Near-infrared N-H bands of primary aromatic amines in chloroform solution
1961; Elsevier BV; Volume: 17; Issue: 6 Linguagem: Inglês
10.1016/0371-1951(61)80122-7
ISSN1873-3816
Autores Tópico(s)Solid-state spectroscopy and crystallography
ResumoThe first overtone N-H stretching bands and the combination N-H band of aniline and thirty-seven of its ring-substituted derivatives were studied in carbon tetrachloride and chloroform solutions. The effects of solvent on the frequencies and the peak molar absorptivities of the bands vary widely depending on the structure of the compound. These effects are discussed in terms of Hammett's σ-constants and the acid dissociation constants of the amines. The integrated molar absorptivities of the first overtone bands exhibit much smaller solvent effects than the peak absorptivities, and the effects vary only slightly with the structure of the compound.
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