摘要

A new inorganic-organic open framework based on Wells-Dawson arsenomolybdate, {Ag(diz)(2)}(3)[{Ag(diz)(2)}(3)(As2Mo18O62)]center dot H2O (1) (diz = 1,2-diazole) has been hydrothermally synthesized and characterized by elemental analysis, IR, TG, UV, XRD, and single-crystal X-ray diffraction. In compound 1, each {As1Mo18) cluster uses six terminal oxygen atoms on 'equator' position to attract peripheral six {Ag(diz)(2)} linkers, which are further connected by six Dawson clusters located on two different planes via unique equator-to-equator interlaced ways to form a unprecedented 3D network with {8(12 center dot)12(3)}{8}(3) topology. Compound 1 represents the highest covalent connectivity of 3-D Dawson arsenomolybdate, which exhibits merit photocatalytic properties for degradation of refractory dyes Azon Phloxine (AP) under UV light. In addition, compound 1 has a potent inhibition effect on proliferation of Human gastric adenocarcinoma cells (SGC-7901).