Rotational spectra of indole in the lowest vibrational states

被引：7

作者：

Vavra, K. ^{[1
]}

Lukova, K. ^{[1
]}

Kania, P. ^{[1
]}

Koucky, J. ^{[1
]}

Urban, S. ^{[1
]}

机构：

[1] Univ Chem & Technol, Dept Analyt Chem, Tech 5, Prague 16628 6, Czech Republic

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2019年 / 363卷

关键词：

POLYCYCLIC AROMATIC-HYDROCARBONS; MICROWAVE-SPECTRUM; MAGELLANIC-CLOUD; BANDS; ASSIGNMENT; EXTINCTION; CONSTANTS;

D O I：

10.1016/j.jms.2019.111175

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：

The millimetre- and submillimetre-wave rotational spectra of indole (C8H7N) have been recorded in several frequency regions from 140 to 715 GHz. Nearly 6000 rotational transitions corresponding to the ground and two vibrationally excited states v(42) and v(41) were assigned and analysed using the A-reduced Hamiltonian. All newly measured transitions were fitted together with the previously published data yielding significantly improved rotational and centrifugal distortion constants. Such highly precise molecular parameters could support future searches of the spectral features of indole in the interstellar medium as this molecule is the simplest prototype of polycyclic N-substituted aromatic hydrocarbons (PANHs), the possible sources of unidentified infrared emission in the interstellar medium. (C) 2019 Elsevier Inc. All rights reserved.

引用

页数：5

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