ΔHf: -8.7 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: 0.8 Debye, REF: R. D. Nelson, D. R. Lide, A. A. Maryott, Nat. Stand. Ref. Data Set., Natl. Bur. Stand. No. 10 (1967). I.P.: 11.7 eV, REF: D. C. Frost, C. A. McDowell, D. A. Vroom, J. Chem. Phys., 46, 4255 (1967).