Abstract
A coordination polymer catena-chloro(4-pyridinecarboxylic acid)copper(I): [Cu(C6H5 O2N)Cl]n (1) has been prepared directly by reacting CuIICl2 ⋅ 2H2O and 4-cyanopyridine in the presence of disodium maleate under hydrothermal conditions at 140°C. Crystal data for 1 are as follows: monoclinic, P21/n, a = 16.4623(9) Å, b = 3.7795(2) Å, c = 24.7612(11) Å, β = 101.534(1)°, V = 1509.5(1) Å3, Z = 4, D calc. = 1.955 g ⋅ cm−3, R1 = 0.0511, wR2 = 0.1060 for all 2666 reflections. In this 1-D stair-polymer, two [⋅⋅⋅Cu–Cl–Cu⋅⋅⋅]n zigzag chains are held together by weak interchain Cu–Cl bonds. The 4-pyridinecarboxylic acid ligands derived from the 4-CNpy molecules coordinate to the approximately tetrahedral Cu(I) centers through pyridyl-N atoms. The carboxyl ends of 4-pyridinecarboxylic acid participate in interchain hydrogen-bonding interactions to form a 2-D supramolecular network.
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Barman, R.K., Singh, S.K. & Das, B.K. Synthesis and structural properties of a 1-D copper(I) coordination polymer. Journal of Chemical Crystallography 32, 369–375 (2002). https://doi.org/10.1023/A:1020284803511
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DOI: https://doi.org/10.1023/A:1020284803511