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A number of small, cyclic molecules containing several carbon atoms in their ring structure has been identified in different astrophysical environments. It is the aim of this work to study important molecular properties of such heterocyclic species bearing an iron atom, which is one of the most abundant cosmic elements. Quantum theoretical calculations based on a density functional approach have been...
Structures of H2CN and CH2CN molecules are similar to that of H2CO molecule. The H2CO has shown anomalous absorption for its transition 111–110 at 4.8 GHz in a number of cool molecular clouds. Though the molecules H2CN and CH2CN have been identified in TMC-1 and Sgr B2 through some transitions in ortho as well as in para species, here we have investigated the condition under which transitions 111–1...
Laboratory detection of four isomers of C 5 H 2 molecule have been reported by Gottlieb et al. [Gottlieb, C.A., McCarthy, M.C., Gordon, V.D., Chakan, J.M., Apponi, A.J., Thaddeus, P., 1998. ApJ 509, L141]. Two transitions 3 13 −2 12 and 3 03 −2 02 at 19.147 and 19.606GHz, respectively, of c-C 5 H 2 (isomer 1) have been detected in TMC-1...
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