Synthesis, crystal structures, and magnetic properties of two supramolecular coordination complexes constructed by sulfonate groups

Two supramolecular coordination complexes, [Cu(hps)(H2O)] (1) (hps = 4-hydroxypyridone-3-sulfonic acid) and [Cu(phen)(SO4)(H2O)2] (2) (phen = 1,10-phenanthroline), have been synthesized and characterized structurally as well as magnetically. The two complexes both exhibit supramolecular networks originating from interactions such as hydrogen bonding, π–π interactions and C–H O contacts. The magnetic properties of 1 and 2 have been investigated from 1.8 to 300 K. Results indicate that 1 and 2 show antiferromagnetic interactions between Cu(ΙΙ) centers.