SYNTHESES OF MACROTRICYCLIC POLYAZACRYPTATES ON METAL-IONS - X-RAY CRYSTAL-STRUCTURES OF [(3,11-DIMETHYL-7-NITRO-1,5,9,13,16,19-HEXA-AZATRICYCLO[9.3.3.33,7]ICOSANE)COBALT(III)] (3+) AND [(3,11-DIMETHYL-7,15-DINITRO-1,5,9,13,18,21-HEXA-AZATRICYCLO[9.5.3.33,7]-DOCOSANE)COBALT(III)](3+) ION