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Why are there different Newman projections for one molecule in organic chemistry?

Answer 1

Due to the presence of bulky groups and the repulsions caused the energy of the molecule in such conformations are highest while compared to the other conformations.
Similarly we have staggered conformation in which the bulky groups are far away in such a way that the molecule's energy is least and hence it is stable.
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example:
Proteins are macromolecules.We define dihedral angle ie. the angle between two planes. At a particular conformation the proteins exhibhit catalytic activity.

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Answer 2

Skylar Alexander

Newman projections represent different orientations of the same molecule in three-dimensional space. They allow chemists to visualize the spatial arrangement of atoms in a molecule, particularly around a specific bond. Different Newman projections for the same molecule occur because the molecule can rotate around its bonds, leading to different orientations of the atoms.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.