Abstract
Three new supramolecular complexes, [Zn(dpds)(C6H5COO)2] n (1), [Zn(dpds)(C7H7COO)2] n (2), and [{Zn(dpds)[C6H4(COO)2]} · H2O] n (3) (dpds = 4,4′-dipyridyldisulfide, C6H5COOH = benzoic acid, C7H7COOH = m-methylbenzoic acid, C6H4(COOH)2 = phthalic acid), have been synthesized by using the flexible ligand 4,4′-dipyridyldisulfide (dpds) with benzoic acid, m-methylbenzoic acid, and phthalic acid. The [Zn(C6H5COO)2] moieties in 1 are connected by dpds to generate a 1-D helical chain. In 2, the [Zn(C7H7COO)2] moieties are bridged by two dpds ligands of different chiralities to form a discrete achiral macrocycle chair-like structure. The ZnN2O2 tetrahedra in 3 are alternately linked by a pair of dpds and phthalato ligands to form a 1-D double-stranded chain, which are assembled via S ··· S weak interactions into a 2-D layer. The resulting 2-D layers are inclined parallel into 3-D supramolecular architecture.
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