Syntheses, structures, luminescence and magnetic properties of eleven coordination polymers constructed by a N,N′-sulfuryldiimidazole ligand

Reactions of divalent transition metal ions with the N,N′-sulfuryldiimidazole ligand (sdi) gave rise to eleven coordination polymers, namely, [Zn(sdi)(NO3)2(H2O)] (1), [Zn(sdi)2(NO3)2] (2), [Co(sdi)2(NO3)2] (3), [Cu(sdi)2(NO3)2]·2CO(CH3)2 (4), [Mn(sdi)2(H2O)2]·2NO3 (5), [Co(sdi)2(H2O)2]·2ClO4 (6), [Zn(sdi)(bdc)0.5(OCH3)(H2O)]·ClO4·H2O (7), [Cd(sdi)(N3)2] (8), [Mn(sdi)(N3)2] (9), [Ni(sdi)2(SO4)] (10) and [Cd(sdi)0.5(Hbtc)(OCH3)] (11) (H2bdc = 1,4-benzenedicarboxylic acid, H3btc = 1,3,5-benzenetricarboxylic acid). X-ray single-crystal analyses reveal that they have rich structural chemistry ranging from zero-dimensional (0D) (1), one-dimensional (1D) (2–7), two-dimensional (2D) (8) to three-dimensional (3D) (9–11) networks. Compound 1 displays a 0D structure which consists of [Zn(sdi)]2 dimers. Compounds 2–7 possess 1D chains with closed loops. Compound 8 shows a 2D (63) network. Compounds 9 and 10 exhibit 3D uninodal 6-connected pcu frameworks with (412·63) topology. Compound 11 displays a 3D uninodal 4-connected framework with a CdSO4-like net (65·8). The effects of metal ions and anions on the final motifs of the compounds have been discussed in detail. All the compounds are characterized using powder X-ray diffraction (PXRD), IR spectroscopy, thermal stability analysis and elemental analyses. Moreover, the photoluminescence properties of 1, 2, 7, 8 and 11 have been investigated. Magnetic investigation of 9 reveals spin canting antiferromagnetic interactions.