Match the following (a) F and G are (p) Structural isomers (b) F and H are (q) tautomers (c) G a

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Match the following (a) F and G are (p) Structural isomers...

Match the following
(a) $\mathrm{F}$ and $\mathrm{G}$ are
(p) Structural isomers
(b) $\mathrm{F}$ and $\mathrm{H}$ are
(q) tautomers
(c) $\mathrm{G}$ and $\mathrm{H}$ are
(r) geometrical isomers
(d) $\mathrm{E}$ and $\mathrm{F}$ are
(s) diastereomers
(t) chain isomers

Key Concepts

Structural Isomers

Structural isomers, also known as constitutional isomers, are compounds that have the same molecular formula but differ in the connectivity of their atoms. This means that while they share the same types and numbers of atoms, the order in which these atoms are bonded together is different, resulting in distinct physical and chemical properties.

Tautomers

Tautomers are a special kind of structural isomer that exist in dynamic equilibrium with each other. They typically involve the relocation of a proton and a shift in the bonding electrons, leading to a change in the structure. A common example is the keto-enol tautomerism, where the two forms interconvert through the movement of a hydrogen atom.

Geometrical Isomers

Geometrical isomers are a type of stereoisomer that arise due to restricted rotation around a bond, often seen in compounds with double bonds or ring structures. These isomers have the same structural connections but differ in the spatial arrangement of their substituent groups, forming cis and trans configurations.

Diastereomers

Diastereomers are stereoisomers that are not mirror images of each other. Unlike enantiomers, they possess different physical and chemical properties and do not interconvert readily. This difference in spatial arrangement can arise from multiple stereocenters or complex molecular structures.

Chain Isomers

Chain isomers are a subcategory of structural isomers where the differences between compounds are due to variations in the carbon skeleton, such as branching. Despite having the same molecular formula, these isomers differ in the way carbon atoms are connected in the chain, affecting their structure and properties.

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