he first known use of the word "aromatic" as a chemicalterm-namely, to apply to compounds that contain the phenyl radical-occurs in an article by August Wilhelm Hofmann in 1855.
nonaromatic ringsA ring that does not have a loop of pi electrons but is not antiaromatic is said to be nonaromatic. A compound whose molecule contains one of more nonaromatic rings is called a nonaromatic compound. A ring whose pi system contains a 4n number of electrons but avoids being antiaromatic by deviating from planarity is nonaromatic.eg:Experimentally, 3 exists in the following nonplanar conformation, known as the tub conformation, in which no two adjacent double bonds are on the same plane. Thus, there is no loop of pi electrons in the ring in 3; 3 is nonaromatic.A ring whose pi system contains 4n + 2 number of electrons but is forced to deviate from planarity is nonaromatic. Thus, 10is nonaromatic.To find whether a ring is aromatic, antiaromatic, nonaromatic, or none of the above, use the following flow chart.
Isomers.
This compound is organic, aromatic, fused aromatic, and hydroxylic, among other descriptions.
According to scientists, fats are compounds because they include a combination of fatty acids and glycerol. Another term referring to fats is lipids.
C6H6, the formula for benzene, which is the simplest stable and electrically neutral aromatic compound.
Why aromatic compounds have high chemical shift valure?
aromatic diazo compounds are stabilize by resonance where as in alifati it is not found
Not all the anti aromatic compounds have the unpaired electrons, for example cycloocta tetraene
It is false; aromatic compounds is a category of organic compounds with specific odor or color.But many other chemicals have a specific odor or color but they are not aromatic compounds (of course, in the chemical sense).
The aromatic compounds or benzene is mostly found in plant and tree oils. The compound is gathered by coal distillation.
It is false; aromatic compounds is a category of organic compounds.But many other chemicals have a specific odor but they are not aromatic compounds (of course, in the chemical sense).
Benzene is an organic molecule made up of six carbon atoms connected to form a ring. This is called the benzene ring. The benzene ring structure occures in several other, more complex, organic moleculed.
Aryl groups are aromatic compounds and have -I effect whereas alkyl groups are mom aromatic compounds with +I effect
when aromatic compounds were first discovered they were called aromatic due to their plesant odours but as you have rightly pointed out compouns such as diatomic hydrogen have pleasant smells its is becuase of this that the meaning of aromaticity changed as aromatic compounds are saturated stable compounds its the notion of delocalised electrons that defines a aromatic compound now as this enhances the stabilty of the compound so chemically aromatic and aromatic are not particularly synoynymous any more in fact chemical aromacity has very little to do with aromacity and ewhat it does to the oliafactory centres that gives us the perception of smell
Their orbitals unsymmetry make them unstable.
It is false; aromatic compounds is a category of organic compounds.But many other chemicals have a specific odor but they are not aromatic compounds (of course, in the chemical sense).
activated rings of phenol and aromatic amines-- that is based from the manual. you can read it if you like...