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  **Absorption                                                                                      
  cross sections                                                                                    
  of *n*-propyl                                                                                     
  bromide,                                                                                          
  *i*-propyl                                                                                        
  bromide, and                                                                                      
  methyl bromide                                                                                    
  at T = 295                                                                                        
  K.**                                                                                              

                                                                                                    

                                                                                                    

                                                                                                    

                                                                                                    

  Wavelength, nm **CH~2~Br-CH~2~-CH~3~**      Wavelength,   **CH~3~-CHBr-CH~3~**      Wavelength,   **CH~3~Br**
                                              nm                                      nm            

                                                                                                    

  164.0          7.070e-18                    164.0         1.111e-17                 164.0         4.6459e-18

  164.5          9.529e-18                    164.5         1.146e-17                 164.5         4.8682e-18

  165.0          1.296e-17                    165.0         1.290e-17                 165.0         6.7902e-18

  165.5          1.534e-17                    165.5         1.495e-17                 165.5         1.2269e-17

  166.0          1.432e-17                    166.0         1.773e-17                 166.0         2.2280e-17

  166.5          1.407e-17                    166.5         2.044e-17                 166.5         1.5653e-17

  167.0          1.419e-17                    167.0         2.174e-17                 167.0         1.0709e-17

  167.5          1.733e-17                    167.5         2.246e-17                 167.5         1.0876e-17

  168.0          2.519e-17                    168.0         2.319e-17                 168.0         1.3911e-17

  168.5          3.427e-17                    168.5         2.634e-17                 168.5         1.6708e-17

  169.0          3.142e-17                    169.0         3.075e-17                 169.0         3.6949e-17

  169.5          2.806e-17                    169.5         3.713e-17                 169.5         3.2535e-17

  170.0          1.917e-17                    170.0         3.681e-17                 170.0         1.7400e-17

  170.5          1.218e-17                    170.5         3.391e-17                 170.5         1.9716e-17

  171.0          8.941e-18                    171.0         2.746e-17                 171.0         1.3226e-17

  171.5          7.634e-18                    171.5         1.685e-17                 171.5         1.0560e-17

  172.0          7.058e-18                    172.0         1.253e-17                 172.0         7.7574e-18

  172.5          7.643e-18                    172.5         1.103e-17                 172.5         7.0582e-18

  173.0          8.901e-18                    173.0         1.195e-17                 173.0         5.7819e-18

  173.5          9.252e-18                    173.5         1.322e-17                 173.5         5.0914e-18

  174.0          8.628e-18                    174.0         1.574e-17                 174.0         5.0723e-18

  174.5          8.978e-18                    174.5         1.565e-17                 174.5         7.3813e-18

  175.0          9.305e-18                    175.0         1.330e-17                 175.0         1.4827e-17

  175.5          9.799e-18                    175.5         1.181e-17                 175.5         1.1513e-17

  176.0          1.246e-17                    176.0         1.175e-17                 176.0         1.1908e-17

  176.5          1.730e-17                    176.5         1.484e-17                 176.5         8.8188e-18

  177.0          1.903e-17                    177.0         1.829e-17                 177.0         7.0106e-18

  177.5          1.264e-17                    177.5         1.815e-17                 177.5         5.8343e-18

  178.0          9.270e-18                    178.0         2.459e-17                 178.0         7.6044e-18

  178.5          6.670e-18                    178.5         1.145e-17                 178.5         2.1118e-17

  179.0          3.975e-18                    179.0         7.067e-18                 179.0         1.0656e-17

  179.5          2.185e-18                    179.5         4.075e-18                 179.5         1.6854e-18

  180.0          1.085e-18                    180.0         2.202e-18                 180.0         4.4600e-19

  180.5          6.247e-19                    180.5         1.267e-18                 182           1.9800e-19

  181.0          4.339e-19                    181.0         7.689e-19                 184           2.1000e-19

