Please answer the problem in the photo and explain the answers thoroughly. Thank you. In x-ray studies of crystalline peptides, Linus Pauling and Robert Corey found that the C-N bond in the peptide link is intermediate in length (1.32 Å) between a typical C-N singlebond (1.49 Å) and a C=N double bond (1.27 Å). They also found that the peptide bond isplanar (all four atoms attached to the C-N group are located in the same plane) and that thetwo a- carbon atoms attached to the C-N are always trans to each other (on opposite sidesof the peptide bond):H)(a) What does the length of the C-N bond in the peptide linkage indicate about itsstrength and its bond order (i.e., whether it is single, double, or triple)?(b) What do the observations of Pauling and Corey tell us about the ease of rotationabout the C-N peptide bond?

Peptide bond is a type of amide linkage which is found in polypeptides. It is formed by condensation…

What does the length of the C-N bond in the peptide linkage indicate about its strength and its bond order (i.e., whether it is single, double, or triple)? What do the observations of Pauling and Corey tell us about the ease of rotation about the C-N peptide bond?

What does the length of the C-N bond in the peptide linkage indicate about its strength and its bond order (i.e., whether it is single, double, or triple)? What do the observations of Pauling and Corey tell us about the ease of rotation about the C-N peptide bond?

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question

Please answer the problem in the photo and explain the answers thoroughly. Thank you.

In x-ray studies of crystalline peptides, Linus Pauling and Robert Corey found that the C-
N bond in the peptide link is intermediate in length (1.32 Å) between a typical C-N single
bond (1.49 Å) and a C=N double bond (1.27 Å). They also found that the peptide bond is
planar (all four atoms attached to the C-N group are located in the same plane) and that the
two a- carbon atoms attached to the C-N are always trans to each other (on opposite sides
of the peptide bond):
H)
(a) What does the length of the C-N bond in the peptide linkage indicate about its
strength and its bond order (i.e., whether it is single, double, or triple)?
(b) What do the observations of Pauling and Corey tell us about the ease of rotation
about the C-N peptide bond?

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