# Simple elementary question chiral molecule

• Chemistry
• jonjacson
Ultimately, determining a molecule's chirality requires looking at its overall structure and considering all possible stereoisomers. In summary, to determine if a molecule is chiral or not, you need to identify the stereocenter(s) and consider the overall structure and all possible stereoisomers.
jonjacson

## Homework Statement

Find if a molecule is chiral or not. It is 2-chloropentane

## Homework Equations

IF the mirror image is superimposable to the molecule it is not chiral.

## The Attempt at a Solution

Well I wrote the structural formula in 2D and I thought it was not chiral.(bottom )
But the book wrote a 3d image and concluded it is chiral.(top part of the image)
How can I know, a priori, that the molecule is not in a plane?

http://imgur.com/a/32omH

The chiral carbon in this example is an sp3 carbon, which means that it adopts a tetrahedral geometry (so it's nonplanar). For simple chiral molecules like this, you can usually identify the stereocarbon as the carbon with 4 different substituents bonded to it. This doesn't always work: some chiral molecules are axially chiral rather than chiral at a single carbon (see the helicenes for an example), and some compounds may have multiple stereocenters arranged in a way that makes the overall compound achiral (see meso compounds for an example).

jonjacson

## 1. What is a chiral molecule?

A chiral molecule is a molecule that is not superimposable on its mirror image. This means that the molecule exists in two non-superimposable forms, known as enantiomers.

## 2. How do you determine if a molecule is chiral or not?

A molecule is chiral if it contains at least one carbon atom that is bonded to four different groups. This is known as a chiral center. If a molecule does not have a chiral center, it is not chiral.

## 3. Why is chirality important in chemistry?

Chirality is important in chemistry because chiral molecules have different physical and chemical properties from their mirror images. This can have significant impacts on biological processes, drug effectiveness, and chemical reactions.

## 4. What is the difference between a chiral molecule and an achiral molecule?

The main difference between a chiral and an achiral molecule is that chiral molecules have a mirror image that cannot be superimposed, while achiral molecules have a mirror image that can be superimposed. Additionally, chiral molecules exhibit optical activity, while achiral molecules do not.

## 5. How do chiral molecules affect drug effectiveness?

Chiral molecules can have different effects on the body depending on their orientation. For example, one enantiomer of a drug may be effective while the other enantiomer may have no effect or even negative side effects. This is why it is important for pharmaceutical companies to produce drugs in their desired chiral form.

• General Math
Replies
1
Views
1K
• Biology and Chemistry Homework Help
Replies
1
Views
5K
• Biology and Chemistry Homework Help
Replies
6
Views
2K
• Biology and Chemistry Homework Help
Replies
3
Views
3K
• Chemistry
Replies
2
Views
2K
• Biology and Medical
Replies
10
Views
5K
• Biology and Chemistry Homework Help
Replies
6
Views
4K
• Biology and Chemistry Homework Help
Replies
3
Views
1K
• Biology and Chemistry Homework Help
Replies
1
Views
7K
• Biology and Chemistry Homework Help
Replies
4
Views
2K