Table A.2
Peak positions, FWHMs, and band strengths of the HDO O-D stretching mode at ~4.1 µm at temperatures from 15 to 150 K. We estimate uncertainties of 2 cm−1 for the peak positions/FWHMs and 20% for the band strengths of the amorphous HDO ice, and 0.5 cm−1 for the peak positions/FWHMs and 10% for the band strengths of the crystalline HDO ice.
| Ice phase | T(K) | Peak | FWHM |  |
||
|---|---|---|---|---|---|---|
| (cm−1) | (µm) | (cm−1) | (µm) | (1017 cm molec−1) | ||
| Amorphous | 15 | 2451.3 | 4.080 | 98.7 | 0.164 | 4.2 |
| 25 | 2450.5 | 4.081 | 99.5 | 0.166 | 4.3 | |
| 35 | 2448.8 | 4.084 | 97.3 | 0.162 | 4.6 | |
| 45 | 2446.5 | 4.087 | 93.2 | 0.156 | 5.1 | |
| 55 | 2444.3 | 4.091 | 88.1 | 0.147 | 5.5 | |
| 65 | 2442.2 | 4.095 | 82.7 | 0.139 | 5.9 | |
| 75 | 2440.6 | 4.097 | 77.6 | 0.130 | 6.3 | |
| 85 | 2439.5 | 4.099 | 73.2 | 0.123 | 6.6 | |
| 95 | 2439.1 | 4.100 | 69.7 | 0.117 | 6.8 | |
| 105 | 2439.2 | 4.100 | 67.2 | 0.113 | 6.9 | |
| 115 | 2439.7 | 4.099 | 65.5 | 0.110 | 7.0 | |
| 125 | 2440.4 | 4.098 | 64.3 | 0.108 | 7.0 | |
| 135 | 2440.9 | 4.097 | 63.1 | 0.106 | 7.1 | |
| Crystalline | 15 | 2412.6 | 4.145 | 20.5 | 0.035 | 6.9 |
| 25 | 2412.9 | 4.144 | 20.5 | 0.035 | 6.9 | |
| 47 | 2413.8 | 4.143 | 20.5 | 0.035 | 6.9 | |
| 68 | 2415.5 | 4.140 | 20.5 | 0.035 | 6.8 | |
| 90 | 2417.5 | 4.137 | 20.7 | 0.035 | 6.7 | |
| 111 | 2419.9 | 4.132 | 21.5 | 0.037 | 6.6 | |
| 133 | 2422.5 | 4.128 | 21.9 | 0.037 | 6.5 | |
| 150 | 2424.0 | 4.125 | 22.7 | 0.039 | 6.4 | |
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