Laboratory Rotational Spectrum and Radio-Astronomical Search of Acetoin

Chunguo Duan; Yang Zheng; Wanying Cheng; Juncheng Lei; Juan Li; Donghui Quan; Junzhi Wang; Junhua Chen; Jiayi Li; Xuefang Xu; Qian Gou

doi:10.1021/acs.jpca.3c00674

Laboratory Rotational Spectrum and Radio-Astronomical Search of Acetoin

Chunguo Duan
, Yang Zheng
, Wanying Cheng
, Juncheng Lei
, Juan Li
, Donghui Quan
, Junzhi Wang
, Junhua Chen
, Jiayi Li
, Xuefang Xu^*
, Qian Gou^*

^*Corresponding author for this work

Chongqing University
SINOPEC
CAS - Shanghai Astronomical Observatory
Zhejiang Lab
Guangxi University
Guizhou Medical University

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

Abstract

The rotational spectrum of acetoin (3-hydroxy-2-butanone) was measured by using Fourier transform microwave spectroscopy with the aid of quantum chemical calculations. Only one conformer of acetoin was detected in the pulsed jet, whose spectrum featured the splittings raised from the internal rotation of the methyl top linking to the C═O group. Based on the spectroscopic result, radio-astronomical searches for acetoin were carried out toward the massive star-forming region Sgr B2(N) using the Shanghai Tianma 65 m and IRAM 30 m radio telescopes. No lines belonging to acetoin were detected toward Sgr B2(N). Its upper limit of column density was calculated.

Original language	English
Pages (from-to)	5772-5778
Number of pages	7
Journal	Journal of Physical Chemistry A
Volume	127
Issue number	28
DOIs	https://doi.org/10.1021/acs.jpca.3c00674
Publication status	Published - 20 Jul 2023
Externally published	Yes

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title = "Laboratory Rotational Spectrum and Radio-Astronomical Search of Acetoin",

abstract = "The rotational spectrum of acetoin (3-hydroxy-2-butanone) was measured by using Fourier transform microwave spectroscopy with the aid of quantum chemical calculations. Only one conformer of acetoin was detected in the pulsed jet, whose spectrum featured the splittings raised from the internal rotation of the methyl top linking to the C═O group. Based on the spectroscopic result, radio-astronomical searches for acetoin were carried out toward the massive star-forming region Sgr B2(N) using the Shanghai Tianma 65 m and IRAM 30 m radio telescopes. No lines belonging to acetoin were detected toward Sgr B2(N). Its upper limit of column density was calculated.",

author = "Chunguo Duan and Yang Zheng and Wanying Cheng and Juncheng Lei and Juan Li and Donghui Quan and Junzhi Wang and Junhua Chen and Jiayi Li and Xuefang Xu and Qian Gou",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

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day = "20",

doi = "10.1021/acs.jpca.3c00674",

language = "English",

volume = "127",

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TY - JOUR

T1 - Laboratory Rotational Spectrum and Radio-Astronomical Search of Acetoin

AU - Duan, Chunguo

AU - Zheng, Yang

AU - Cheng, Wanying

AU - Lei, Juncheng

AU - Li, Juan

AU - Quan, Donghui

AU - Wang, Junzhi

AU - Chen, Junhua

AU - Li, Jiayi

AU - Xu, Xuefang

AU - Gou, Qian

PY - 2023/7/20

Y1 - 2023/7/20

N2 - The rotational spectrum of acetoin (3-hydroxy-2-butanone) was measured by using Fourier transform microwave spectroscopy with the aid of quantum chemical calculations. Only one conformer of acetoin was detected in the pulsed jet, whose spectrum featured the splittings raised from the internal rotation of the methyl top linking to the C═O group. Based on the spectroscopic result, radio-astronomical searches for acetoin were carried out toward the massive star-forming region Sgr B2(N) using the Shanghai Tianma 65 m and IRAM 30 m radio telescopes. No lines belonging to acetoin were detected toward Sgr B2(N). Its upper limit of column density was calculated.

AB - The rotational spectrum of acetoin (3-hydroxy-2-butanone) was measured by using Fourier transform microwave spectroscopy with the aid of quantum chemical calculations. Only one conformer of acetoin was detected in the pulsed jet, whose spectrum featured the splittings raised from the internal rotation of the methyl top linking to the C═O group. Based on the spectroscopic result, radio-astronomical searches for acetoin were carried out toward the massive star-forming region Sgr B2(N) using the Shanghai Tianma 65 m and IRAM 30 m radio telescopes. No lines belonging to acetoin were detected toward Sgr B2(N). Its upper limit of column density was calculated.

UR - https://www.scopus.com/pages/publications/85165518150

U2 - 10.1021/acs.jpca.3c00674

DO - 10.1021/acs.jpca.3c00674

M3 - Article

C2 - 37418276

AN - SCOPUS:85165518150

SN - 1089-5639

VL - 127

SP - 5772

EP - 5778

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 28

ER -

Laboratory Rotational Spectrum and Radio-Astronomical Search of Acetoin

Abstract

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