Infrared Spectroscopic Characterization of Five Variants of Pinacolyl Methylphosphonofluoridate (GD)

Abstract

Five variants of pinacolyl methylphosphonofluoridate (GD) were analyzed in the mid-infrared region using a combination of variable-angle spectral ellipsometry and high-resolution vapor-phase spectroscopy. We report the complex optical constants (n^=n + ik; where ^ denotes a complex quantity, n is the real part of the refractive index, and ik is the imaginary refractive index) of all five variants, as well as the effects of impurities on the vapor-phase spectra of the effluent from two weapons-grade samples. The data showed that volatile impurities in chemical agents can influence the resulting vapor-phase spectra in a manner that is out of proportion to the concentrations of the impurities in the agent, whereas the impact of the impurities on the liquid-phase spectra may be much smaller.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2019
Accession Number
AD1075788

Entities

People

  • Alan C. Samuels
  • Barry R. Williams
  • Clayton S.c Yang
  • Melissa S. Hulet
  • Ronald W. Miles

Tags

Communities of Interest

  • Counter WMD
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemical Warfare
  • Chemical Warfare Agents
  • Chemical Weapons
  • Chemistry
  • Detectors
  • High Resolution
  • Liquid Phases
  • Measurement
  • Optical Properties
  • Partial Pressure
  • Phase
  • Physical Properties
  • Refractive Index
  • Spectra
  • Spectroscopy
  • Vapor Phases

Readers

  • Analytical Chemistry
  • Linear Algebra
  • Optical Physics and Photonics.