Potential constants and structure of the UF5 monomer

Abstract

Three infrared-active UF stretching modes have been observed for UF5 isolated in argon and neon matrices. From the frequencies and their relative intensities the structure and UF force constants have been estimated. It is quite clear that the molecule has C4v symmetry, the axial bond has the same strength as the UF bonds in UF6, the radial bonds are somewhat weaker, and the axial–radial UF, UF′ angle is about 101°.