T in K cross sect. at 210 nm 1800 1.25e-20 2060 2.33e-20 2320 3.77e-20 2580 5.54e-20 2840 7.60e-20 3100 9.88e-20 3360 1.23e-19 3620 1.49e-19 3880 1.76e-19 4140 2.03e-19 4400 2.30e-19