Covalent intermolecular interaction of the nitric oxide dimer (NO)2
Zhang Huia), Zheng Gui-Lia),b), Lv Gangc), Geng Yi-Zhaoa), Ji Qing†a),d),e)
       
NBOs of the NO monomer and dimer with high occupancies (numbers in parentheses). BD, BD*, and LP represent bond, antibond and lone pair orbitals, respectively. (a) The NBOs of the NO monomer for the electrons with α spin and β spin shown in two columns, respectively. (b) The NBOs of the NO dimer with high occupancies.