PMID: 11345252May 10, 2001Paper

Carbon chains and rings in the laboratory and in space

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
P Thaddeus, M C McCarthy

Abstract

Seventy-seven reactive organic molecules of astrophysical interest have been identified in a supersonic molecular beam, 73 in the radio band by Fourier-transform microwave spectroscopy, four in the optical by laser cavity ringdown spectroscopy. Most are linear carbon chains, but six consist of carbon chains attached to the compact, highly polar C3 ring, and two are rhomboidal cyclic configurations of SiC3. The laboratory astrophysics of the radio molecules is complete for the time being, in the sense that essentially all the rotational transitions of current interest to radio astronomy (including hyperfine structure when present) can now be calculated to a small fraction of 1 km s(-1) in equivalent radial velocity; six of the radio molecules have already been detected in space on the basis of the present data. The FTM spectrometer employed in this work is far from fundamental limits of sensitivity, so many more molecules can probably be found by refinements of present techniques. The density of reactive molecules in our supersonic beam is generally high by the standards of laser spectroscopy, and many of the radio molecules probably have detectable optical transitions which we are attempting to find, largely motivated by the lo...Continue Reading

References

Dec 18, 1992·Chemical Physics Letters·S A Maluendes, A D McLean

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Citations

Mar 7, 2005·Physical Chemistry Chemical Physics : PCCP·H DingJ P Maier
Aug 9, 2006·Proceedings of the National Academy of Sciences of the United States of America·M C McCarthyP Thaddeus
Feb 12, 2015·The Journal of Chemical Physics·I Couturier-TamburelliR Kołos
Jun 8, 2013·The Journal of Chemical Physics·Yanxin ZhangJinglai Zhang
Aug 3, 2014·The Journal of Chemical Physics·D L KokkinM C McCarthy
Aug 28, 2007·Journal of Computational Chemistry·Wei KanYi-Qun Wu
Dec 17, 2014·The Journal of Physical Chemistry. a·Arghya ChakrabortyJohn P Maier
Dec 3, 2008·The Journal of Chemical Physics·V RudnevJ P Maier
Nov 5, 2005·The Journal of Chemical Physics·Giulia de PetrisMarzio Rosi
Jul 5, 2017·Physical Chemistry Chemical Physics : PCCP·Venkatesan S Thimmakondu, Amir Karton
Dec 12, 2017·ChemistryOpen·Esther RozentalShmaryahu Hoz
Dec 18, 2008·Physical Chemistry Chemical Physics : PCCP·Miklos Kertesz, Shujiang Yang
Dec 26, 2018·Proceedings of the National Academy of Sciences of the United States of America·Lyuzhou YeShaul Mukamel
Mar 23, 2021·The Journal of Physical Chemistry. a·Michael C McCarthy, Brett A McGuire
Jun 19, 2009·The Journal of Physical Chemistry. a·Ranjini RaghunandanJohn P Maier
Aug 1, 2008·The Journal of Physical Chemistry. a·Fabio Pichierri
Jul 15, 2021·The Journal of Physical Chemistry. a·Sederra D RossNeil J Reilly
Aug 31, 2018·The Journal of Physical Chemistry. a·Wenhao Sun, Jennifer van Wijngaarden
Jan 16, 2018·The Journal of Physical Chemistry. a·Neil J ReillyTimothy W Schmidt
Sep 6, 2017·The Journal of Physical Chemistry. a·Urszula SzczepaniakClaudine Crépin
Jan 7, 2020·The Journal of Physical Chemistry. a·Nisha JobVenkatesan S Thimmakondu
Dec 12, 2007·The Journal of Physical Chemistry. a·Shujiang Yang, Miklos Kertesz
Dec 6, 2002·Journal of the American Chemical Society·L'ubos HornýHenry F Schaefer III
Jul 28, 2007·Journal of the American Chemical Society·Leonid BelauMichael A Duncan
Oct 7, 2021·The Journal of Physical Chemistry. a·Sederra D RossNeil J Reilly

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