Shown are the gas species listed in Table 2, page 308, for which we still do not have data as of October 2024 CSF8 JA82 C2H6 B677 C2N2(k) BA73 C6H6 B677 Cl2 B672 F2 B672 HNO3(e) JA71 H2SO4 B689 H2S2 B689 NCO(e) JA71 N2F2-cis(f) "N2F2-CIS" B674 N2F2-tra(f) "N2F2-TRA" B674 N2H2-cis(e) "N2H2-CIS" JA71 SOCl2 BA77 S2Cl2 B674 S2O B689 Thermochemical data from Symonds and Reed #1993, except as noted: e) Stull and Prophet, 1971. f) Pankratz, 1984. k) Barin and Knacke, 1973.