Abstract
Two porous coordination polymers, {[Cu(2,3-pydc)(bpp)·2.5H2O}n (1) and {[Cu(2,3-pydc)(bpp)·3.5H2O}n (2) (2,3-H2pydc=pyridine-2,3-dicarboxylic acid, bpp=1,3-bis(4-pyridyl)propane), have been synthesized with the same reactant ratio in different solvents. Two complexes have the same components, coordination environment of Cu(II), as well as the coordination mode of ligands, but represent two quite different porous architectures. 1 is a homochiral 2D→3D porous polymer with polycatenated layers of achiral ligands. 2 is a 2D centrosymmetric pillared-bilayer porous polymer with water-filled channels. They have been characterized by infrared spectroscopy, elemental analysis, thermogravimetric analysis and X-ray crystallography.
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