Synthesis,Structure and Characterization of a 3D Chiral Indium Carboxylate Metal-organic Framework Based on 1,1?-Biphenol Ligand

A novel indium-based chiral metal organic-framework 1 {In 2 L（μ 2 -O）（H 2 O） 3 } n was synthesized from C 2 -symmetric 1,1?-biphenol-based ligand H4 L and structurally characterized by single-crystal and powder X-ray diffraction, Fourier-transform infrared spectra（FTIR）, solid-state circular dichroism（CD） and thermal gravimetric analysis（TGA）. 1 crystallizes in monoclinic space group P21 with a = 10.1861（5）, b = 18.5632（9）, c = 16.5153（8） ?, V = 3077.1（3） ?3, Z = 2, Mr = 944.29 g/mol, Dc = 1.019 g/cm3, F（000） = 944, GOOF = 0.932, the final R = 0.0577 and w R = 0.1091 for 22090 observed reflections with I ＞ 2σ（I）. Each In2 cluster in 1 is linked by four ligands and each ligand is coordinated to four In2 clusters to generate a 3D network. Additionally, the photoluminescence of 1 and H4 L were also investigated.