ΔHf: -33.9 kcal/mol, REF: J. O. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds," Academic Press, New York, N.Y., 1970. Dipole: 0.7 Debye, REF: A. L. McClellan, "Tables of Experimental Dipole Moments," Freeman, San Francisco, 1963. I.P.: 11.2 eV, REF: R. D. Levin, S. G. Lias, "Ionization Potentials and Appearance Potential Measurements," 1971-1981, Natl. Stand. Ref. Data Ser., Natl. Bur. Stand. 71, (1982), Cat. No. C13.48:71.