0
Not quite.
Isomers are compounds that have the same molecular formula but different structures. In general, a molecule will not spontaneously convert from one isomer to another.
Tautomers are a specific type of isomers. Two molecules are tautomers if they differ in the placement of a proton (H+) and a double bond, and readily convert between the two, creating an equilibrium.
For example, one common type of tautomerism is between an enol and a ketone (or aldehyde). In this case, the keto form contains a carbon double-bonded to an oxygen adjacent to a carbon with at least one hydrogen. This is in equilibrium with the enol, which is formed by moving a hydrogen from the second carbon to the oxygen (forming -OH) and the double bond to the oxygen is broken and reformed between the two carbons.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is tautomerism?
Tautomerism refers to an equilibrium between two different structure of the same compound. Usually the tautomers differ in the point of attachment of a hydrogen atom.Tautomers are two forms of a compound that interconvert by a process known as tautomerization. A common type of tautomer is found with ketones. This is called keto-enol tautomerism. The ketone and its enol form are readily interconvertible constitutional isomers that exist in equilibrium with each other. Isomers that differ from each other only in the location of a hydrogen atom and a double bond are proton isomers. Proton tautomers are isomers in which a hydrogen atom and a double bond switch locations between a carbon atom and a heteroatom (which is an atom other than carbon, such as oxygen or nitrogen). There is a rule which states, called Erlenmeyer Rule, which states that all alcohols in which the hydroxyl group is attached directly to a double-bonded carbon atom become aldehydes or ketones. This occurs because the keto form is generally more stable than its enol tautomer. Tautomers differ from each other in locations of atoms as well as electrons, and so are NOT resonance contributors, which are different representations of the same structure.See the Web Links to the left for some diagrams of molecules with are tautomers for a better understanding and more information.
Which compounds have the same molecular formula but different structures?
isomers
Is it true that atoms with the same number of protons but diffrent numbers of neutrons are called isomers?
Not isomers, Isotopes
Do isomers have the same molecular formula?
Yes.
What are molecules that share the same chemical formula but have different shapes?
They are called isomers. Isomers may be structural isomers (e.g. 1-propanol and isopropanol) or stereoisomers (e.g. L-aspartic acid and D-aspartic acid).
What is the relationship between keto and enol tautomers?
Constitutional isomers
What is tautomerism?
Tautomerism refers to an equilibrium between two different structure of the same compound. Usually the tautomers differ in the point of attachment of a hydrogen atom.Tautomers are two forms of a compound that interconvert by a process known as tautomerization. A common type of tautomer is found with ketones. This is called keto-enol tautomerism. The ketone and its enol form are readily interconvertible constitutional isomers that exist in equilibrium with each other. Isomers that differ from each other only in the location of a hydrogen atom and a double bond are proton isomers. Proton tautomers are isomers in which a hydrogen atom and a double bond switch locations between a carbon atom and a heteroatom (which is an atom other than carbon, such as oxygen or nitrogen). There is a rule which states, called Erlenmeyer Rule, which states that all alcohols in which the hydroxyl group is attached directly to a double-bonded carbon atom become aldehydes or ketones. This occurs because the keto form is generally more stable than its enol tautomer. Tautomers differ from each other in locations of atoms as well as electrons, and so are NOT resonance contributors, which are different representations of the same structure.See the Web Links to the left for some diagrams of molecules with are tautomers for a better understanding and more information.
What is the isomerism exhibitted by propanone and 2- hydroxy propene?
Tautomers
Properties of isomers?
Different isomers distinctly represent different versions of the same 'Thing'.
What two sugar isomers have in common?
If they're isomers, they by definition have the same molecular formula.
Which compounds have the same molecular formula but different structures?
isomers
If isomers of an alkali have the same molecular formula how do they differ?
Isomers have different physical and chemical properties.
Where can you find information about isomers?
Information about isomers can be found in all chemistry text books. Isomers are compounds which have the same molecular layout but have a different structure.
Are 2-pentanone and 3-pentanone are isomers?
They are metamers but not position isomers
Is it true that atoms with the same number of protons but diffrent numbers of neutrons are called isomers?
Not isomers, Isotopes
Do isomers have the same molecular formula?
Yes.
Can molecules with molecular formulas c4h10 and c4h10o be isomers of one another Why or why not?
No, because the second formula contains an oxygen atom and the first formula does not. Structural isomers must have the same numbers of all types of atoms.
