Accession Number : AD0485272

Title :   MOLECULAR COMPLEXES OF AROMATIC HYDROCARBON AND AZAHYDROCARBON ACCEPTORS.

Descriptive Note : Technical publication, Feb-May 66,

Corporate Author : NAVAL ORDNANCE TEST STATION CHINA LAKE CA

Personal Author(s) : Hammond, P. R. ; Knipe, R. H.

Report Date : JUL 1966

Pagination or Media Count : 30

Abstract : The strong donor properties of tetrakis (dimethylamino) ethylene (MAE) are determined by its interactions with pi acceptors. Colors of n-hexane solutions of this donor with pyrene, anthracene, and perylene are ascribed to intermolecular charge-transfer transitions, where the hydrocarbons function as electron acceptors. Azahydrocarbons similarly produce colors and are stronger acceptors. All association constants for complex formation ith the tetraaminoethylene are close t6 zero and this is ascribed to the bulk of the TMAE molecule, and all colors may be made to disappear in the frozen solutions or in the frozen, pure materials. These results and experimental evidence from other sources are correlated with a proposed electronic structure of TMAE. A consideration of the factors that stabilize acceptor-donor complexes, is used to reinterpret an earlier proposal that such an interaction occurs between the methylbenzenes and anthracene. (Author)

Descriptors :   (*ALKENES, REACTION KINETICS), (*COMPLEX COMPOUNDS, SYNTHESIS(CHEMISTRY)), (*AROMATIC COMPOUNDS, HYDROCARBONS), (*HYDROCARBONS, POLYCYCLIC COMPOUNDS), MOLECULAR ORBITALS, MOLECULAR STRUCTURE, STEREOCHEMISTRY, TRANSPORT PROPERTIES, ELECTRON TRANSITIONS, NITROGEN HETEROCYCLIC COMPOUNDS, PYRIDINES, NITROBENZENES, COLORS, ULTRAVIOLET SPECTRA, VISIBLE SPECTRA.

Subject Categories : Organic Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE