The title compound (C10H26N4)·Cu+2·H2O·SO4−2·3H2OA has been studied by X-ray diffraction and IR spectroscopy. It crystalized in monoclinic system, in space group P 2l/c, with cell dimensions ofa=8.128(2),b=15.472(2),c=15.350(2) Å, β=102.66(2)°. The copper atom is five coordinated with four nitrogen atoms and one axial water molecule forming tricyclic chelated spermine complex. The chelated complex consists of two six-membered and one sevenmembered rings. The seven membered ring is disordered. The amine groups from spermine molecule are hydrogen bonded to the sulphate anion and the water molecule. All water molecules form an infinitive hydrogen bonding network utilizing sulphate anions as bridges. The IR analysis before and after dehydration of A agree with the X-ray
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