Syntheses, structures and magnetic properties of one family of 3d–4f chiral metal-organic frameworks (MOFs) based on D(+)-camphoric acid

The hydrothermal reactions of D(+)-camphoric acid (D-H2Cam) and 1,10-phenanthroline (phen)/2,2′-bipyridine (2,2′-bipy) with the corresponding metal salts gave rise to eleven chiral 3d–4f heterometallic metal-organic frameworks (MOFs). Single-crystal X-ray diffraction measurements reveal that the crystal structures are isostructural, crystallizing in the orthorhombic space group P212121 and they exhibit unique three-dimensional chiral 6-connected frameworks involving 1D zigzag chains aligned parallel to the a axis and the 2D wave-like lanthanide layers, with the Schläfli symbol (49 · 66). Moreover, we have systematically investigated the magnetic behaviors of partial compounds.