Far-infrared spectra of dimethyl-ether and its 13C enriched isotopologues: The fundamental band of the C-O-C in plane bending mode, ν7

被引：5

作者：

Kutzer, P. ^{[1
]}

Weismann, D. ^{[2
]}

Wassmuth, B. ^{[1
]}

Pirali, O. ^{[3
]}

Roy, P. ^{[3
]}

Yamada, K. M. T. ^{[4
]}

Giesen, T. F. ^{[1
]}

机构：

[1] Univ Kassel, Inst Phys, Heinrich Plett Str 40, D-34132 Kassel, Germany

[2] Univ Kassel, Inst Chem, Heinrich Plett Str 40, D-34132 Kassel, Germany

[3] AILES Beamline Synchrotron SOLEIL, St Aubin BP 48, F-91192 Gif Sur Yvette, France

[4] AIST, EMRI, Onogawa 16-1, Tsukuba, Ibaraki 3058569, Japan

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2016年 / 329卷

关键词：

Dimethyl-ether; Far-infrared spectroscopy; Large amplitude motion; Isotopologue; Laboratory astrophysics; MICROWAVE-SPECTRUM; MOLECULES; ASSIGNMENTS; ISOTOPES; CCSD(T); RAMAN;

D O I：

10.1016/j.jms.2016.08.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

We recorded the nu(7) fundamental band of dimethyl-ether around 400 cm(-1) for the normal and C-13-enriched isotopologues using the Fourier transform spectrometer at the SOLEIL Synchrotron facility. For all three species P, Q and R branch-transitions up to J = 20 and K-a = 5 were assigned and the band origins and rotational parameters of Watson's A-reduced Hamiltonian have been determined by the least-squares fitting procedure. The line splitting due to the torsional tunneling is observed for low J transitions, which is attributed to the ro-vibrational interaction with the excited torsional states. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：28 / 34

页数：7

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