CHM1C3

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CHM1C3 Introduction to Chemical Reactivity of
Organic Compounds Prof Jon A Preece j.a.preece_at_bh
am.ac.uk www.nanochem.bham.ac.uk Teaching
Resources Username Undergradchem Password
Preece57nano
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Prof Preeces Powerpoint Lecture Presentations
and answers to questions can be found at
Queries on course after reading around the
subject to j.a.preece_at_bham.ac.uk. Be Specific
with the problem(s) in your email. Give me three
times when you are free to see me. I will email
you back with a time to see me.
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Content of Course
Part 1. Resonance and Inductive Effects Part 2.
Organic Acids and Bases Part 3. Nucleophilic
Substitution Reactions at sp3 Carbon Centres Part
4. Elimination Reactions Part 5. Hybridisation
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Part 0 CHM1C3 Some Organic Chemistry Tools
Prof Preece Office 301 E j.a.preece_at_bham.ac.uk
Line formulae Lone pair electrons Bonding pair
electrons Curly arrows
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Revision Line Formula
Primary Carbons
Secondary Carbons
Tertiary Carbons
Quartenary Carbons
Methyl group
Methylene group
Methyne group
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Revision The Line and Electrons
two centre two electron bond
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Revision Lone Pair of Electrons
Lone Pair
Line Formulae
Lewis Formulae
Pairs of bonding electrons in two centre two
electron bonds
Tetrahedral structure sp3 hybridised nitrogene
3D Formulae
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Electrons and Charges Across The Periodic Table
Group 3 (B 2s2 2p1)
Group 5 (N 2s2 2p3)
Group 6 (O 2s2 2p4)
Group 7 (F 2s2 2p5)
Group 4 (C 2s2 2p2)
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How We Represent Structures in Reaction Mechanisms
Group 3 (B 2s2 2p1)
Group 4 (C 2s2 2p2)
Group 5 (N 2s2 2p3)
Group 6 (O 2s2 2p4)
Group 7 (F 2s2 2p5)
-ve charge not a lone pair of electrons
-ve charge a lone pair of electrons
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Reaction Mechanisms And Curly Arrows
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An substitution reaction Lone pair attacks
non-proton atom
VERY IMPORTANT Curly-arrows always starts at
bonding or non-bonding pair of electrons
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An Elimination reaction H and Cl- have been
eliminated from EtCl
VERY IMPORTANT Curly-arrows always starts at
bonding or non-bonding pair of electrons
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An acid-base reaction Lone pair attacks a proton
VERY IMPORTANT Curly-arrows always starts at
lone pair of electrons
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An addition reaction Lone pair attacks a
non-proton atom
Lewis acid
Octet of electrons around sp3 B centre
Sextet of electrons around sp2 B centre
VERY IMPORTANT Curly-arrows always starts at
lone pair of electrons