Table A.1.
Dipole moment of transition, dissociation energy, cross section, and photolysis lifetime of diatomic molecules.
| Molecule | Channel | Dipole moment | Dissociation | Maximal photolysis | Photolysis lifetime | Peaks of speed of |
|---|---|---|---|---|---|---|
| of transition, u | energy, eV | cross section, cm2 | at 1 au, s metal | photolysis-generated | ||
| (corresponding | and H atoms, m s−1 | |||||
| wavelength, nm) | ||||||
| OH | X2Π → B2Σ+X2Π → A2Σ− | 0.35 (1st channel) 0.15 (2nd channel) | 4.45 4.4 ± 0.01 (g) | 1.4 × 10−18 (163.9) (3.39 ± 0.22)×10−18(g) | 2.0 × 105
 (h)
 (h) |
18 500 ± 3000 |
| LiO | X2Π → B2Σ− | 0.34 | 3.40 3.65 (a); 3.41 (n); 3.41 (j) 3.39 ± 0.22 (g); | 8 × 10−18 (337.5) | 28 5 (i); 140 (j); 170 (k) | 2200 ± 500 |
| NaO | X2Π → B2Σ− | 0.5 | 2.46 2.73 (a); 2.62 (n); 2.46 (j) 2.80 ± 0.04 (c); | 10.78 × 10−18 (432.5) | 5 3 (i); 60 (j) 70 (k); 18 (l) | 1200 ± 200 |
| KO | X2Σ+ → B2Σ− | 0.3 | 2.77 2.85 (a); 2.78 (j) 2.82 ± 0.13 (b) | 6.5 × 10−18 (417.5) | 14 60 (i); 30 (j) 70 (k) | 600 ± 150 |
| HCl | X1Σ+ → A1Π | 0.5 | 4.29 4.44 ± 0.02 (g) | 1.49 × 10−18 (140) 4.5 × 10−18 (150) (o) | 2.1 × 105; 1.4 × 105(h) | 20 000 ± 5000; 33 500 ± 200 |
| LiCl | X1Σ+ → A1ΠX1Σ+ → B1Σ+ | 0.29 (1st channel); 0.58 (2nd channel) | 4.66 4.88 (a) 4.80 ± 0.13 (d) | 23 × 10−18 (256) | 225 480 (m) | 2500 ± 600 |
| NaCl | X1Σ+ → A1ΠX1Σ+ → B1Σ+ | 0.25 (1st channel); 1.00 (2nd channel) | 3.92 4.22 (a) 4.26 ± 0.02 (g) | 38 × 10−18 (274) | 42 60 (m) | 1700 ± 200 |
| KCl | X1Σ+ → A1ΠX1Σ+ → B1Σ+ | 0.25 (1st channel); 0.77 (2nd channel) | 4.14 4.39 (a); 4.4 ± 0.02 (g) | 53 × 10−18 (277) | 52 140 (m) | 850 ± 100 |
| HF | X1Σ+ → B1Π | 0.50 | 5.88 5.87 ± 0.01 (f) | 1.6 × 10−18 (125); (120) (p) 3.2 × 10−18 (122) (q) 3.5 × 10−18 (118) (r) | 2 × 106 6.3 × 106(h) | 29 300 ± 300 |
| LiF | X1Σ+ → A1ΠX1Σ+ → B1Σ+ | 0.29 (1st channel); 0.25 (2nd channel) | 6.02 5.94 (a) 5.91 ± 0.34 (e) | 6.6 × 10−18 (183) | 35 400 1500 (m) | 3760 ± 500 |
| NaF | X1Σ+ → A1ΠX1Σ+ → B1Σ+ | 0.25 (1st channel); 0.67 (2nd channel) | 4.82 4.94 (a) 4.96 ± 0.30 (e) | 27 × 10−18 (235) | 486 160 (m) | 1263 ± 200 |
| KF | X1Σ+ → B1Σ+X1Σ+ → A1Π | 0.36 (1st channel); 0.21 (2nd channel) | 6.19 5.11 (a) 5.12 ± 0.05 (g) | 12 × 10−18 (188) | 30 400 500 (m) | 844 ± 100 |
Notes.
Theoretical calculations from the work of Vasiliu et al. (2010).
Experimental value, taken from Hynes et al. (1984).
Experimental value, taken from Steinberg & Schofield (1991).
Experimental value, taken from Bulewicz et al. (1961).
Experimental value, taken from Huber & Herzberg (1979).
Experimental value, taken from Johns & Barrow (1959).
Experimental value, taken from Vedeneyev et al. (1966).
Huebner & Mukherjee (2015). Symbols (theor) and (exp) refer to theoretical and experimental cross-section data, respectively.
Experimental value at 200 K (Self & Plane 2002).
Schaefer & Fegley (2005) based on experimental photolysis cross sections of Davidovits & Brodhead (1967).
Theoretical value of Langhoff et al. (1991).
Theoretical values of HCl photolysis cross sections (Alexander et al. 1993).
Theoretical values of HF photolysis cross sections (Brown & Balint-Kurti 2000).
Experimental value, taken from Nee et al. (1985).
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