Monajjemi M.Rafiee Y.Mollaamin F.Shahriari S.2023-06-102023-06-102023-01-0100360244https://hdl.handle.net/20.500.12597/15772Abstract: Several ions of (Formula presented.) rings in viewpoint of diatropic situation (aromatic) and also paratropic position (anti-aromatic) have been studied. By this work, it has been exhibited that some of these ion rings presented planar and some others exhibit a quasi-planar structures, due to Jahn–Teller and pseudo Jahn–Teller effects. Via this effort, we demonstrated that the global aromaticity or global anti-aromaticity can be assigned on the 4n + 2 (or 4n) electron counting rule for either π- or σ-electrons in the planar structures. In addition, the structures of these ions have been discussed computationally and confirmed via comparisons of experimental photoelectron spectrophotometry.falsearomaticity | B clusters n | Jahn–Teller effect | pseudo‑Jahn–Teller effectArticle10.1134/S00360244230102232-s2.0-85160292999