CRYSTAL AND MOLECULAR STRUCTURE OF THE MERCURY DICHLORIDE COMPLEX WITH THE MACROCYCLIC DIBENZO-AZA-14-CROWN-4 ETHER LIGAND CONTAINING THE EMBEDDED DI(?-PYRIDYL)BISPIDONE FRAGMENT, [HG(L)CL2] Статья Polyakova I.N., Sergienko V.S., Kvartalov V.B., Kolyadina N.M., Sokol V.I. Russian Journal of Inorganic Chemistry. IAPC Nauka/Interperiodica. Том Vol 61 No 2. 2016. С. 168-173