A configuration interaction study of the ground state molecular properties of NO2

Abstract
An ab initio SCF–CI wavefunction for the 2A1 ground state of NO2 has been calculated using a ’’double zeta plus polarization’’ quality basis set. The CI energy, −204.374346 a.u., is the lowest which has been reported for this molecule. The CI wavefunction is discussed and Mulliken population analyses are presented. Several one‐electron properties, including the magnetic hyperfine splitting parameters, are reported for both the SCF and CI wavefunction.
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