... c) JS Swenton, A. Callinan, S. Wang; J. Org. Chem., 56 (1992), p. 78. ... d) TN Biggs, JS Swenton; J. Org. Chem., 57 (1992), p. 5568. 2; The enthalpy of formation of acetylene is 228.2 kJ/mol whereas that for ethylene is −37.5 kJ/mol Handbook of Chemistry and Physics (71 st Edition)CRC Press (1990), pp. 5–11. ...