MARVEL analysis of the measured high-resolution rovibrational spectra of C2H2

Katy L. Chubb, Megan Joseph, Jack Franklin, Naail Choudhury, Tibor Furtenbacher, Attila G. Csaszar, Glenda Gaspard, Patari Oguoko, Adam Kelly, Sergei N. Yurchenko, Jonathan Tennyson, Clara Sousa-Silva

Research output: Contribution to journalArticlepeer-review

Abstract

Rotation-vibration energy levels are determined for the electronic ground state of the acetylene molecule, (C2H2)-C-12, using the Measured Active Rotational-Vibrational Energy Levels (MARVEL) technique. 37,813 measured transitions from 61 publications are considered. The distinct components of the spectroscopic network linking ortho and para states of the molecule are considered separately. The 20,717 ortho and 17,096 para transitions measured experimentally are used to determine 6013 ortho and 5200 para energy levels. The MARVEL results are compared with alternative compilations based on the use of effective Hamiltonians. (C) 2017 The Authors. Published by Elsevier Ltd.

Original languageEnglish
Pages (from-to)42-55
Number of pages14
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume204
DOIs
Publication statusPublished - Jan 2018

Keywords

  • ROTATIONAL-VIBRATIONAL SPECTRA
  • IUPAC CRITICAL-EVALUATION
  • TRANSITION WAVE-NUMBERS
  • LINE INTENSITY MEASUREMENTS
  • DIODE-LASER SPECTROSCOPY
  • TRANSFORM ABSORPTION-SPECTRUM
  • STIMULATED RAMAN PROCESS
  • STRETCH-BEND LEVELS
  • MU-M REGION
  • ENERGY-LEVELS

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