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CuBr2 complexes with 3,5-disubstituted pyridine ligands
Christopher P Landee1, Diane A Dickie2, Mark M Turnbull3
1Dept. of Physics, Clark University, 950 Main St., Worcester, MA 01610, USA.
Abstract:
Reaction of copper(II) bromide with 3,5-di-chloro-pyridine (3,5-Cl2py) or 3,5-di-methyl-pyridine (3,5-Me2py) led to the isolation of the coordination polymers catena-poly[[bis-(3,5-di-chloro-pyridine)-copper(II)]-di-μ-bromido], [CuBr2(C5H3Cl2N)2] n or [CuBr2(3,5-Cl2py)2] n (1), and catena-poly[[bis-(3,5-di-methyl-pyridine)-copper(II)]-di-μ-bromido], [CuBr2(C7H9N)2] n or [CuBr2(3,5-Me2py)2] n (2), respectively. The structures are characterized by bibromide-bridged chains [d(av.)Cu⋯Cu = 3.93 (9) Å]. In 1, the chains are linked perpendicular to the a axis by non-classical hydrogen bonds and halogen bonds, while in 2, only non-classical hydrogen bonds are observed.
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