Rotational analysis and isotopic effects in the A 2Π u-X 2Π g system for the 18O + 2 cation

Lun hua Deng; Chuan liang Li; Wen yan He; Yuan yue Zhu; Xiao hua Yang; Yang qin Chen

doi:10.1016/j.jqsrt.2012.04.012

Rotational analysis and isotopic effects in the A ²Π _u-X ²Π _g system for the ¹⁸O ⁺ ₂ cation

Lun hua Deng^*
, Chuan liang Li
, Wen yan He
, Yuan yue Zhu
, Xiao hua Yang
, Yang qin Chen

^*Corresponding author for this work

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

3 Scopus citations

Abstract

The Doppler-limited absorption spectrum of the ¹⁸O ⁺ ₂ cation was observed using a Ti-Sapphire laser system (in region of 12060-12800cm ^-1) by optical heterodyne velocity modulation absorption spectroscopy. Precise molecular constants (B _υ, D _υ, p _υ, q _υ, γ _υ) were obtained for the involved levels by fitting spectral lines of (3, 20) and (4, 21) bands in the Second Negative system (A ²Π _u-X ²Π _g) using a nonlinear least-squares fitting procedure with the standard Hamiltonians. The vibrational assignment was based on the isotopic effect. More detailed isotopic effects on the molecular constants were discussed as well.

Original language	English
Pages (from-to)	1547-1552
Number of pages	6
Journal	Journal of Quantitative Spectroscopy and Radiative Transfer
Volume	113
Issue number	12
DOIs	https://doi.org/10.1016/j.jqsrt.2012.04.012
State	Published - Aug 2012
Externally published	Yes

Keywords

Isotope effect
O cation
The Second Negative system

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10.1016/j.jqsrt.2012.04.012

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title = "Rotational analysis and isotopic effects in the A 2Π u-X 2Π g system for the 18O + 2 cation",

abstract = "The Doppler-limited absorption spectrum of the 18O + 2 cation was observed using a Ti-Sapphire laser system (in region of 12060-12800cm -1) by optical heterodyne velocity modulation absorption spectroscopy. Precise molecular constants (B υ, D υ, p υ, q υ, γ υ) were obtained for the involved levels by fitting spectral lines of (3, 20) and (4, 21) bands in the Second Negative system (A 2Π u-X 2Π g) using a nonlinear least-squares fitting procedure with the standard Hamiltonians. The vibrational assignment was based on the isotopic effect. More detailed isotopic effects on the molecular constants were discussed as well.",

keywords = "Isotope effect, O cation, The Second Negative system",

author = "Deng, \{Lun hua\} and Li, \{Chuan liang\} and He, \{Wen yan\} and Zhu, \{Yuan yue\} and Yang, \{Xiao hua\} and Chen, \{Yang qin\}",

year = "2012",

month = aug,

doi = "10.1016/j.jqsrt.2012.04.012",

language = "英语",

volume = "113",

pages = "1547--1552",

journal = "Journal of Quantitative Spectroscopy and Radiative Transfer",

issn = "0022-4073",

publisher = "Elsevier Ltd",

number = "12",

}

TY - JOUR

T1 - Rotational analysis and isotopic effects in the A 2Π u-X 2Π g system for the 18O + 2 cation

AU - Deng, Lun hua

AU - Li, Chuan liang

AU - He, Wen yan

AU - Zhu, Yuan yue

AU - Yang, Xiao hua

AU - Chen, Yang qin

PY - 2012/8

Y1 - 2012/8

N2 - The Doppler-limited absorption spectrum of the 18O + 2 cation was observed using a Ti-Sapphire laser system (in region of 12060-12800cm -1) by optical heterodyne velocity modulation absorption spectroscopy. Precise molecular constants (B υ, D υ, p υ, q υ, γ υ) were obtained for the involved levels by fitting spectral lines of (3, 20) and (4, 21) bands in the Second Negative system (A 2Π u-X 2Π g) using a nonlinear least-squares fitting procedure with the standard Hamiltonians. The vibrational assignment was based on the isotopic effect. More detailed isotopic effects on the molecular constants were discussed as well.

AB - The Doppler-limited absorption spectrum of the 18O + 2 cation was observed using a Ti-Sapphire laser system (in region of 12060-12800cm -1) by optical heterodyne velocity modulation absorption spectroscopy. Precise molecular constants (B υ, D υ, p υ, q υ, γ υ) were obtained for the involved levels by fitting spectral lines of (3, 20) and (4, 21) bands in the Second Negative system (A 2Π u-X 2Π g) using a nonlinear least-squares fitting procedure with the standard Hamiltonians. The vibrational assignment was based on the isotopic effect. More detailed isotopic effects on the molecular constants were discussed as well.

KW - Isotope effect

KW - O cation

KW - The Second Negative system

UR - https://www.scopus.com/pages/publications/84860885008

U2 - 10.1016/j.jqsrt.2012.04.012

DO - 10.1016/j.jqsrt.2012.04.012

M3 - 文章

AN - SCOPUS:84860885008

SN - 0022-4073

VL - 113

SP - 1547

EP - 1552

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

JF - Journal of Quantitative Spectroscopy and Radiative Transfer

IS - 12

ER -

Rotational analysis and isotopic effects in the A ²Π _u-X ²Π _g system for the ¹⁸O ⁺ ₂ cation

Abstract

Keywords

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