Abstract
A high-resolution spectrum of hydrogen telluride (H(2)Te) was recorded in the 4050-7000 cm(-1) region. Two bands could be observed at 4900 and 5980 cm(-1) and were assigned as the (20(+/-),1) <-- (00(+),0) and (30(+/-),0) <-- (00(+),0) bands, respectively. Rotational transitions of the two bands were assigned for the most abundant H(2) (130)Te and H(2) (128)Te isotopic species. Line position analyses were carried out to investigate a possible local mode behavior. For the first time we found in H(2)Te strong experimental evidence for such a behavior for the higher-lying band as its two upper vibrational states are only 0.027 and 0.032 cm(-1) apart for the H(2) (130)Te and H(2) (128)Te isotopic species, respectively.
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