Unidimensional Self‐assembling of {Hg II [NNN(PhBr) 2 ] 2 } through Metal‐η 4 ‐arene π‐Interactions: Synthesis and X‐Ray Characterization of a Bis Diaryl Symmetric‐substituted Triazenide Complex Polymer of Mercury(II)

A solution of deprotonated 1,3‐bis(4‐bromophenyl)triazene reacts with Hg(CH 3 COO) 2 in methanol / tetrahydrofurane to give yellow crystalline needles of {Hg II [NNN(PhBr) 2 ] 2 } n , a triazenide complex polymer of Hg II with metal‐η 2 ,η 2 ‐arene π‐interactions, performed by coordinated single triazenide chains. The crystal structure of the new polymeric complex of Hg II belongs to the monoclinic space group P 2 1 /n. The lattice of [Hg II (BrPhNNNPhBr) 2 ] n can be viewed as a one‐dimensional assembling of planar tectons [Hg II (BrPhNNNPhBr) 2 ] linked through metalocene alike Hg II ‐η 2 ,η 2 ‐arene π‐interactions along the crystallographic b axis.