Molecular Orbital Constants for Vinyl radical (C2H3) MO B (eV) U (eV) N Q DblIon Special Remarks 1a' 306.18 435.63 2 1 Yes none UHF (averaged) 2a' 305.51 436.63 2 1 Yes none none 3a' 28.13 42.5 2 1 No none none 4a' 19.23 33.39 2 1 No none B from OVGF 5a' 15.84 30.43 2 1 No none B from OVGF 6a' 14.9 29.73 2 1 No none B from OVGF 1a" 10.61 27.82 2 1 No none B from OVGF 7a' 9.54 33.52 1 1 No none B from CCSD(T)