Pseudo Jahn-Teller effect in distortion and restoration of planar configurations of tetra-heterocyclic 1,2-diazetes C2N2E4, E = H, F, Cl, Br
Keywords: اثر شبه یانگ تلر; Pseudo Jahn-Teller effect; Puckering in tetra-heterocyclic 1,2-diazetes; Restoration of planar configurations;