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O (2)[dmamhp = 2-dimethylaminomethyl-3-hydroxypyridine] have been synthesized and structurally characterizedby single crystal X-ray diffraction analysis. Compound 1 displays a double one-dimensional chains structure,in which each chain is constituted with the distorted octahedral copper(II) complex bridged through bidentatesulfate ligands resulting in a coordination polymer. The bifurcated hydrogen bonds and π-π interactions playimportant roles in the formation of the double chains structure. On the other hand, compound 2 adopts adistorted square pyramidal geometry around copper(II) ion and exists as a discrete monomer. There areintermolecular bifurcated hydrogen bonds and π-π stacking interactions between the monomeric units. Themagnetic properties revealed that the paramagnetic behaviors are dominantly manifested and there are nointermolecular magnetic interactions in both compound 1 and 2. Key Words : Copper(II) complexes, Coordination polymer, Bifurcated hydrogen bondsIntroductionThe molecular self-assembly of coordination polymersand supramolecular entities is a powerful method in thedesign of new materials with promising properties of poten-tial applications such as luminescent molecular materials,

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Extended Bifurcated Hydrogen Bonds Network Material of Copper(II) Complexes with 2-Dimethylaminomethyl-3-hydroxypyridine: Structures and Magnetic Properties