A porous and photoactive Ti-MOF based on a novel tetranuclear [Ti₂Tb₂] cluster

A robust and porous titanium metal-organic framework (Ti-MOF; LCU-505) has been solvothermally synthesized based on an unprecedented tetranuclear Ti-2(mu(3)-O)(2)Tb-2(mu(2)-CH3COO)(2)(H2O)(4)(OOC-)(8) cluster (abbreviated as [Ti2Tb2]) and tritopic 4,4 ',4 ''-s-triazine-2,4,6-triyl-tribenzoic acid ligand (H(3)TATB). LCU-505 shows remarkable water stability and permanent porosity for N-2 and CO2 gas adsorption. Moreover, LCU-505 demonstrates n-type semiconductor behavior and good photocatalytic activity in the degradation of organic dyes.