Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...483l.135t&link_type=abstract
Astrophysical Journal Letters v.483, p.L135
Astronomy and Astrophysics
Astronomy
11
Ism: Molecules, Line: Identification, Molecular Data, Molecular Processes, Radio Lines: Ism
Scientific paper
The highly polar ring-chain C5H2, a carbene with a singlet electronic ground state, has been detected with a Fourier transform molecular beam microwave spectrometer in the same diacetylene-neon discharge in which a carbene with the same elemental formula but a linear backbone was recently found. Thirteen a- and b-type rotational transitions between 6 and 27 GHz were measured to 1--2 kHz, and precise values of the three rotational constants and two centrifugal distortion constants were determined. With these, the entire microwave and millimeter-wave spectrum of C5H2 can be calculated to an accuracy of 0.2 km s-1 or better. The identity of the new molecule as C5H2, which is fairly certain because of the close agreement between the measured rotational constants and those calculated ab initio, is conclusively confirmed by detection of the totally deuterated and two partially deuterated isotopic species at exactly the expected isotope shifts.
Gottlieb Carl A.
McCarthy Mary C.
Thaddeus Patrick
Travers M. J.
No associations
LandOfFree
Laboratory Detection of the Ring-Chain Molecule C 5H 2 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Laboratory Detection of the Ring-Chain Molecule C 5H 2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laboratory Detection of the Ring-Chain Molecule C 5H 2 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1185260