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The least basic nitrogen atom in purine is the N9 atom.

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How are purine and pyrimidine numbering systems different in nucleic acids?

The numbering systems for purine and pyrimidine bases in nucleic acids are different because purines are numbered starting from the nitrogen atom in the ring, while pyrimidines are numbered starting from the carbon atom in the ring.


Which is more basic pyrrole or indole?

Indole is more basic than pyrrole due to the presence of the nitrogen atom in the benzene ring of the indole structure. The lone pair of electrons on the nitrogen atom in indole makes it more basic compared to pyrrole, which lacks this nitrogen atom in the benzene ring.


Which is more basic pyridine or quinoline?

Pyridine is more basic than quinoline. This is because the nitrogen atom in pyridine is more readily available to accept a proton compared to the nitrogen in quinoline due to the presence of an additional ring in quinoline which delocalizes the lone pair of electrons on the nitrogen atom, making it less basic.


Why isoquinoline is more basic then quinoline?

Isoquinoline is more basic than quinoline due to the presence of an extra nitrogen atom in the heterocyclic ring. This extra nitrogen can accept a proton more readily, making isoquinoline more basic. The lone pair of electrons on the additional nitrogen atom is more available for protonation compared to the lone pair on the nitrogen in quinoline.


What are the key differences between amine and imine compounds?

Amines are organic compounds with a nitrogen atom bonded to hydrogen atoms, while imines have a nitrogen atom bonded to a carbon atom. Amines are basic, while imines are not. Amines have a lone pair of electrons on the nitrogen atom, while imines have a double bond between the nitrogen and carbon atoms.

Related Questions

How are purine and pyrimidine numbering systems different in nucleic acids?

The numbering systems for purine and pyrimidine bases in nucleic acids are different because purines are numbered starting from the nitrogen atom in the ring, while pyrimidines are numbered starting from the carbon atom in the ring.


Which is more basic pyrrole or indole?

Indole is more basic than pyrrole due to the presence of the nitrogen atom in the benzene ring of the indole structure. The lone pair of electrons on the nitrogen atom in indole makes it more basic compared to pyrrole, which lacks this nitrogen atom in the benzene ring.


Which is more basic pyridine or quinoline?

Pyridine is more basic than quinoline. This is because the nitrogen atom in pyridine is more readily available to accept a proton compared to the nitrogen in quinoline due to the presence of an additional ring in quinoline which delocalizes the lone pair of electrons on the nitrogen atom, making it less basic.


Why isoquinoline is more basic then quinoline?

Isoquinoline is more basic than quinoline due to the presence of an extra nitrogen atom in the heterocyclic ring. This extra nitrogen can accept a proton more readily, making isoquinoline more basic. The lone pair of electrons on the additional nitrogen atom is more available for protonation compared to the lone pair on the nitrogen in quinoline.


What are the key differences between amine and imine compounds?

Amines are organic compounds with a nitrogen atom bonded to hydrogen atoms, while imines have a nitrogen atom bonded to a carbon atom. Amines are basic, while imines are not. Amines have a lone pair of electrons on the nitrogen atom, while imines have a double bond between the nitrogen and carbon atoms.


What contains at least 3 carbon atoms at least 1 nitrogen and oxygen atom and hydrogen atoms?

Kevlar does.


Is nitrogen an neutral atom or an ion?

Neutral atom. An atom of nitrogen will also be an isotope of nitrogen.


How many electrons in an atom of nitrogen?

A nitrogen atom has seven electrons.


What basic units compose ni3?

Ni3 is composed of one nitrogen atom and three iodine atoms.


What is arylamine?

An arylamine is an amine having at least one aryl group attached to the nitrogen atom.


What are the key differences between the amine and amide functional groups in organic chemistry?

The key difference between amine and amide functional groups in organic chemistry is the presence of a nitrogen atom bonded to hydrogen in amines, while amides have a nitrogen atom bonded to a carbonyl group. Amines are basic and have a lone pair of electrons on the nitrogen atom, while amides are less basic and have a resonance structure due to the carbonyl group.


What is the color of nitrogen atom?

At the level of individual atoms, no atom has color.