Rotational Spectrum, Structure, and Electric Dipole Moment of bis(Difluoromethyl) Ether(E134)

Published

June 1, 1998

Author(s)

R D. Suenram, Francis J. Lovas, Angela R. Hight Walker, D Dixon

Abstract

The rotational spectrum of bis (difluoromethyl) ether (CF₂HOCF₂H) has been observed and analyzed using both a conventional Stark-modulated microwave spectrometer and a pulsed-molecular-beam Fabry-Perot cavity microwave (FTMW) spectrometer. The lowest energy conformer studied here has a (hydrogen) syn-anti conformation. The high sensitivity of the FTMW spectrometer permits observation and analysis of the ¹³C, ¹⁸O, and ²H isotopomers in natural abundance. The electric dipole moment was measured for the normal species and found to be υ_a = 5.020(7) x 10^-30 C.m [1.505(2)D], υ_b = 0.19(4) x 10^-30 C.m [0.056(11) D], and υ_c = 0.48(2) x 10^-30 C.m [0.144(7) D] and υ_T = 5.047(10) x 10^-30 C.m [1.513(3) D].

Citation

Journal of Molecular Spectroscopy

Volume

192

Pub Type

Journals

Keywords

ab initio calculation, bis(Difluoromethyl) Ether, electric dipole moment, Fourier Transform spectroscopy, molecular structure, rotational spectrum

Citation

Suenram, R. , Lovas, F. , Hight, A. and Dixon, D. (1998), Rotational Spectrum, Structure, and Electric Dipole Moment of bis(Difluoromethyl) Ether(E134), Journal of Molecular Spectroscopy (Accessed October 10, 2025)