Record Display for the EPA National Library Catalog


Main Title Molecular Complexes of 1,1,1-Trichloro-2,2-Bis (p-Chlorophenyl) Ethane with Aromatic Donors.
Author Ross, Ralph T. ; Biros., Francis J. ;
CORP Author Environmental Protection Agency, Perrine, Fla. Primate and Pesticides Effects Lab.
Year Published 1970
Stock Number PB-274 742
Additional Subjects Pesticides ; Chlorine organic compounds ; Aromatic compounds ; Nuclear magnetic resonance ; DDT ; Insecticides ; Toxicity ;
Library Call Number Additional Info Location Last
NTIS  PB-274 742 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
A series of complexes between DDT acting as an electron acceptor and certain aromatic electron donors, including benzene, toluene, durene, mesitylene, pentamethylbenzene, and hexamethylbenzene, have been determined in solution using nuclear magnetic resonance spectroscopy. Variations in the proton chemical shifts between complexed and uncomplexed acceptor molecules are found to change relative to one another in the presence of excess donor. The sensitivity to small changes in the electrical environment of the magnetic nucleus of the acceptor molecule in the presence of donor compounds and the study of appropriate nuclear magnetic resonance parameters affords useful information concerning these complexes. Equilibrium constants for Pi-complex formation in CHCl3 and CCl4 have been determined by the Benesi-Hildebrand method or a modification of it.