Accession Number:

AD0416143

Title:

SOLVENT EFFECTS ON CHARGE-TRANSFER COMPLEXES. I. THE s-TRINITROBENZENE-NAPHTHALENE COMPLEX IN CARBON TETRACHLORIDE, n-HEPTANE, n-HEXANE, CYCLOHEXANE, CHLOROFORM, OR CARBON DISULFIDE,

Descriptive Note:

Corporate Author:

MISSISSIPPI UNIV UNIVERSITY

Report Date:

1962-01-01

Pagination or Media Count:

28.0

Abstract:

Formation consand absorptivities for the 11 s-trinitrobenzene-naphthalene complex in six inert solvents CCl4, n-hexane, cyclohexane, n-heptane, CHCl3, or CS2 were calculated with spectrophotometric data collected at fifteen wavelengths between 3300 and 4000 A at 20 and 45 C. All data were processed with an IBM 1620 60 K computer. Absorptivities for the complex at the absorption maxima near 3600A at 20 C vary from 1294 -22 for n-heptane to 1540 13 for n-hexane. As the temperature is increased from 20 to 45 C., the absorptivities decrease by ap proximately 10 except in CHCl3 systems where those between 3650 and 4000 A are unchanged. The formation constantK is independent of wave length at each temperature in all solvents except n-heptane where at 20 C. K, in molesliter units, it is 9.58 0.17 for wavelengths between 3300 and 3700 A, and gradually increases to 14.61 0.17 at 4000 A. At 45 C. K in n-heptane is 6.12 0.09 at wavelengths up to 3850 A, and it increases to 8.27 0.09 at 4000 A. Average values for K at 20 C. vary from 1.82 0.08 in CHCl3 to 9.58 0.17 in n-heptane. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE