
%0 Journal Article
%A Bernhardt, PV 
%A Comba, P 
%A Gahan, LR 
%A Lawrance, GA 
%T Dicopper(II) Complexes of Spiro Macrobicycles With Aza and Thia Aza Donor Sets
%J Australian Journal of Chemistry
%D 1990/12/01
%V 43
%N 12
%P 2035-2044
%K 
%R https://doi.org/10.1071/CH9902035
%U https://www.publish.csiro.au/paper/CH9902035 
%X Reaction of the dicopper (II) complex of the binucleating ligand 5,5- bis (4-amino-2-azabutyl)-3,7-diazanonane-1,9-diamine with nitroethane and formaldehyde in water gives the respective macrobicyclic and macromonocyclic binucleating ligands 7,21-dimethyl-7,21-dinitro-2,5,9,12,16,19,23,26-octaazaspiro[13.13] heptacosane and 6,6-bis(4- amino-2-azabutyl)-13-methyl-13-nitro-1,4,8,11-tetraazacyclotetradecane , both as their dicopper (II) complexes. Similarly, condensation of the dicopper (II) complex of 5,5-bis(4-amino- 2-thiabutyl)-3,7-dithianonane-1,9-diamine with nitroethane and formaldehyde results in the binucleating  macrobicycle 7,21-dimethyl- 7,21-dinitro-2,12,16,26-tetrathia-5,9,19,23-tetraazaspiro[13.13]-heptacosane. Physical properties of all complexes are reported and comparisons with mononuclear relatives are made. Structural parameters derived from electron paramagnetic resonance spectra are discussed. 