  181.5          3.409e-19                    181.5         5.115e-19                 186           2.7800e-19

  182.0          2.989e-19                    182.0         3.648e-19                 188           3.5200e-19

  182.5          2.832e-19                    182.5         2.712e-19                 190           4.4200e-19

  183.0          2.806e-19                    183.0         2.235e-19                 192           5.3800e-19

  183.5          2.852e-19                    183.5         1.971e-19                 194           6.2600e-19

  184.0          2.953e-19                    184.0         1.824e-19                 196           6.9700e-19

  184.5          3.083e-19                    184.5         1.757e-19                 198           7.6100e-19

  185.0          3.238e-19                    185.0         1.737e-19                 200           7.9000e-19

  185.5          3.395e-19                    185.5         1.741e-19                 202           7.9200e-19

  186.0          3.556e-19                    186.0         1.762e-19                 204           7.8000e-19

  186.5          3.726e-19                    186.5         1.799e-19                 206           7.5200e-19

  187.0          3.903e-19                    187.0         1.843e-19                 208           7.0400e-19

  187.5          4.082e-19                    187.5         1.890e-19                 210           6.5500e-19

  188.0          4.267e-19                    188.0         1.942e-19                 212           5.9900e-19

  188.5          4.447e-19                    188.5         2.002e-19                 214           5.4200e-19

  189.0          4.636e-19                    189.0         2.068e-19                 216           4.7900e-19

  189.5          4.828e-19                    189.5         2.136e-19                 218           4.2300e-19

  190.0          4.979e-19                    190.0         2.206e-19                 220           3.6600e-19

  190.5          5.157e-19                    190.5         2.283e-19                 222           3.1100e-19

  191.0          5.326e-19                    191.0         2.346e-19                 224           2.6600e-19

  191.5          5.484e-19                    191.5         2.413e-19                 226           2.2200e-19

  192.0          5.651e-19                    192.0         2.483e-19                 228           1.8100e-19

  192.5          5.811e-19                    192.5         2.558e-19                 230           1.4700e-19

  193.0          5.961e-19                    193.0         2.635e-19                 232           1.1900e-19

  193.5          6.104e-19                    193.5         2.712e-19                 234           9.4100e-20

  194.0          6.248e-19                    194.0         2.799e-19                 236           7.3800e-20

  194.5          6.373e-19                    194.5         2.880e-19                 238           5.7300e-20

  195.0          6.494e-19                    195.0         2.969e-19                 240           4.3200e-20

  195.5          6.605e-19                    195.5         3.051e-19                 242           3.2700e-20

  196.0          6.704e-19                    196.0         3.128e-19                 244           2.3700e-20

  196.5          6.797e-19                    196.5         3.204e-19                 246           1.8100e-20

  197.0          6.880e-19                    197.0         3.281e-19                 248           1.3100e-20

  197.5          6.953e-19                    197.5         3.356e-19                 250           9.2100e-21

  198.0          7.016e-19                    198.0         3.430e-19                 252           6.8300e-21

  198.5          7.068e-19                    198.5         3.513e-19                 254           4.8400e-21

  199.0          7.117e-19                    199.0         3.586e-19                 256           3.4000e-21

  199.5          7.166e-19                    199.5         3.659e-19                 258           2.4000e-21

  200.0          7.183e-19                    200.0         3.728e-19                 260           1.6200e-21

  200.5          7.264e-19                    200.5         3.800e-19                 262           1.1500e-21

  201.0          7.267e-19                    201.0         3.862e-19                 264           7.9500e-22

  201.5          7.267e-19                    201.5         3.932e-19                 266           5.5100e-22

  202.0          7.256e-19                    202.0         3.992e-19                 268           3.5600e-22

  202.5          7.234e-19                    202.5         4.049e-19                 270           2.4600e-22

