SOLVENT EFFECTS ON CHARGE-TRANSFER COMPLEXES. I. THE s-TRINITROBENZENE-NAPHTHALENE COMPLEX IN CARBON TETRACHLORIDE, n-HEPTANE, n-HEXANE, CYCLOHEXANE, CHLOROFORM, OR CARBON DISULFIDE,
Abstract
Formation consand absorptivities for the 1:1 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 constant(K) is independent of wave length at each temperature in all solvents except n-heptane where at 20 C. K, in moles/liter 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0416143
Entities
People
- C. C. Thompson Jr.
- P. A. D. Demaine
Organizations
- University of Mississippi