1. Topic: Functional Grp # 1: Halocarbons
Do Now: Where on the periodic table would you find the Halogens? Name them

2. aka – Alkyl Halides, Organic Halides
One (or more) hydrogen atoms in alkane is replaced with halogen atom
(F, Cl, Br, or I)
propane

3. General Formula halocarbons: R-X
R = hydrocarbon part of molecule
X represents halogen (F, Cl, Br, or I)

5. Properties Adding a halide increases IMF Higher BP/MP
1.516
155
CH3CH2CH2CH2CH2I
1-iodopentane
1.218
130
CH3CH2CH2CH2CH2Br
1-bromopentane
0.882
108
CH3CH2CH2CH2CH2Cl
1-chloropentane
0.791 63
CH3CH2CH2CH2CH2F
1-fluoropentane
0.626 36
CH3CH2CH2CH2CH3
pentane
Density
(g/ml)
Boiling Point
(C)
Adding a halide increases IMF
Higher BP/MP
The larger the halide the stronger the IMF
I>Br>Cl>F

6. Naming figure out backbone name prefixes specify substituent:
fluoro, chloro, bromo, iodo
use di, tri, tetra
if more than one same thing
tell location(s) of halogen(s)
state # C attached to in backbone

7. C3H7F
CH3Cl CH3CHFCH3 H
H–C–Cl  
2-fluoropropane
chloromethane

8. CH3CCl2CHClCH C4H7Cl3
Naming Halides
1,2,2-trichlorobutane

9. If more then one kind of Halogen, name them alphabetically
1st alphabetically gets lowest number
2-chloro-4-fluoro-3-iodobutane

10. Name: Br CH3CH2CHCHCH3 I 3-bromo 2-iodopentane F Cl HCCH
1,1-dichloro-2,2-difluoromethane