How many NMR signals does aniline have?
Aniline(62-53-3) 1H NMR.
What is the chemical shift for aromatic protons?
In aromatic compounds like benzene, the protons on the aromatic ring are shifted downfield. For example, the six protons in benzene are magnetically and chemically equivalent and appear at 7.33 ppm. This is farther downfield than alkene protons, which appear between 4.5-6.5 ppm.
Is aniline basic?
Aniline is a weak base. Aromatic amines such as aniline are, in general, much weaker bases than aliphatic amines.
What is the chemical shift for the carbon that holds the most downfield proton?
A general rule to remember about chemical shifts of protons on saturated carbon is that the methylene proton (CH2) chemical shift will appear approximately 0.2-0.4 ppm downfield from the corresponding methyl proton chemical shift, and the methine proton (CH) chemical shift will appear approximately 0.2-0.4 ppm …
Is aniline a good base?
Aniline is a weak base. Aromatic amines such as aniline are, in general, much weaker bases than aliphatic amines. Aniline reacts with strong acids to form the anilinium (or phenylammonium) ion (C6H5-NH3+).
What kind of gas is aniline used for?
Produces toxic oxides of nitrogen during combustion. Used to manufacture other chemicals, especially dyes, photographic chemicals, agricultural chemicals and others. Aniline is a clear to slightly yellow liquid with a characteristic odor.
What is the chemical shift of 13C NMR?
13C NMR Chemical Shift. Carbon NMR Chemical Shifts. Carbon ( 13 C) has a much broader chemical shift range. One important difference is that the aromatic and alkene regions overlap to a significant extent. We now see all the carbons, though quaternary carbons (having no hydrogens) are usually quite weak; the proton decoupling process gives rise
How to calculate 1H NMR aromatic chemical shift?
1H NMR Aromatic Chemical Shift Calculator Select a compound from the list below and click on ‘Show’, or select a group and then click on the carbonwhere you want the group to appear. Click twice to remove a group. MHz: 60 90 200 300 400 600
What is the viscosity of aniline at 20 °C?
Structure and properties Index of refraction, nD 1.5863 at 20 °C Bond angle ? Magnetic susceptibility ? Surface tension 44.0 dyn/cm at 10 °C 42.9 dyn/cm at 20 ° Viscosity 6.023 mPa·s at 12 °C 4.467 mPa·s at 20 °