Acyclic schiff base salts derived from 1,3-diaminopropane and 1,3-diamino-2hydroxypropane

Two salts of acyclic Schiff base cationic ligands, namely N, N'- bis(2-nitrobenzyl) propane-1,3-diammonium dichloride monohydrate, C17H22N4O4 (2+) center dot 2Cl.(-) center dot H2O, (I), and 2- hydroxy-N, N'- bis( 2- nitrobenzyl) propane- 1,3- diammonium dichloride, C17H22N4O5 (2+) center dot 2Cl.(-), (II), were synthesized as precursors in order to obtain new acyclic and macrocyclic multidentate ligands and complexes. The cation conformations in compounds ( I) and ( II) are different in the solid state, although the cations are closely related chemically. Similarly, the hydrogen- bonding networks involving ammonium cations, hydroxyl groups and chloride anions are also different. In the cation of compound ( II), the hydroxyl group is disordered over two sets of sites, with occupancies of 0.785 ( 8) and 0.215 ( 8).