Molecular structure of dimethyl(trifluorosilyl)arsine
Abstract
The molecular structure of dimethyl(trifluorosilyl)arsine has been determined by gas-phase electron diffraction. The following geometric parameters (ra values) have been obtained: r(As–Si) 2.334(9), r(As–C) 1.979(5), r(Si–F) 1.569(2), and r(C–H) 1.096(12)Å; FSiF 107.3(5), CAsC 97.5(2.8), and SiAsC 93.5(9)°. The bond shortening due to SiH3–SiF3 substitution is discussed.