Assembly, Structures And Properties Of Metal-Organic Frameworks Based On Chiral D-Camphoric Acid

Metal-organic frameworks based on carboxylate ligands have highly neat and infinite network structures and potential applications in magnetism, luminescence, catalysis, gas storage and separation. In this paper, we choose D-camphoric acid as original ligand to react to transition metal ions, and synthesized a series of1D,2D and3D MOFs by solvothermally synthesized according to crystal engineering theory. They are shown as follows:[Cd(d-cam)(2,2’-bipy)(H2O)]n(1)[M2(d-cam)2(4,4’-bipy)(H2O)4]n (M=Mn(2), Zn(3), Ni(4), Co(5))[Zn2(d-cam)2(bpp)]n (6)[Cu(d-cam)(imidazole)2(H2O)]n(7)[M(dl-cam)(imidazole)2]n (M=Cd(8), Zn(9))[Cd(dl-cam)(1,3-bimp)]n (10)[M(d-cam)(1,4-bimb)]n·4nH2O (M=Zn(11), Co(12), Cd(13))[Ni(d-cam)(1,4-bimb)]n·2nH2O (14)[Ni(dl-cam)(1,4-bimb)]n (15)[Cd3(dl-cam)2(1,4-bimb)2(μ2-Cl)2(H2O)2]n·6nH2O (16)These MOFs were characterized by elementary analysis, IR, thermo-gravimetric and single-crystal X-ray diffraction. Luminescence properties and magnetic properties were studied for some MOFs. It was also investigated how to control the assembly of MOFs with D-camphoric acid ligand, moreover, the relation between structure and property was also studied.