THE INFRARED SPECTRA OF MARGINALLY METALLIC SYSTEMS, SODIUM-AMMONIA SOLUTIONS
The sodium-ammonia solution system permits investigation of an array of compositions spanning the transition from nonmetallic to metalic bonding. Reflection spectra in the range 1 to 20 mu wers measured for solutions of mole ratio 5.5 to 168 NH/sub 3/ per Na. The diluts solutions show peaks characteristic of the vibrations of ammonia and a strong peak near 1.5 mu which is assigned to the aolvated Na/sub 2/ species. Concentrated solutions show high reflectivity over broad wavelength ranges. The results for nearly saturated solutions are fitted reasonably by the free electron model, but in the range of mole ratlo 10 to 15 a complex array of energy absorption processes of finite frequencies are required to fit the spectra. (auth)
- Research Organization:
- California. Univ., Berkeley, Lawrence Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-15-015978
- OSTI ID:
- 4033428
- Report Number(s):
- UCRL-9586
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photoemission studies of the metal-nonmetal transition of sodium on solid ammonia
Resolution of the optical spectra of sodium solutions in liquid ammonia into two experimentally unresolvable bands