3D supramolecular networks of Mn(II)-5-sulfosalicylate assembled with 4,4′-dipyridyl N,N′-dioxide and 4,4′-dipyridyl: Structure, photoluminescence and DFT calculations

The supramolecular complexes {[Mn2(HSsal)2(dpyo)3(H2O)6]·2(H2O)} (1) and {[Mn(4,4′-bipy)(H2O)4]·(HSsal)·(H2O)}n (2) [dpyo = 4,4′-dipyridyl N,N′-dioxide; 4,4′-bipy = 4,4′-bipyridine and HSsal = 5-sulfosalicylate dianion] have been synthesized and characterized. The intense fluorescence of the complexes was tested in association with several aromatic compounds. The experimental structural results have been supported by DFT calculations.