שליחת רשומה: Synthesis and structure of an aryl­selenenium(II) cation, [C(34)H(41)N(4)Se(+)](2)[Hg(SeCN)(4)](2−), based on a 5-tert-butyl-1,3-bis­(1-pentyl-1H-benzimidazol-2-yl)benzene scaffold