# Partial bond polarization in Nitromethane.

• Ghost803
In summary, using delta+ and delta-, the bonds in nitromethane can be shown to have varying degrees of polarization. The bond between nitrogen and oxygen is non-polar covalent, while the bonds between carbon and nitrogen, and carbon and oxygen, are polar covalent with the nitrogen atom holding a partial negative charge.
Ghost803

## Homework Statement

Using delta+ and delta-, show the polarization of the bonds in nitromethane.

## Homework Equations

None, he just wrote that on the board. Had to look up the molecule on google. http://en.wikipedia.org/wiki/Nitromethane

## The Attempt at a Solution

I assume the delta + delta - means the partial charges. Nitrogen has electronegativity value roughly .5 above Carbon. Oxygen has electronegativity value roughly .4 above nitrogen.

I would assume then that Nitrogen is partial negative, and the bond between oxygen and nitrogen is non-polar covalent. But it seems odd to me that nitrogen would have a negative partial charge when it is bonded to two atoms more electronegative than it, albeit only by .4

. The bond between carbon and nitrogen appears to be polar covalent, with nitrogen holding a partial negative charge and Carbon holding a partial positive charge. The same holds true for the bonds between Carbon and Oxygen.

## 1. What is partial bond polarization in Nitromethane?

Partial bond polarization in Nitromethane is a phenomenon in which the electrons of the bonds between the atoms in the molecule are not equally shared. This results in a slight shift in the distribution of charge within the molecule, creating partial positive and negative charges on different atoms.

## 2. How does partial bond polarization occur in Nitromethane?

In Nitromethane, the polar nature of the nitro group (NO2) causes the electrons to be pulled more towards the oxygen atoms, creating a partial negative charge on the oxygen atoms and a partial positive charge on the nitrogen atom. This unequal distribution of charge leads to partial bond polarization.

## 3. What is the significance of partial bond polarization in Nitromethane?

Partial bond polarization in Nitromethane can affect the molecule's reactivity and physical properties. It can make the molecule more reactive towards certain reactions and can also influence its ability to dissolve in different solvents.

## 4. How can partial bond polarization be represented in a molecule of Nitromethane?

Partial bond polarization in Nitromethane can be represented by using the partial charge symbols (δ+ and δ-) on the atoms involved in the polar bonds. For example, in Nitromethane, the oxygen atoms would have a δ- symbol, and the nitrogen atom would have a δ+ symbol.

## 5. Can partial bond polarization occur in other molecules besides Nitromethane?

Yes, partial bond polarization can occur in other molecules besides Nitromethane. It is a common phenomenon in molecules with polar bonds, such as those containing electronegative atoms like oxygen, nitrogen, and fluorine.

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