1D looped chain, 1D tube-like chain, and 3D inorganic-organic hybrid coordination polymers assembled from 1,6-di(triazole-1-yl-methyl)-4-R-phenol and cadmium(II) thiocyanate

Reaction of ligands, 1,6-di(triazole-1-yl-methyl)-4-R-phenol [dttp (R = t-Bu), dtmp (R = Me), dtcp (R = Cl)], with Cd(SCN)(2) leads to the formation of various coordination polymers with different structures. Coordination polymer [Cd(dttP)(2)(SCN)(2)] (1) possesses a one-dimensional (ID) looped chain running along the c-axis, while isostructural polymers [Cd(dtmp)(SCN)(2)center dot CH3OH] (2) and [Cd(dtcp)(SCN)(2)center dot CH3OH] (3) feature a novel ID tilbe-like chain running along the a-axis. Distinct assemblies are observed in 1, 2, and 3 due to the spatial hindrance of different substituted groups bonded to the phenol rings. In contrast, 1,6-di(triazole-1-yl-methyl)-4-chlorophenol (dtcp) with Cd(SCN)(2) under a solvothermal reaction condition yields a remarkable and unique three-dimensional (3D) polymer [Cd(dtcp)(SCN)(2)] (4).