Synthesis and crystal structure of {[Hg(RNNNR ')(2)](2)}(infinity) [R=4-C2H5OC(O)C6H4, R '=2-FC6H4] - an asymmetric 1,3-diaryltriazenide complex of Mercury(II) with ID supramolecular arrangement through Hg-eta(2),eta(2 ')-arene pi-interactions

摘要

The reaction of 1-(4-ethoxycarbonylphenyl)-3-(2-fluorophenyl)triazene with mercury(II) acetate in the presence of potassium methanolate in methanol yields [Hg(RNNNR ')(2)] [R = 4-C2H5OC(O)C6H4, R ' = 2-FC6H4] as light-yellow crystals. [Hg(RNNNR ')(2)] complex molecules are associated to [Hg(RNNNR ')(2)](2) dimeric units through centrosymmetric metal-eta(2) -arene pi-interactions. The dimeric units-related to each other by translation-self-assemble to one-dimensional chains along to the crystallographic direction [110] through additional centrosymmetric metal-eta(2)-arene pi-interactions giving rise to a supramolecular ID arrangement. The [Hg(RNNNR ')(2)](2) dimeric units are also characterized by non-classical intermolecular C-H center dot center dot center dot O, and intramolecular C-H center dot center dot F hydrogen bonds involving the 4-EtOC(O) and 2-F substituents, respectively.