3.3.1

Properties of Haloalkanes

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Halogenoalkanes

A halogenoalkane is a halogenated alkane. This means that one (or more) of the hydrogen atoms in an alkane has been replaced by a halogen atom.

Names of halogenoalkanes

Names of halogenoalkanes

  • The names of halogenoalkanes use the halogen names at the start.
    • E.g. Fluoromethane.
    • E.g. Chloromethane.
    • E.g. Bromomethane.
    • E.g. Iodomethane.
Properties of halogenoalkanes

Properties of halogenoalkanes

  • Halogenoalkanes are polar molecules and contain polar bonds.
  • The polar bonds are important in their reactions.
  • Because halogens are more electronegative than carbon, the carbon atoms carry a partial positive charge and the halogen atoms carry a partial negative charge.
  • Halogenoalkanes undergo substitution reactions with ammonia, hydroxide ions, and cyanide ions.
Nucleophiles and electrophiles

Nucleophiles and electrophiles

  • A nucleophile is a molecule that is attracted to a nucleus.
    • Nuclei have positive charges, so nucleophiles tend to be negatively charged.
    • Molecules with lone pairs are also nucleophilic.
  • An electrophile is a molecule that is attracted to a pair of electrons.
    • Electrons have negative charges, so electrophiles tend to be positively charged.
Jump to other topics
1

Physical Chemistry

1.1

Atoms, Molecules & Stoichiometry

1.2

Atomic Structure

1.3

Chemical Bonding

1.4

States of Matter

1.5

Chemical Energetics

1.6

Electrochemistry

1.7

Equilibria

1.8

Partition Coefficient

1.9

Reaction Kinetics

2

Inorganic Chemistry

3

Organic Chemistry & Analysis

3.1

Introduction to Organic Chemistry

3.2

Hydrocarbons

3.3

Halogen Derivatives

3.4

Hydroxy Compounds

3.5

Carbonyl Compounds

3.6

Carboxylic Acids & Derivatives

3.7

Nitrogen Compounds

3.8

Polymerisation

3.9

Analytical Techniques

3.10

Organic Synthesis

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