Self-assembly of a hybrid organic-inorganic dicopper(II) coordination polymer with a calix[4]arene-derived nitrogenous ligand

摘要

Reaction of bispicolyl-p-tert-butylcalix[4]arene (L~1) functionalized in alternate phenolic positions with dimeric copper(II) acetate resulted in the formation of a hybrid organic-inorganic polymer. In the solid state, dicopper fragments are bridged by the bidentante ligand [Cu_2(mu-O_2CCH_3)_4(mu-L~1) centre dot C_4H_8O]_n, with one molecule of tetrahydrofuran in the asymmetric unit. The two independent Cu(II) ions possess square pyramidal coordination geometries denned by the four acetate ligands, and a picolyl group in the axial position.