ΔHf: -81.4 kcal/mol, REF: M. W. Chase, C. A. Davies, J. R. Downey, D. R. Frurip, R. A. McDonald, A. N. Syverud, JANAF Thermochemical Tables, Third Edition, J. Phys. Chem. Ref. Data 14, Suppl. 1 (1985). Dipole: 6.3 Debye, REF: NIST Chemistry WebBook, NIST Standard Reference Database, No. 69; W. G. Mallard, P. J. Linstrom, Eds., National Institute of Standards and Technology, Gaithersberg, http://webbook.nist.gov/chemistry. I.P.: 11.3 eV, REF: H. M. Rosenstock, K. Draxl, B. W. Steiner, J. T. Herron, "Energetics of Gaseous Ions," J. Phys. Ref. Data, 6 Suppl. 1 (1977).