Crystal and molecular structure of the mercury dichloride complex with the macrocyclic dibenzo-aza-14-crown-4 ether ligand containing the embedded Di(α-pyridyl)bispidone fragment, [Hg(L)Cl2]

Abstract

The crystal and molecular structure of [Hg(L)Cl₂] (I), where L is dibenzo-aza-14-crown-4 ether with the embedded di(α-pyridyl)bispidone fragment, is studied by X-ray diffraction. The irregular five-vertex polyhedron of the Hg atom is formed by two Cl atoms and three N atoms of the dipyridylbispidone part of the L molecule. The O and N atoms of the macrocycle are not involved in metal coordination. The structure of complex I is compared with the structures of compounds [Zn(L)Cl₂] · C₂H₅OH, [Co(L)(H₂O)][CoCl₄], and [Cu(L)(H₂O)](ClO₄) · 2H₂O studied earlier.