Abstract
Two new coordination polymers that contain di-copper (Cu 2) units have been prepared using Cu(OAc) 2·H 2O in combination with (1,3,4)-oxadiazole organic ligands L 1 and L 2 in MeOH. The compounds were characterized by single crystal X-ray diffraction, IR spectroscopy, and thermogravimetric analysis. The structure of compound 1 (monoclinic, C2/ c, a=19.9952(14) Å, b=7.5005(5) Å, c=16.0442(11) Å, β=109.000(10)°, V=2275.1(3) Å 3, Z=4) features 1-D zigzag chains that are cross-linked into a novel three-dimensional network by weak noncovalvent π– π interactions between the 3-pyridyl rings on the L 1 ligand. Compound 2 (monoclinic, C2/ c, a=27.428(2) Å, b=13.3833(11) Å, c=8.6339(7) Å, β=103.973(2)°, V=3075.5(4) Å 3, Z=4) also features a zigzag chain motif. In the solid state, small and large hexagonal channels are found in 1 and 2, respectively. Compounds 1 and 2 are new examples of metal dimer-containing coordination polymers.
Published Version
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