Fourier-transform microwave spectroscopy of the H 2-HCN complex

Masazumi Ishiguro, Kensuke Harada, Keiichi Tanaka, Takehiko Tanaka, Yoshihiro Sumiyoshi, Yasuki Endo

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Fourier-transform microwave spectroscopy was applied to observe the J = 1-0 rotational transition of the H 2-HCN complex for both the ortho- and para-H 2 species to obtain improved molecular constants by an analysis combined with the millimeter-wave data. It was confirmed that the para- and ortho-H 2 species have different configurations: namely H 2 is attached to the H end of HCN in the former, while to the N end in the latter. For the ortho-H 2 species, the hyperfine splitting due to the magnetic interaction between the hydrogen nuclei was observed to give the nuclear spin-spin coupling constant d H = 54.6(38) kHz.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalChemical Physics Letters
Publication statusPublished - Dec 3 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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