dimer, (¹³C¹⁶O)₂, has been studied for the first time, confirming and extending a recent infrared study. Eighty-seven transitions in the 77-180 GHz region have been assigned and analyzed in terms of a model-independent term value scheme involving 57 rotational levels with J = 0-8. The levels can be classified into 7 "stacks" which have symmetry classifications of either A^-/B⁺ or A⁺/B ^- and K-values of either 0 or 1. For the normal isotope, symmetry and nuclear spin statistics cause alternate rotational levels to be missing, but for (¹³C¹⁶O)₂ all levels are present with an intensity alternation of 1:3 between A and B symmetries. The four A ^-/B⁺ stacks have not previously been observed, and the lowest of them establishes the tunneling splitting of (¹³C ¹⁶O)₂ to be 3.769cm^-1, slightly larger than the (¹²C¹⁶O)₂ value of 3.731cm^-1. A large amount of precise experimental data is now available for the CO dimer, which should lead to greater theoretical insight into its structure and tunneling dynamics. Crown copyright

Original language	English
Pages (from-to)	132-137
Number of pages	6
Journal	Journal of Molecular Spectroscopy
Volume	223
Issue number	2
DOIs	https://doi.org/10.1016/j.jms.2003.10.009
Publication status	Published - Feb 2004
Externally published	Yes

Keywords

Dimer
Millimeter
Van der Waals complex

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry

Access to Document

10.1016/j.jms.2003.10.009

Cite this

@article{e0116559504248aab6c7d5a1b747342a,

title = "The millimeter wave spectrum of the 13C16O dimer",

abstract = "The millimeter wave spectrum of the isotopically substituted CO dimer, (13C16O)2, has been studied for the first time, confirming and extending a recent infrared study. Eighty-seven transitions in the 77-180 GHz region have been assigned and analyzed in terms of a model-independent term value scheme involving 57 rotational levels with J = 0-8. The levels can be classified into 7 {"}stacks{"} which have symmetry classifications of either A-/B+ or A+/B - and K-values of either 0 or 1. For the normal isotope, symmetry and nuclear spin statistics cause alternate rotational levels to be missing, but for (13C16O)2 all levels are present with an intensity alternation of 1:3 between A and B symmetries. The four A -/B+ stacks have not previously been observed, and the lowest of them establishes the tunneling splitting of (13C 16O)2 to be 3.769cm-1, slightly larger than the (12C16O)2 value of 3.731cm-1. A large amount of precise experimental data is now available for the CO dimer, which should lead to greater theoretical insight into its structure and tunneling dynamics. Crown copyright",

keywords = "Dimer, Millimeter, Van der Waals complex",

author = "Surin, {L. A.} and Fourzikov, {D. N.} and Dumesh, {B. S.} and G. Winnewisser and Jian Tang and McKellar, {A. R.W.}",

note = "Funding Information: The work in Cologne was supported by the Deutsche Forschungsgemeinschaft (DFG) via Research Grant SFB-494 and by the Ministry of Science of the Land NRW. The support through a grant of RFBR (03 02 17478 and 03 02 006) is acknowledged by B.S.D.",

year = "2004",

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doi = "10.1016/j.jms.2003.10.009",

language = "English",

volume = "223",

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T1 - The millimeter wave spectrum of the 13C16O dimer

AU - Surin, L. A.

AU - Fourzikov, D. N.

AU - Dumesh, B. S.

AU - Winnewisser, G.

AU - Tang, Jian

AU - McKellar, A. R.W.

N1 - Funding Information: The work in Cologne was supported by the Deutsche Forschungsgemeinschaft (DFG) via Research Grant SFB-494 and by the Ministry of Science of the Land NRW. The support through a grant of RFBR (03 02 17478 and 03 02 006) is acknowledged by B.S.D.

PY - 2004/2

Y1 - 2004/2

N2 - The millimeter wave spectrum of the isotopically substituted CO dimer, (13C16O)2, has been studied for the first time, confirming and extending a recent infrared study. Eighty-seven transitions in the 77-180 GHz region have been assigned and analyzed in terms of a model-independent term value scheme involving 57 rotational levels with J = 0-8. The levels can be classified into 7 "stacks" which have symmetry classifications of either A-/B+ or A+/B - and K-values of either 0 or 1. For the normal isotope, symmetry and nuclear spin statistics cause alternate rotational levels to be missing, but for (13C16O)2 all levels are present with an intensity alternation of 1:3 between A and B symmetries. The four A -/B+ stacks have not previously been observed, and the lowest of them establishes the tunneling splitting of (13C 16O)2 to be 3.769cm-1, slightly larger than the (12C16O)2 value of 3.731cm-1. A large amount of precise experimental data is now available for the CO dimer, which should lead to greater theoretical insight into its structure and tunneling dynamics. Crown copyright

AB - The millimeter wave spectrum of the isotopically substituted CO dimer, (13C16O)2, has been studied for the first time, confirming and extending a recent infrared study. Eighty-seven transitions in the 77-180 GHz region have been assigned and analyzed in terms of a model-independent term value scheme involving 57 rotational levels with J = 0-8. The levels can be classified into 7 "stacks" which have symmetry classifications of either A-/B+ or A+/B - and K-values of either 0 or 1. For the normal isotope, symmetry and nuclear spin statistics cause alternate rotational levels to be missing, but for (13C16O)2 all levels are present with an intensity alternation of 1:3 between A and B symmetries. The four A -/B+ stacks have not previously been observed, and the lowest of them establishes the tunneling splitting of (13C 16O)2 to be 3.769cm-1, slightly larger than the (12C16O)2 value of 3.731cm-1. A large amount of precise experimental data is now available for the CO dimer, which should lead to greater theoretical insight into its structure and tunneling dynamics. Crown copyright

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