Molecular polarity

Post on 23-Jun-2015

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An introduction to the value of molecular polarity and how bond polarity and molecular shape determine molecular polarity.

Transcript of Molecular polarity

Molecular structure

Molecular polarity

Bonds:

Non-polar

Polar

Bonds:Molecules:

Non-polar Non-polar

Polar Polar

Bond(s): Molecule:

intermolecular bond

intramolecular bonds

intramolecular bonds

intramolecular bonds

+

+

+ +

+

+

+

+

+

+ +

+intramolecular

bonds+

+

+ +

+

- -

- ---- -

intermolecular bond

intermolecular bond

intramolecular bonds

intermolecular bond

intramolecular bonds

- -

intermolecular bond

intramolecular bonds

- -

intermolecular bond

intramolecular bonds

- -

intermolecular bond

intermolecular bond

Bonds:

Non-polar

Polar

EN = 3,5

EN = 2,2 EN = 2,2

EN = 3,5

EN = 2,2 EN = 2,2

EN = 3,5

END = 3,5 - 2,2 = 1,3 (polar bond)

EN = 2,2 EN = 2,2

EN = 3,5

END = 3,5 - 2,2 = 1,3 (polar bond)

EN = 2,2 EN = 2,2

1 > 2,1polar

covalent

EN = 3,5

END = 3,5 - 2,2 = 1,3 (polar bond)

EN = 2,2 EN = 2,2

Bond(s): Molecule:

Non-polar Non-polar

Polar Polar

C OO

C OOEN = 3,5 EN = 2,5 EN = 3,5

C OOEN = 3,5

END = 3,5 - 2,5 = 1 (polar bond)

EN = 2,5 EN = 3,5

C OOEN = 3,5

END = 3,5 - 2,5 = 1 (polar bond)

EN = 2,5 EN = 3,5

C OOEND = 3,5 - 2,5 = 1 (polar bond)

C OOEND = 3,5 - 2,5 = 1 (polar bond)

Bond(s): Molecule:

Non-polar Non-polar

Polar

C OO

C OO

Bond(s): Molecule:

Non-polar Non-polar

Polar Polar

Bond(s): Molecule:

Non-polar Non-polar

Polar PolarSymmetrical

Bond(s): Molecule:

Non-polar Non-polar

Polar PolarSymmetrical

Asymmetrical

Bond(s): Molecule:

Non-polar Non-polar

Polar PolarSymmetrical

Asymmetrical

Bond(s): Molecule:

Non-polar Non-polar

Polar PolarSymmetrical

Asymmetrical

Bond(s): Molecule:

Non-polar Non-polar

Polar PolarSymmetrical

Asymmetrical

Bond(s): Molecule:

Non-polar Non-polar

Polar PolarSymmetrical

Asymmetrical