  203.0          7.203e-19                    203.0         4.102e-19                               

  203.5          7.169e-19                    203.5         4.157e-19                               

  204.0          7.119e-19                    204.0         4.204e-19                               

  204.5          7.068e-19                    204.5         4.247e-19                               

  205.0          7.010e-19                    205.0         4.282e-19                               

  205.5          6.947e-19                    205.5         4.316e-19                               

  206.0          6.879e-19                    206.0         4.345e-19                               

  206.5          6.800e-19                    206.5         4.372e-19                               

  207.0          6.720e-19                    207.0         4.394e-19                               

  207.5          6.636e-19                    207.5         4.411e-19                               

  208.0          6.524e-19                    208.0         4.418e-19                               

  208.5          6.420e-19                    208.5         4.425e-19                               

  209.0          6.321e-19                    209.0         4.428e-19                               

  209.5          6.213e-19                    209.5         4.429e-19                               

  210.0          6.105e-19                    210.0         4.423e-19                               

  210.5          5.993e-19                    210.5         4.414e-19                               

  211.0          5.887e-19                    211.0         4.399e-19                               

  211.5          5.771e-19                    211.5         4.388e-19                               

  212.0          5.649e-19                    212.0         4.363e-19                               

  212.5          5.527e-19                    212.5         4.334e-19                               

  213.0          5.408e-19                    213.0         4.303e-19                               

  213.5          5.278e-19                    213.5         4.264e-19                               

  214.0          5.147e-19                    214.0         4.219e-19                               

  214.5          5.020e-19                    214.5         4.172e-19                               

  215.0          4.889e-19                    215.0         4.122e-19                               

  215.5          4.791e-19                    215.5         4.067e-19                               

  216.0          4.658e-19                    216.0         4.009e-19                               

  216.5          4.530e-19                    216.5         3.949e-19                               

  217.0          4.405e-19                    217.0         3.884e-19                               

  217.5          4.269e-19                    217.5         3.815e-19                               

  218.0          4.136e-19                    218.0         3.745e-19                               

  218.5          3.997e-19                    218.5         3.668e-19                               

  219.0          3.864e-19                    219.0         3.577e-19                               

  219.5          3.726e-19                    219.5         3.494e-19                               

  220.0          3.584e-19                    220.0         3.412e-19                               

  220.5          3.441e-19                    220.5         3.322e-19                               

  221.0          3.321e-19                    221.0         3.240e-19                               

  221.5          3.201e-19                    221.5         3.155e-19                               

  222.0          3.075e-19                    222.0         3.069e-19                               

  222.5          2.954e-19                    222.5         2.979e-19                               

  223.0          2.839e-19                    223.0         2.892e-19                               

  223.5          2.722e-19                    223.5         2.803e-19                               

  224.0          2.602e-19                    224.0         2.710e-19                               

  224.5          2.498e-19                    224.5         2.622e-19                               

  225.0          2.386e-19                    225.0         2.530e-19                               

  225.5          2.279e-19                    225.5         2.459e-19                               

  226.0          2.175e-19                    226.0         2.363e-19                               

  226.5          2.073e-19                    226.5         2.276e-19                               

  227.0          1.975e-19                    227.0         2.189e-19                               

  227.5          1.875e-19                    227.5         2.100e-19                               

  228.0          1.783e-19                    228.0         2.017e-19                               

  228.5          1.691e-19                    228.5         1.934e-19                               

  229.0          1.605e-19                    229.0         1.843e-19                               

  229.5          1.521e-19                    229.5         1.762e-19                               

  230.0          1.440e-19                    230.0         1.682e-19                               

  230.5          1.363e-19                    230.5         1.608e-19                               

  231.0          1.293e-19                    231.0         1.537e-19                               

  231.5          1.230e-19                    231.5         1.467e-19                               

  232.0          1.162e-19                    232.0         1.397e-19                               

  232.5          1.098e-19                    232.5         1.329e-19                               

  233.0          1.038e-19                    233.0         1.266e-19                               

