ΔHf: -62.0 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: 7.1 Debye, REF: "Structural Inorganic Chemistry", A. F. Wells, Clarendon Press, Oxford, 1984.