Due to the intriguing variety of architecture and potential applications in luminescence, gas storage, molecular magnetism and ion exchange, the construction of metal-organic frameworks (MOFs) have attracted widespread interest in recent years [1] [2] [3] [4] . Carboxylate ligands have been employed most often in the design and synthesis for metal-organic frameworks because of their versatile linking capability in virtue of both covalent bonding and supramolecular interaction 5-8 . In the

more »

... me, imidazole-containing ligands, in particular, have proven to be good candidates for the construction of novel metalorganic frameworks due to their flexible and diverse coordination modes [9] [10] [11] . Based on above mention, we used the 4,4'-bis(imidazolyl) biphenyl and trimesic acid to construct a new Mn(II) coordination polymer with 2D sql topological net. All reagents and solvents employed were commercially available and used without further purification. Elemental analysis was carried out on a Carlo Erba 1106 full-automatic trace organic elemental analyzer. FT-IR spectra were recorded with a Bruker Equinox 55 FT-IR spectrometer as a dry KBr pellet in the 4000-400 cm -1 range. Synthesis Preparation of [Mn(Hbta)(bib)]n: The mixtures of MnCl2•4H2O (0.099 g, 0.5 mmol), trimesic acid (H3btc) (0.105 g, 0.5 mmol), 4,4'-bis(imidazolyl)biphenyl (bib) (0.143 g, 0.5 mmol) and H2O (12 mL) were sealed in a 25 mL Teflon-lined NOTE Hydrothermal Synthesis and Crystal Structure of Novel Mn(II) Coordination Polymer Based on 4,4'-Bis(imidazolyl)biphenyl and Trimesic Acid