  233.5          9.716e-20                    233.5         1.201e-19                               

  234.0          9.107e-20                    234.0         1.145e-19                               

  234.5          8.557e-20                    234.5         1.087e-19                               

  235.0          8.041e-20                    235.0         1.030e-19                               

  235.5          7.548e-20                    235.5         9.745e-20                               

  236.0          7.081e-20                    236.0         9.205e-20                               

  236.5          6.630e-20                    236.5         8.697e-20                               

  237.0          6.221e-20                    237.0         8.215e-20                               

  237.5          5.824e-20                    237.5         7.739e-20                               

  238.0          5.456e-20                    238.0         7.302e-20                               

  238.5          5.102e-20                    238.5         6.879e-20                               

  239.0          4.727e-20                    239.0         6.439e-20                               

  239.5          4.409e-20                    239.5         6.048e-20                               

  240.0          4.101e-20                    240.0         5.677e-20                               

  240.5          3.828e-20                    240.5         5.260e-20                               

  241.0          3.585e-20                    241.0         4.959e-20                               

  241.5          3.325e-20                    241.5         4.648e-20                               

  242.0          3.094e-20                    242.0         4.389e-20                               

  242.5          2.879e-20                    242.5         4.114e-20                               

  243.0          2.680e-20                    243.0         3.852e-20                               

  243.5          2.485e-20                    243.5         3.597e-20                               

  244.0          2.302e-20                    244.0         3.352e-20                               

  244.5          2.136e-20                    244.5         3.119e-20                               

  245.0          1.994e-20                    245.0         2.914e-20                               

  245.5          1.849e-20                    245.5         2.712e-20                               

  246.0          1.722e-20                    246.0         2.536e-20                               

  246.5          1.598e-20                    246.5         2.370e-20                               

  247.0          1.482e-20                    247.0         2.208e-20                               

  247.5          1.374e-20                    247.5         2.056e-20                               

  248.0          1.276e-20                    248.0         1.918e-20                               

  248.5          1.181e-20                    248.5         1.780e-20                               

  249.0          1.092e-20                    249.0         1.670e-20                               

  249.5          1.010e-20                    249.5         1.555e-20                               

  250.0          9.333e-21                    250.0         1.444e-20                               

  250.5          8.651e-21                    251.0         1.242e-20                               

  251.0          8.022e-21                    252.0         1.072e-20                               

  251.5          7.436e-21                    253.0         9.207e-21                               

  252.0          6.882e-21                    254.0         7.892e-21                               

  252.5          6.384e-21                    255.0         6.751e-21                               

  253.0          5.919e-21                    256.0         5.770e-21                               

  253.5          5.472e-21                    257.0         4.922e-21                               

  254.0          5.062e-21                    258.0         4.208e-21                               

  254.5          4.675e-21                    259.0         3.592e-21                               

  255.0          4.323e-21                    260.0         3.055e-21                               

  255.5          4.005e-21                    261.0         2.593e-21                               

  256.0          3.736e-21                    262.0         2.222e-21                               

  256.5          3.468e-21                    263.0         1.883e-21                               

  257.0          3.219e-21                    264.0         1.602e-21                               

  257.5          2.984e-21                    265.0         1.373e-21                               

  258.0          2.772e-21                    266.0         1.161e-21                               

  259.0          2.324e-21                    267.0         9.772e-22                               

  260.0          1.950e-21                    268.0         8.236e-22                               

  261.0          1.598e-21                    269.0         7.001e-22                               

  262.0          1.337e-21                    270.0         5.997e-22                               

  263.0          1.113e-21                                                                          

  264.0          9.567e-22                                                                          

  266.0          7.273e-22                                                                          

  267.0          5.904e-22                                                                          

  268.0          4.813e-22                                                                          

  269.0          4.062e-22                                                                          

  270.0          3.411e-22                                                                          
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