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Why many aromatic hydrocarbons do not have any odor while compounds that have a pleasant odor do not have aromatic rings?
Wiki User
∙ 10y ago
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
Wiki User
∙ 10y ago
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What are the characteristic of aromatic hydrocarbons?
Principal characteristics of aromatic hydrocarbons are:- the contain benzenic rings- frequently they have an agreeable odor- they burn with soot; this is a disadvantage- the ratio carbon/hydrogen is great
What types of aromatic compounds will couple with an aromatic diazonium salt?
activated rings of phenol and aromatic amines-- that is based from the manual. you can read it if you like...
Why is tryptophan included under aromatic amino acids rather than heterocyclic compounds?
It is both. Aromatic compounds need to be planar rings with contiguous pi-systems of 4n+2 electrons. Both rings in tryptophan are aromatic, and the five-membered ring is also a heterocycle.
What are cyclic hydrocarbons give two example?
Cyclic hydrocarbons are organic compounds made of carbon and hydrogen. They are structured in rings, or circles. Two examples are cyclobutane and cyclopropane.
Do Carbon compounds form rings or long chains?
Yes, both. Ring structures are called cyclic compounds and can be aromatic or aliphatic, there are a wide variety of cyclic compounds that can be made/found, such as furan and pyridine (both heterocycles). Functional groups such as OH can also be attached to a cyclic ring. "Chains" are aliphatic and are termed acyclic
What are the characteristic of aromatic hydrocarbons?
Principal characteristics of aromatic hydrocarbons are:- the contain benzenic rings- frequently they have an agreeable odor- they burn with soot; this is a disadvantage- the ratio carbon/hydrogen is great
What is a characteristic of aromantic hydrocarbons?
Alternating single and double bonds
What are characteristics of aromatic hydrocarbons?
Principal characteristics of aromatic hydrocarbons are:- the contain benzenic rings- frequently they have an agreeable odor- they burn with soot; this is a disadvantage- the ratio carbon/hydrogen is great
What is the difference between aromatic and aliphatic compounds?
Aliphatic compounds could be straight chain structures [Acyclic] like alkanes or cyclic structures, like cycloalkanes. Aliphatic compounds are hydrocarbon chains - strings of carbon atoms connected to each other with hydrogen atoms hanging off the sides of the chain. one exception for the definition of aliphatic side chain is Proline which also has aliphatic side chain but the its side chain is bonded to both carbon and nitrogen. Aromatic compounds have benzene ring (older notion). Aromatic compounds are those which follow Huckel's rule. (4n + 2pi) rule. They have the general formula: CnH2n-6 [where n is equal to or greater than 6] Aromatic compounds are rings - so take the chain and connect the two ends together to form a continuous loop.
What types of aromatic compounds will couple with an aromatic diazonium salt?
activated rings of phenol and aromatic amines-- that is based from the manual. you can read it if you like...
Why is tryptophan included under aromatic amino acids rather than heterocyclic compounds?
It is both. Aromatic compounds need to be planar rings with contiguous pi-systems of 4n+2 electrons. Both rings in tryptophan are aromatic, and the five-membered ring is also a heterocycle.
What do the structures of aromatic compounds have in common?
all aromatic compounds have 1) delocalized pi electrons (usually in conjugated double bonds) 2) 4n+2 pi electrons to be shared on adjacent atoms... this is "Huckles" rule 3) a planar structure 4) rings.. aromatic compounds are cyclic
What are some componds with carbon rings?
Examples of aromatic compounds: benzene, toluene, xylene, anilin, etc.
What do the structures of all aromatic compounds have in common?
all aromatic compounds have 1) delocalized pi electrons (usually in conjugated double bonds) 2) 4n+2 pi electrons to be shared on adjacent atoms... this is "Huckles" rule 3) a planar structure 4) rings.. aromatic compounds are cyclic
What are cyclic hydrocarbons give two example?
Cyclic hydrocarbons are organic compounds made of carbon and hydrogen. They are structured in rings, or circles. Two examples are cyclobutane and cyclopropane.
What is hetrocyclic compound?
Heterocyclic compounds are organic compounds containing at least one atom of carbon, and at least one element other than carbon, such as sulfur, oxygen or nitrogen within a ring structure.These structures may comprise either simple aromatic rings or non-aromatic rings. Some examples are pyridine (C5H5N), pyrimidine (C4H4N2) and dioxane (C4H8O2).
Is the category of organic compounds of four interconnected rings of carbon atoms is known as steriods?
steroids is correct. four interconnected rings are characteristic of steroids.
