engleski

Synthesis and crystal structure analysis of 3D zinc metal-organic frameworks involving amino acidates

Metal-organic frameworks (MOFs) are materials of great interest in the scientific community due to their vast variety of potential applications. [1] These materials are investigated mostly as potential gas/solvent storage materials, and for enantioselective catalysis or separation of enantiomers.[1, 2] Studies involving zinc MOFs composed of standard amino acids and 4, 4’-bipyridine are quite scarce. Only 11 crystal structures of such MOFs are published in Cambridge Structural Database (CSD), and only one is a 3D MOF.[3, 4] We report synthesis and crystal structures of two novel 3D zinc MOFs with 4, 4’-bipyridine (bipy), amino acidates L-serinate (Ser) and L-threoninate (Thr) and DMF/water molecules: {;[Zn2(μ-Ser)2(μ- bipy)3](NO3)2·(DMF/H2O)};n (1) and {;[Zn4(μ-Thr)4(H2O)(μ-bipy)4(DMF)] (NO3)4·(DMF/H2O)};n (2) (Figure 1). 1 has a large volume ratio of solvent molecules (≈ 44%), forming 2D channels, while 2 has a 25% volume ratio of solvent molecules which form 1D channels.

amino acids ; crystal structures ; metal-organic frameworks ; zinc

nije evidentirano