A highly photocatalytic polyoxomolybdate compound constructed from novel-type triple helix {Mo4O12}n chains and copper(i)–organic nets†
Abstract
A novel-type 3D polyoxomolybdate–organic framework, {[Cu3(H3tpb)2(tpb)(Mo4O12)]·4H2O}n (1, H3tpb = 1,3,5-tri(1H-pyrazol-3-yl)benzene), was prepared and characterized by elemental analysis, IR spectroscopy, and luminescence analysis. Single-crystal X-ray diffraction analysis reveals that novel neutral triple helix {Mo4O12}n chains are encased in bowl-like 2D [Cu3(H3tpb)2(tpb)]n intervals via bond interactions between terminal oxygen atoms and cations of Cu(I), leaving an unprecedented (3,3,5,8)-connected (3·4·68)3(36·46·86·96·104)(43)2(63) topology. Moreover, compound 1 exhibits remarkable photocatalytic activities for decomposition of methylene orange (MO), methylene red (MR), methylene blue (MB), methylene violet (MV), and rhodamine B (RhB) under UV light.