Tc/NIST/Tc_p__NIST.trans
16 7    1.900000E+08    3.088370E+04
17 7    1.900000E+08    3.112410E+04
18 7    2.000000E+08    3.128790E+04
13 1    3.700000E+08    3.776720E+04
14 1    3.800000E+08    3.830290E+04
15 1    4.100000E+08    3.930830E+04