Accession Number:

AD0728917

Title:

Chemistry of Aliphatic Unconjugated Nitramines. Part 4. Photophysical Processes of Secondary Nitramines,

Descriptive Note:

Corporate Author:

DEFENCE STANDARDS LABS MARIBYRNONG (AUSTRALIA)

Personal Author(s):

Report Date:

1970-07-01

Pagination or Media Count:

11.0

Abstract:

A zero-order Born-Oppenheimer approximation of the electronically excited states of secondary aliphatic unconjugated nitramines is given, and their subsequent photophysical process, for irradiation with 254 nm light, are deduced therefrom. This data could not be obtainted by experiment. The authors suggest that RDX and HMX form charge transfer CT complexes upon crystallization. These complexes appear unique in that their CT exciton band is of lower energy than the normal singlet exciton band of their molecular crystals. Static reactivity indices are used to predict the likely primary dissociative products obtainable from each excited state of secondary nitramines theory predicts that the axial and equatorial nitramine groups of the polynitramines RDX, alpha- and beta-HMX, may possess quite novel selective decomposition paths and hence give different primary dissociative products. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE