Accession Number:

AD0694288

Title:

PARAMAGNETIC RESONANCE SPECTRA OF NO2 TRAPPED IN ALKALI HALIDES,

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF APPLIED CHEMISTRY

Personal Author(s):

• Brailsford,J. R.
• Morton,J. R.

Report Date:

1969-05-02

Pagination or Media Count:

9.0

Abstract:

The impurity NO2 has been introduced into certain alkali-halide crystals. Two configurations of the NO2 molecule have been detected. In the first configuration detectable at 77K the impurity appears to occupy a positive ion vacancy and except for a possible libratory motion is frozen into 110 planes of the lattice. In the second modification the NO2 molecule probably occupies a negative ion vacancy and is rotating even at 2K about its y axis the O---O direction. This axis is parallel to crystallographic 111 directions. An analysis of the 14N and 17O hyperfine data is offered. Author

Descriptors:

• (*NITROGEN OXIDES
• *PARAMAGNETIC RESONANCE)
• ALKALI METAL COMPOUNDS
• HALIDES
• IMPURITIES
• CRYSTAL DEFECTS
• HYPERFINE STRUCTURE
• CANADA

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE