T (K) cross sect. at 266 nm ----------------------------- 238 4.53e-20 290 4.54e-20 338 4.56e-20 388 4.58e-20 438 4.60e-20 488 4.61e-20 538 4.63e-20 588 4.65e-20 638 4.67e-20 688 4.68e-20 738 4.70e-20 788 4.72e-20 838 4.73e-20 888 4.75e-20 932 4.76e-20