Synthesis, spectroscopic, and molecular structure characterizations of some azo derivatives of 2-hydroxyacetophenone

Synthesis, spectroscopic, molecular and computational structure characterizations of (E)-2-ethoxy-6-[(phenylimino)methyl]phenol

“…Some solvents such as DMF and DMSO show hydrogen bond breaking effect. Such an effect by the solvent, leads to the destruction of intramolecular hydrogen bond and subsequently to the formation of an intermolecular type [27,28]. Therefore, we have recorded the UV-Vis spectra in these solvents for different concentrations in order that we can understand whether the intermolecular hydrogen bond exists or not.…”

“…9) even in basic solvent such as DMF. This can be explained by the fact that the compound has a very strong intramolecular hydrogen bond and not converted to intermolecular type even by DMF [27]. In addition, the second (iii) 1 À x, 1 À y, 1 À z].…”

Synthesis, molecular structure, FT-IR, FT-Raman and XRD spectroscopic investigations of (E)-1-(5-((4-bromophenyl)diazenyl)-2- hydroxyphenyl)ethanone: A comparative DFT study

“…For all these reasons, they have recently attracted a lot of attention in experimental and theoretical studies because of undergoing cis-trans photoisomerization in photoexcited state. Some spectroscopic and molecular structure characterizations of some azo derivatives of some 2-hydroxyacetophenone were reported previously [30]. However, novel compound "(E)-1-(5-((4-bromophenyl)diazenyl-2-hydroxyphenyl) ethanone" presented here is a derivative of azo benzene group and providing insight into some structural properties of title compound may be of importance for researchers studying azo compounds.…”

1-{5-[(E)-(2-Fluorophenyl)diazenyl]-2-hydroxyphenyl}ethanone

“…For bond-length data, see: Allen et al (1987); Deveci et al (2005); Karadayı et al, (2006); El-Ghamry et al (2008); Albayrak et al, 2009;Yazıcı et al (2010). H atoms treated by a mixture of independent and constrained refinement Á max = 0.21 e Å À3 Á min = À0.16 e Å À3 Table 1 Hydrogen-bond geometry (Å , ).…”