Aromatic Chemistry Index

Presentation on theme: "Aromatic Chemistry Index"— Presentation transcript:

Aromatic Chemistry

Index

Hydrocarbon basics

Circles

?!

Hydrocarbon basics

Carbon ( C ) &

Hydrogen

( H )

Alkanes

, Alkenes, AlkynesClick for some more basics!Go to the next part!

Some extra information!

Amount of C  *2 +2  Amount of H

Alkane  single bond  stable bond

Hydrocarbon basics: Alkanes

Name of the molecule

Formula

Meth

aneCH4

EthaneC2H6

PropaneC3H8

Buth

ane

C

4

H10PentaneC5H12HexaneC6H14HeptaneC7H16OctaneC8H18NonaneC9H20DecaneC10H22

Ethane (C

2

H

6

)

Alkene

 double bond  less stable bond

For every double bond  -2 H

No

methene

!Name changes depending on where the double bond is!Hydrocarbon basics: Alkenes

Name of the moleculeFormula

EtheneC2H4

PropeneC3H6

Buth

e

ne

C

4H8PenteneC5H10HexeneC6H12HepteneC7H14OcteneC8H16NoneneC9H18Dec

e

ne

C

10

H20

3-octene, double bond is in third place

Hydrocarbon basics: Alkynes

Name of the molecule

Formula

Eth

yne

C2H2

PropyneC3H4

ButhyneC4H

6PentyneC5H

8

Hex

y

ne

C6H10HeptyneC7H12OctyneC8H14NonyneC9H16DecyneC10H18Alkynes  triple bond  the least stable bondFor every triple bond -4 HNo

metyne

!

Name changes depending on where the triple bond is.

3-hexyne, triple bond is in the third place

Circles?!

Theory of

Kekulé

 snake biting its own tail.

Questions

How many carbon atoms are in butane

Which of the following is an alkane?

What is the shape of aromatic molecules?

Why doesn’t

methene exist?Which of the following is the formula of benzene?How many types of bonds does the benzene have?Who discovered the structure of benzene.