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Home/ Questions/Are the highlighted protons (Ha and Hb) homotopic, enantiotopic or diastereotopic?
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lizawr
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lizawr
Asked: April 11, 20222022-04-11T19:01:54+00:00 2022-04-11T19:01:54+00:00In: Chemistry

Are the highlighted protons (Ha and Hb) homotopic, enantiotopic or diastereotopic?

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Are the highlighted protons (Ha and Hb) homotopic, enantiotopic or diastereotopic?

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Are the highlighted protons(Ha and Hb) homotopic, enantiotopic or diastereotopic? Ph Ls JHO Ho

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♦ Relevant knowledge

Definition of Topicity: A subfield of stereochemistry is a branch of chemistry that is concerned with spatial or three-dimensional orientation of compounds. Within the scope of stereochemistry topicity aims to establish the exact connection between atoms or groups of molecules (substituents) that are attached to the molecule.

Topicity Relationships: The existence of substituents with two or more are classified under four distinct relationships that we’ll look at the next. The four relationships that can be considered are known as homotopic, heterotopic, diastereotopic, enantiotopic and homotopic.

Homotopic Relationships: When two substituents in a compound are similar, they are referred to as homotopic.

diastereotopicenantiotopichomotopic
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    Rhys Jones
    2022-04-11T19:01:57+00:00Added an answer on April 11, 2022 at 7:01 pm

    1st molecule, Ha and Hb are related via the C2 axis. They are therefore enantiotopic in natural systems.

    The diastereotopic hydrogenatoms in the 2nd and 3rd molecules are not related by planes of symmetry or by the C2 axis.

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