Abstract
© 2015 Author(s).Transitions from selected nd Rydberg states of H2 to n′p/f Rydberg series converging on the lowest two (N+ = 0 and 2) rotational levels of the X + 2 Σ g + (v+ = 0) ground state of para-H 2 + have been measured in the range 1-7.4 THz using a laser-based, pulsed, narrow-band source of submillimeter-wave radiation. The analysis of the spectra by multichannel quantum-defect theory (MQDT) has allowed a complete interpretation of the fine structures of the Rydberg series and their dependence on the principal quantum number. The extrapolation of the series to their limits with MQDT has enabled the determination of the first rotational interval of para-H 2 +, which is 174.23671(7) cm-1 (5223485.1(2.3) MHz).
Original language | English |
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Journal | Journal of Chemical Physics |
Volume | 142 |
Issue number | 6 |
DOIs | |
Publication status | Published - 14 Feb 2015 |
Externally published | Yes |