T in K cross sect. at 230 nm 313.15 1.58e-17 321.46 4.65e-17 328.58 1.04e-16 337.57 2.11e-16 346.42 4.11e-16 354.22 7.78e-16 363.89 1.45e-15 373.04 2.71e-15 382.27 4.10e-15