Two New Diverse 3d Mofs Induced By Ligand Salt Type: Photocatalytic Performance

Self-assembly of Zn(Ac)(2)center dot 2H(2)O with pi-conjugated and rigid multicarboxylate ligand 1,3,5-benzenetricarboxylic acid (H3BTC) and flexible N-donor linker 1,3-bis(2-methylimidazolyl)propane generated two new metal-organic frameworks (MOFs), [Zn-7 (mu(3)-OH)(2)(BTC)(4) (bmp)(2)(H2O)(4)center dot 2H(2)O center dot 2DMF](n) (1) and [Zn(BTC) (Hbmp)center dot H2O](n) (2). 1 has a pentanuclear [Zn-5 (mu(3)-OH)(2)] subunit, which is further connected by the BTC ligands to shape a layer. The 2D layer is further bridged by BTC and monuclear metal to form a 3D framework. The 3D zinc-BTC substructure has 1D open channels filled by bmp ligands. Polymer 2 shows a 4-connected 3D cds network. While a variation of bmp was imported into the zinc-btc system yielding a two different topological networks, demonstrating that the ligand salt type has an apparent effect in the building of the final networks. Their photochemical properties were measured.