Synthesis and X-ray Crystal Structure of a Soluble Zinc Silicate Polyhedron, [(Me<sub>2</sub>NC<sub>6</sub>H<sub>4</sub>NMe<sub>2</sub>)ZnLi{O<sub>3</sub>Si(Me<sub>3</sub>Si)N(2,6-<i>i</i>-Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>)}]<sub>4</sub><sup>†</sup>
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The reaction between a mixture of Me2Zn and MeLi with RSi(OH)3 (R = 2,6-i-Pr2C6H3NSiMe3) in the presence of N,N,N‘,N‘-tetramethyl-1,4-phenylenediamine in THF/hexane leads to the formation of compound (LZnLiO3SiR)4 (L = Me2NC6H4NMe2, R = 2,6-i-Pr2C6H3NSiMe3), 1. The molecular structure of compound 1 shows a central planar eight-membered Li4O4 ring, which is sandwiched between two puckered eight-membered Zn2Si2O4 rings. The periphery of the central Li4Zn4Si4O12 polyhedron is surrounded by hydrophobic groups, explaining the high solubility of 1 in common organic solvents. This is the first molecular zinc siloxane compound characterized by single-crystal X-ray diffraction studies.
创建时间：
2016-08-26
