How do auxochrome groups work? - Chemistry Stack Exchange
Apr 28, 2015 · Functional groups like $\\ce{OH}$, $\\ce{NH2}$, attached to unsaturated compounds (chromophores) are called auxochromes. These groups tend to shift the …
Auxochrome groups and red shift - Chemistry Stack Exchange
Jun 1, 2023 · Wikipedia states that "An auxochrome is known as a compound that produces a batochromic shift, also known as a red shift because it increases the absorption wavelength, …
Why does 2,4 DNP give orange colour crystals?
Jul 10, 2018 · Among the chromophore structures, there are groups such as nitro, azo, nitrile, thioketone, conjugated double bonds ( like in retinal, carotene ). Some auxochrome structures …
Highly conjugated compounds and the effects of substiuents
Mar 14, 2019 · An auxochrome as listed won't necessarily delocalise over the conjugated system in complicated structure, or it can marginally do so. Thus, don't assume that if there is a …
What is the origin of colours? - Chemistry Stack Exchange
Mar 26, 2014 · $\begingroup$ @Klaus Warzecha I understand that the azo-dye absorbs a specific frequency of light and we see the complementary colour.
Assigning the 13C NMR spectrum of bromobenzene and 4 …
$\begingroup$ Good question. For 13C the shifts are never as intuitive as that for 1H, because the factors dictating shifts can be different (see linked question in next comment).
Effect of nitro group basicity order of o,m and p nitroanilines?
Nov 25, 2018 · Would someone please help me with this? The order of basicity of o,m and p nitroanilines is m>o>p. My book states that ortho isomer has -I effect, -M effect as well as …
organic chemistry - Why are different colors, according to sugar ...
Sep 15, 2017 · Benedict's Reagent is just simply $\ce{Cu^2+}$ ions in the form of copper citrate. When Benedict's Reagent finds an aldose (a sugar with an aldehyde group), it can oxidize the …