Synthesis, crystal structure and thermal behavior of a new molybdenum–oxygen cluster: [Ni(en)3]2(H3BO3)(MoO4)2·(6H2O)

Abstract: A new molybdenum–oxygen cluster: [Ni(en)3]2(H3BO3)(MoO4)2·(6H2O) containing interstitial boric acid has been synthesized and characterized by elemental analyses, FT-IR spectroscopy and DTA–TG. Its structure was determined by single crystal X-ray diffraction. The title compound crystallizes in a trigonal system and space group with a = b =9.3271 (8)Å, c =12.543 (2)Å, α = β =90°, γ =120°, V =945.0 (2)Å3, Z =1, D c =1.701g/cm3. The structure consists of two MoO4 2− tetrahedra clusters, two [Ni(en)3]2+ octahedra clusters and one H3BO3 unit, in which these clusters are absolute and self-assemble via NO and OO hydrogen bonds to form a wide range of supramolecular frameworks. The thermal decomposing process occurs in three steps. [Copyright &y& Elsevier]