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Catherine M. Oertel, Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH

Solvothermal Synthesis of Inorganic-Organic Network Materials Based on Tetrathiometallate MS 4 2− (M = Mo, W) Anions. Catherine M. Oertel, Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH.

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Catherine M. Oertel, Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH

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  1. Solvothermal Synthesis of Inorganic-Organic Network Materials Based on Tetrathiometallate MS42− (M = Mo, W) Anions Catherine M. Oertel, Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH Solids containing MoS42− anions serve as precursors to MoS2-based hydrodesulfurization catalysts. Our targets are well-characterized crystalline structures containing these species as well as Ni2+ or Co2+ ions that act as promoters. These compounds will provide improved starting points to optimize the conditions used to produce activated catalysts. A new polymorph of Ni(en)3MoS4 (en = ethylenediamine) has been prepared, along with isostructural Co2+ and Mn2+ analogues. The new polymorph (A) differs from a previously reported structure (B) in the packing of the ions within the unit cells and in the detailed configurations of the en ligand backbones. Cell packing in polymorphs A (left) and B (right). MoS42− units shown in orange, L-Ni(en)32+ in blue, and D-Ni(en)32+ in green. Solvothermal reaction temperature can be used to control polymorph formation (left). The new A structure is formed between ambient temperature and 80 oC, and polymorph B is favored at higher temperature.

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