hybridization

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Page 1: Hybridization

Hybridization

Page 2: Hybridization

When you make sp3 hybrid orbitals all 4 atomic orbitals

become hybridized to yield 4 identical hybrid orbitals.

Sp3 Hybridization in methane

H1s

H1s

H1s

H1s

Page 3: Hybridization

Formation of a single bond (sigma bond)

Each C in ethylene is sp2 hybridized

The first bond forms from the head on

overlap of the sp2 hybrid orbitals

Page 4: Hybridization

Each C in ethylene is sp2 hybridized

The first bond forms from the head on

overlap of the sp2 hybrid orbitals

Formation of a single bond (sigma bond)

Hybrid orbitals that come together in a head

on collision will always form a sigma bond

Page 5: Hybridization

Each C in ethylene is sp2 hybridized

The first bond forms from the head on

overlap of the sp2 hybrid orbitals

Single bonds are

called sigma bonds

Formation of a single bond (sigma bond)

H1s

H1s

H1s

H1s

Single bonds are

called sigma bonds

(σ)

How does the double bond form?

σ bond

Page 6: Hybridization

The second bond is formed from the side-

to-side overlap of the unchanged p orbital

Formation of a double bond (pi bond)

σ bond

Page 7: Hybridization

The second bond is formed from the side-

to-side overlap of the unchanged p orbital

Formation of a double bond (pi bond)

σ bond

Page 8: Hybridization

The second bond is formed from the side-

to-side overlap of the unchanged p orbital

Formation of a double bond (pi bond)

σ bond

Page 9: Hybridization

The second bond is formed from the side-

to-side overlap of the unchanged p orbital

Formation of a double bond (pi bond)

σ bond

Page 10: Hybridization

The second bond is formed from the side-

to-side overlap of the unchanged p orbital

Formation of a double bond (pi bond)

σ bond

Page 11: Hybridization

The second bond is formed from the side-

to-side overlap of the unchanged p orbital

Formation of a double bond (pi bond)

Double bonds occur from the combination

of one sigma bond and one pi bond (π)

σ bond

π bond

π bond

Page 12: Hybridization

When you make sp hybrids, two atomic p orbitals

(Pz and Py) remain unchanged

πThe sp hybrid

orbitals will form

sigma bonds

pz

Sp Hybridization

spsp

The p orbitals

are available

for further π

bonding

σ

sigma bonds

σ

π

Two P orbitals available ���� two pi bonds

���� triple bond can be formed (1 σ and 2 π)