Hexamethyldisilane

[1450-14-2] C6H18Si2 (MW 146.42) InChI = 1S/C6H18Si2/c1-7(2,3)8(4,5)6/h1-6H3 InChIKey = NEXSMEBSBIABKL-UHFFFAOYSA-N (silylating or reducing reagent in combination with a Pd catalyst or a nucleophile) Physical Data: bp 112–114 °C; d 0.729 g cm−3. Solubility: sol common organic solvents; insol H2O. Form Supplied in: oil; commercially available. Analysis of Reagent Purity: 1H NMR (CDCl3–Me4Si) δ 0.045 (s). Preparative Methods: by standard synthesis.1 Purification: grossly impure sample (25% impurities) is purified by repeated spinning band distillation. This lowered the impurity level to 500 ppm. The main impurity is identified as 1-hydroxypentamethyldisilane. Handling, Storage, and Precautions: stable to H2O and air; flammable liquid; irritant. Readily oxidized by oxidants such as halogen and peroxide. Use in a fume hood.