Abstract
Four noncentrosymmetric coordination polymers of [Mn((S)-imp)((R)-imp)] (1), [Cu((S)-imp)2]∞ (2), [Zn((S)-imp)2]∞ (3), and [Co((S)-imp)2]∞ (4) [(S)-imp = (S)-2-(1H-imidazole1-yl) propionate] have been prepared and structurally characterized by X-ray single crystal diffraction, X-ray powder diffraction (XRPD), infrared (IR) spectroscopy, elemental analysis, and thermogravimetric analysis (TGA). Compound 1 crystallizes in the space group Pna21, exhibiting a two-dimensional structure; 2 crystallizes in the space group of P21, showing a chiral layered structure of (4, 4)-net, whereas 3 and 4 are isostructural, and they crystallize in the space group P212121, exhibiting a 3-fold interpenetrating diamondoid net. Because the ligand used for the synthesis is an enantiopure chiral compound, the obtained metal−organic frameworks show the homochirality in bulk except for compound 1, in which the ligand configuration was racemized during the solvothermal reaction.
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