SYNTHESIS, STRUCTURE AND PHYSICAL-CHEMICAL PROPERTIES OF COPPER(II) CHLORIDE COMPLEXES WITH 3,3-DIMETHYL-1-(4',4'-DIMETHYLCYCLOHEXA-2',6'-DION-1'-YL)-3,4-DIHYDROISOQUINOLINE - CRYSTALLINE AND MOLECULAR-STRUCTURE OF CATENE-[TRANS-DICHLORO-MU-(3,3-DIMETHYL-1-(4',4'-DIMETHYLCYCLOHEXA-2',6'-DION-1'-YL)-3,4-DIHYDROISOQUINOLINE-O,O)COPPER(II)