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The structures of the cyclic-C3H radical — an interstellar molecule

✍ Scribed by Hiroya Yamagishi; Hiroshi Taiko; Satoshi Shimogawara; Akinori Murakami; Takeshi Noro; Kiyoshi Tanaka

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
387 KB
Volume
250
Category
Article
ISSN
0009-2614

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✦ Synopsis

The equilibrium structure of the cyclic C3H radical was obtained by ab initio computation. The total energy at a C~ optimum structure is lower than that of a C2v optimum structure by only l0 -4 hartree and the adiabatic potential surface for the antisymmetric motion is so flat that no locally bound vibrational level exists around the Cs minimum; the force constant for the CC antisymmetric stretching mode is about one sixth of that for the CC symmetric stretching mode.

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