New molecular complexes of trimeric perfluoro-ortho-phenylene mercury with heterocyclic compounds

Slow evaporation in air of the solution of trimeric perfluoro- ortho -phenylene mercury ( 1 ) and 2,1,3-benzothiadiazole ( 2 ) in THF affords a complex l.2 2 ·H 2 O 0.59 ( 3 ). A complex of 1 with di(tetrahydrofur-2-yl) ether ( 4 ; probably, a THF oxidation product) with a composition of 1.4 2 ( 5 ) is detected as a minor admixture to 3 . The structure of complexes 3 and 5 is determined by single crystal XRD. In complex 3 , a molecule of 1 participates in Hg…N and π F …H—C interactions with one molecule of 2 and in the π F …π H stacking interaction with another. Complex 5 is formed by Hg…O interactions with the participation of both heterocycles of a molecule of 4 .