Coordination chemistry of mercury-containing anticrowns. Synthesis and structures of the complexes of cyclic trimeric perfluoro-o-phenylenemercury with ethanol, THF and bis-2,2′-tetrahydrofuryl peroxide

The paper reports the ability of the mercury anticrown (o-C6F4Hg)3 (1) to form complexes with ethanol and THF. In the case of ethanol, a pyramidal 1:1 complex, {[(o-C6F4Hg)3](EtOH)}, has been isolated. In the case of THF, the complexes {[(o-C6F4Hg)3](THF)n} (n = 1-4), containing pyramidal (n = 1) or bipyramidal (n = 2-4) fragments in their structures, are produced. An unusual sandwich complex of 1 with bis-2,2′-tetrahydrofuryl peroxide is also described.