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A novel tetrazole-containing triphenylamine-based MOF {TBA[Cu 2 (TPA)]}·CH 3 CN (Cu–TPA ; TBA = tetrabutylammonium cation) has been solvothermally synthesized by the reaction of CuCl 2 ·2H 2 O, tris(4-(2 H -tetrazol-5-yl)phenyl)amine (H 3 TPA) and (TBA) 4 [W 10 O 32 ] and structurally characterized by IR spectrum, UV–Vis spectrum, fluorescence analysis, powder X-ray diffraction (PXRD) and single-crystal X-ray diffraction. More interestingly, Cu–TPA exhibits remarkable heterogeneous photocatalytic property and promotes the oxidative C C coupling reaction under mild conditions. The high catalytic efficiency, high stability and good recyclability of the photocatalyst Cu–TPA demonstrate the superiority of the tetrazole-containing triphenylamine-based MOF over homogeneous systems and other noble-metal-catalyzed methods. A novel tetrazole-containing triphenylamine-based MOF {TBA[Cu 2 (TPA)]}·CH 3 CN has been prepared, which exhibits remarkable photocatalytic activities for the oxidative C C coupling reaction under mild conditions. Unlabelled Image • a novel photosensitizing triphenylamine-based MOF; the photocatalytic oxidative C–C coupling reaction. • the high catalytic efficiency, high stability and good recyclability; the use of a free and renewable energy source as the light source [ABSTRACT FROM AUTHOR]

Abstract The reaction of [(n -C 4 H 9) 4 N] 4 [W 10 O 32 ], 3-amino-4,4′-bipyridine (NPY) and Cu(ClO 4) 2 ·6H 2 O by a diffusion method led to a novel 3D decatungstate-based MOF {[Cu(NPY) 2 (DMF)] 2 (W 10 O 32)}·DMF·3CH 3 CN (referred to as DT–NPY) with 1D hydrophilic/hydrophobic channels, which was structurally characterized by elemental analyses, IR spectrum, UV–Vis spectrum, powder X-ray diffraction (XRD) and single-crystal X-ray diffraction. DT–NPY exhibits remarkable photocatalytic activities for the oxidation of cyclohexane to cyclohexanone and cyclohexanol by molecular oxygen under mild conditions. The high catalytic efficiency, high stability and good recyclability of the photocatalyst DT–NPY demonstrates the superiority of the decatungstate imbedded MOF over homogeneous systems and other heterogenization methods. Graphical abstract A novel photosensitizing decatungstate-based MOF {[Cu(NPY) 2 (DMF)] 2 (W 10 O 32)}·DMF·3CH 3 CN has been prepared, which exhibits remarkable photocatalytic activities for the oxidation of cyclohexane to cyclohexanone and cyclohexanol by molecular oxygen. Unlabelled Image Highlights • a novel photosensitizing decatungstate-based MOF • the photocatalytic oxidation of cyclohexane with molecular oxygen • the high catalytic efficiency, high stability and good recyclability • the use of a free and renewable energy source as the light source [ABSTRACT FROM AUTHOR]