Construction of (CuX) Cluster-Containing (X = Br, I) Coordination PolymersEffect of the Spacer Length, Aryl Group, and Metal-to-Ligand Ratio on the Dimensionality, Cluster Nuclearity, and the Luminescence Properties of the Metal–Organic Frameworks

The CuX salts (X = Br, I) react with ArS(CH2)mSAr (m = 3, 5; Ar = Ph, p-Tol) in 1:1 or 2:1 ratio to respectively yield rhomboid Cu2X2- and cubane Cu4I4-containing coordination polymers. The Cu2Br2-materials strictly form 1D polymers whereas both types (1D and 2D) are isolated for the Cu2I2- and Cu4I4-ones. These metal−organic frameworks have been characterized by X-ray, TGA, and steady state and time-resolved absorption and emission spectroscopy at 298 and 77 K