CRYSTAL-STRUCTURE OF BIS(1-THIA-4,7-DIAZACYCLONONANE)COPPER(II) PERCHLORATE

The cation, bis(1-thia-4,7-diazacyclononane)copper(II), in the perchlorate salt, has the metal on a crystallographic twofold axis, and is dissimilar to the nitrate, where the metal is a center of symmetry. The nitrate anion is directly involved in a hydrogen bond with one N-H of each ligand while the packing of left bracket Cu(tasn)//2 right bracket (ClO//4)//2 in the unit cell involves no significant inter-ion interactions between complex cations and the perchlorate anions. The same labeling has been used as for the nitrate.