Brian A. Vaarstra, J. Huffman, W. E. Streib
Jul 1, 1991
Citations
0
Influential Citations
51
Citations
Journal
Inorganic Chemistry
Abstract
Barium granules and barium hexamethyldisilzide tetrahydrofuranate are used as reagents for the introduction of barium in the syntheses of heterometallic zirconium isopropoxides. Reaction with 1 or 2 equiv of Zr{sub 2}(O{sup i}Pr){sub 8}(HO{sup i}Pr){sub 2} yields (BaZr{sub 2}(O{sup i}Pr){sub 10}){sub 2} and Ba{l brace}Zr{sub 2}(O{sup i}Pr){sub 9}{r brace}{sub 2}, respectively. The structure of the former has been determined in the solid state by x-ray diffraction studies, and the data are reported. The structure reveals a dimer in which all metal centers are six-coordinate. The compound is also characterized by {sup 1}H and {sup 13}C NMR spectroscopy and elemental analysis. X-ray diffraction data for Ba{l brace}Zr{sub 2}(O{sup i}Pr){sub 9}{r brace} are not acceptably refined but indicate gross skeletal features in which barium is eight-coordinate, surrounded by two Zr{sub 2}(O{sup i}Pr){sub 9}{sup {minus}} fragments. 11 refs., 3 figs., 3 tabs.