The vibrational dependence of the dipole moment of hydrogen fluoride

Abstract

Molecular beam laser Stark spectroscopy has been used to measure the υ = 3 vibrational state dipole moment of hydrogen fluoride as 1.9614 ± 0.0021 debye. This measurement allows μυ to be expressed as a power series expansion in [Formula: see text] without the use of infrared intensity data. A detailed comparison is made with similar series based mainly on infrared intensity data and more recent ab initio calculations.