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Biochemistry
Chemical Bonding

Why peptide bond is rigid and planar?


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2009-01-13 07:56:07
2009-01-13 07:56:07

rigid because of the resonance stabilization of the amide (peptide) bond and the C=O (C double bond O) cause the structure to be planar and is therefore incapable of rotation.

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resonance (bond delocalization) I believe.

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It is due to sp2 hybridization and planar structure of carbonyl carbon.

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due to restriction caused by rotation around alpha c - n bond

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due to delocalization of the lone pair of electrons of the nitrogen onto carbonyl oxygen

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Yes, a peptide bond is a covalent bond.


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