Hydrothermal synthesis and characterization of an unprecedented η-type octamolybdate: [{Ni(phen)2}2(Mo8O26)]

A new octamolybdate-supported transition metal complex [{Ni(phen)2}2(Mo8O26)] (1) has been hydrothermally synthesized and characterized by the elemental analyses, IR spectrum, XPS spectra, TG analysis and the single crystal X-ray diffraction. Compound 1 crystallizes in the monoclinic space group P21/c, a=10.446(2) Å, b=12.103(2) Å, c=21.956(4) Å, β=97.81(3)°, V=2750.0(10) Å3, and Z=2. The single crystal X-ray diffraction analysis reveals that compound 1 is constructed from a novel unprecedented η-type octamolybdate cluster linked to two {Ni(phen)2}2 coordination complexes.