The Crystal and Molecular Structure of N-Methylacetanilide.

Furan–quinone pigments. I. The crystal and molecular structure of N-(2'-pyridyl)-8,13-dioxodinaphtho[2,1-b:2',3'-d]furan-6-carboxamide

“…A similar enlargement (to 127.6 ° ) occurs in acetanilide (Brown, 1966). By contrast, the C-N-C angle is 119.6 ° in (Hamilton, 1965), r-ACAM = r-acetamide (Denne & Small, 1971), ACAN=acetanilide (Brown, 1966), NMeACAN=N-methylacetanilide (Pedersen, 1967), NMeTNACAN = N-methyl-2,4,6-trinitroacetanilide (Christoph & Fleischer, 1973). N-methylacetanilide (Pedersen, 1967), where the steric interaction between the ring and substituent is relieved by rotation of the phenyl group.…”

“…By contrast, the C-N-C angle is 119.6 ° in (Hamilton, 1965), r-ACAM = r-acetamide (Denne & Small, 1971), ACAN=acetanilide (Brown, 1966), NMeACAN=N-methylacetanilide (Pedersen, 1967), NMeTNACAN = N-methyl-2,4,6-trinitroacetanilide (Christoph & Fleischer, 1973). N-methylacetanilide (Pedersen, 1967), where the steric interaction between the ring and substituent is relieved by rotation of the phenyl group. The average bond lengths and bond angles within the quinone ring of the DFC molecule compare very favorably with those found in 2-N,N-diethylamino-3methoxycarbonylnaphtho[2,3-b]thiophene-4,9-dione, NCNTD (Gibbons, Lerbscher & Trotter, 1972) which contains a thiophene ring fused to the quinone portion of a naphthoquinone ring system.…”

Spectroscopic evidence for Davydov-like solitons in acetanilide

“…As was noted in Ref. 2, we believe that these vibrations involve the hydrogen-bonding proton but here we avoid a suggestive notation. For analytic convenience we represent all of the low-frequency vibrations by a single classical harmonic oscillator along the coordinate q"(t) with frequency co and elastic constant W. A more detailed E"i Ep X /2W .…”

The orthorhombic form of p-hydroxyacetanilide

“…The atoms N and O(1) deviate from the benzene ring plane by + 0.111 and + 0.060 ./~, respectively. The deviations of the N atoms are 0.046 A in acetanilide and 0-150 • in N-methylacetanilide (Pedersen, 1967).…”