1,15:21,35-Bis(oxydiethylene)-5,8,11,18,25,28,31,38-octaoxa-1,15,21,35-tetraazacyclotetradecane-16,20,36,40-tetraone–benzene (1/2): a macrotricyclic tetralactam
Abstract:The macrotricyclic title compound, C36H64N4O14·2C6H6, is located on a crystallographic center of symmetry. The molecule has four tertiary amide bridgehead atoms and consists of two unsymmetrical 20-membered diazatetraoxamacrocycles (N2O4 donor atom set) connected through the N atoms by two lateral oxydiethylene bridges. The bridging subunits, together with the short bridging strand (NCCOCCN) from each monocycle, define a 24-membered ring (N4O4 donor atom set) that forms a central cavity.
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