Vasylevskyi, Serhii I. Regeta, Khrystyna Ruggi, Albert Petoud, Stéphane Piguet, Claude Fromm, Katharina M. 2018-01-02 New functional coordination polymers based on the semi-flexible 9,10-di(1H-imidazol- 1-yl)-anthracene ligand (L) with ZnII and CdII, namely {[Zn(μ2-L)2] (ClO4)2·m(MeOH)·n(DCM)}n (1), {[Zn(μ2-L)2](BF4)2·m(MeOH)·n(DCM)}n (2), {[Zn(μ2-L)2(p-Tos)2]·m(DCM)·n(MeOH)}n (3), {[Cd(μ2-L)2(p-Tos)2]·m(DCM)}n (4) {[Cd(μ2-L)2(p-Tos)2]·m(MeOH)·n(Dioxane)}n (5) and {[Zn(μ2- L)2(CF3CO2)2]·2(Dioxane)}n (6), were obtained. Dissolving L in polar solvent mixtures MeOH–DCM (4 : 1) or MeOH–dioxane (1 : 1) with ZnII and CdII salts resulted in the formation of complexes 1, 2, and 5 adopting a cis-conformation of the imidazole groups with respect to anthracene. In less polar mixtures of solvents such as MeOH–DCM (1 : 4) trans-L is observed, leading to the coordination polymers 3–4 with ZnII and CdII. In an intermediate solvent mixture such as MeOH–dioxane (1 : 4), the cis- and trans-conformation coexist as exemplified in complex 6 with ZnII. In the solid state, complexes 1–5 assemble as supramolecular 2-D coordination polymers with a (4,4) topology, while 6 forms a tridimensional porous network with a cds topology. All compounds reveal strong blue emission in the solid state at room temperature. application/pdf https://folia.unifr.ch/global/documents/306487 https://folia.unifr.ch/documents/306487/files/fro_cta.pdf https://folia.unifr.ch/documents/306487/files/fro_cta_sm2.txt https://folia.unifr.ch/documents/306487/files/fro_cta_sm1.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1039/C7DT03758A info:eu-repo/semantics/openAccess License undefined Dalton Transactions. - 2018, vol. 47, no. 2, p. 596–607 info:eu-repo/classification/udc/54 Cis- and trans-9,10-di(1H-imidazol-1-yl)-anthracene based coordination polymers of ZnII and CdII: synthesis, crystal structures and luminescence properties http://purl.org/coar/resource_type/c_6501