Assertion: vanillin's group | /r/AtLocation | aromatic rings
Facets:
Source sentences:
text: Compared to the spectrum of vanillin, the disappearance of the peaks at 9.7-9.8 ppm in MV indicated the consumption of hydroxyl groups attached to aromatic rings.
text: Vanillin is a lignin model compound containing an aldehydic group attached to an aromatic ring.
text: −1 is due to the C–O stretching vibration of the aldehyde group attached to aromatic rings.
text: The strong and sharp peak at 1675 cmis due to the C–O stretching vibration of the aldehyde group attached to aromatic rings.
text: Compared to the spectrum of vanillin, the disappearance of the peaks at 9.7-9.8 ppm in MV indicated the consumption of hydroxyl groups attached to aromatic rings.