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Can the following molecules be called meso compounds (cyclic structures which usually exist in non-planar forms)?

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In the planar form the following molecules have one plane of symmetry.However in the chair-form (the most stable form) for the first molecule and the non-planar form for the second molecule there is no plane of symmetry.Will the molecules still be called meso?

BTW I do not think the molecules ever attain completely planar form.

enter image description here

enter image description here

Just for quick reference I'm adding the non-planar forms of the two molecules.

enter image description here

enter image description here

In the planar form the following molecules have one plane of symmetry.However in the chair-form (the most stable form) for the first molecule and the non-planar form for the second molecule there is no plane of symmetry.Will the molecules still be called meso?

BTW I do not think the molecules ever attain completely planar form.

enter image description here

enter image description here

In the planar form the following molecules have one plane of symmetry.However in the chair-form (the most stable form) for the first molecule and the non-planar form for the second molecule there is no plane of symmetry.Will the molecules still be called meso?

BTW I do not think the molecules ever attain completely planar form.

enter image description here

enter image description here

Just for quick reference I'm adding the non-planar forms of the two molecules.

enter image description here

enter image description here

added 166 characters in body
Source Link
user14857
user14857

Can the following moleculemolecules be called a meso compoundcompounds?

In the planar form the molecule hasfollowing molecules have one plane of symmetry.However in the chair-form (the most stable form) for the first molecule hasand the non-planar form for the second molecule there is no plane of symmetry.Will the moleculemolecules still be called meso?

BTW I do not think the moleculemolecules ever attainsattain completely planar form.

enter image description here

enter image description here

Can the following molecule be called a meso compound?

In the planar form the molecule has one plane of symmetry.However in the chair-form (the most stable form) the molecule has no plane of symmetry.Will the molecule still be called meso?

BTW I do not think the molecule ever attains completely planar form.

enter image description here

Can the following molecules be called meso compounds?

In the planar form the following molecules have one plane of symmetry.However in the chair-form (the most stable form) for the first molecule and the non-planar form for the second molecule there is no plane of symmetry.Will the molecules still be called meso?

BTW I do not think the molecules ever attain completely planar form.

enter image description here

enter image description here

Source Link
user14857
user14857