High-Resolution Near-Infrared Spectroscopy of H 3 + Above the Barrier to Linearity


Twenty transitions from the fourth overtone and combination bands of H3 + (5ν2 , 5ν2 , 5ν2 , 2ν1+2ν2 ,. . . ) have been observed. These transitions, which are more than 4600 times weaker than the fundamental band, occur in the near-infrared region and probe energy levels above the barrier to linearity (>10,000 cm−1), the regime in which H3 + has enough… (More)

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