... The experimental and ab initio results lead to improved heat capacities and entropies (S° 298.15 (CH 2 OH) = 244.170 ± 0.018 J (mol K) -1 ). Ab initio CBS-QCI/APNO calculations predict that Δ f H° 298.15 (CH 2 OH) = −18.4 ± 1.3 kJ mol -1 . Re-evaluation of photoionization ...