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Module Specifications..

Current Academic Year 2023 - 2024

Please note that this information is subject to change.

Module Title Organic Chemistry
Module Code CS204
School School of Chemical Sciences
Module Co-ordinatorSemester 1: Pat O'Malley
Semester 2: Pat O'Malley
Autumn: Pat O'Malley
Module TeachersPat O'Malley
Emma Coyle
Nessan Kerrigan
Hasim Ibrahim
NFQ level 8 Credit Rating 5
Pre-requisite None
Co-requisite None
Compatibles None
Incompatibles None

To develop competence in the use of chemical structures and reaction schemes. To develop chemical intuition. To develop an understanding and familiarity with mechanistic concepts. To develop problem-solving skills. To develop the theoretical and conceptual background for laboratory work. To develop an appreciation of the industrial importance of organic chemistry and of the contribution of organic chemistry to society.

Learning Outcomes

1. Describe the main electrophillic substitution reactions of benzene.
2. Predict the location of disubstitution of aromatic rings.
3. Assign R,S stereochemistry
4. Sketch and explain the more stable conformers of substituted cyclohexane.
5. Distinguish between Nucleophilic substitution reactions SN1 or SN2, and outline the mechanism involved.Similiarly consider Electrophilic substitutions E1, E2.
6. Illustrate mechanisms involved, and products obtained, from reactions addressed on the course, such as Aldol condensation, Claisen condensation.

Workload Full-time hours per semester
Type Hours Description
Lecture36No Description
Independent Study89No Description
Total Workload: 125

All module information is indicative and subject to change. For further information,students are advised to refer to the University's Marks and Standards and Programme Specific Regulations at: http://www.dcu.ie/registry/examinations/index.shtml

Indicative Content and Learning Activities

Review of their chemistry.

Cyclohexane conformational analysis: axial/equatorial positions; chair-chair interconversions; geometrical isomerism and conformational free energies in substituted cyclohexanes; decalins/steroids; hexoses. Chirality: optical activity; polarimetry; centre of chirality; enantiomers; racemates and resolution; several chiral centres; diastereomers; relative and absolute configuration; R- and S- nomenclature; deficiencies of D- and L-nomenclature.

Kinetics and mechanism; transition state; the SN1 and SN2 processes; structural factors; optical isomerism, configuration and mechanism; solvent effects; Similiarly consider Electrophilic Substitutions E1 and E2.

Relative acidities of C-H bonds in differing molecular environments; resonance stabilisation; effect of a second stabilising group; Aldol condensation; Claisen condensation and its variants; ethyl acetoacetate, diethyl malonate and ethyl cyanoacetate; synthetic applications of active methylene compounds.

Benzene structure and electrophilic substitution reactions (nitration, halogenation, sulphonation,alkylation, acylation, metallation).Substituted benzenes: electrophilic substitution reactions of substituted benzene systems; rationalisation of activating and directive effects; survey of the chemistry of substituted benzenes in terms of sources, electrophilic substitution reactions and substituent chemistry - alkylbenzenes; nitrobenzenes; aromatic amines; diazonium salts; phenols; aryl halides (excluding nucleophilic aromatic substitution); aromatic carbonyl compounds.Aromaticity: the Hückel (4n+2) rule; polycyclic aromatics and their chemistry; introduction to annulenes and heteroaromatic systems.

Assessment Breakdown
Continuous Assessment20% Examination Weight80%
Course Work Breakdown
TypeDescription% of totalAssessment Date
Written Examn/a20%n/a
Reassessment Requirement Type
Resit arrangements are explained by the following categories;
1 = A resit is available for all components of the module
2 = No resit is available for 100% continuous assessment module
3 = No resit is available for the continuous assessment component
This module is category 3
Indicative Reading List

  • Brown LeMay, Bursten, Langford,Sagatys,Duffy: 0, Cheistry The Central Science, Pearson,
Other Resources

Programme or List of Programmes
ACBSc in Chemical and Pharmaceutical Sc.
AFUAge Friendly University Programme
AIChemistry with Artificial Intelligence
ASBSc in Analytical Science
BSSAStudy Abroad (DCU Business School)
BSSAOStudy Abroad (DCU Business School)
BTBSc in Biotechnology
GCBBSc in Genetics & Cell Biology
HMSAStudy Abroad (Humanities & Soc Science)
HMSAOStudy Abroad (Humanities & Soc Science)
IESAStudy Abroad (Institute of Education)
IESAOStudy Abroad (Institute of Education)
SEBSc Science Education
SHSAStudy Abroad (Science & Health)
SHSAOStudy Abroad (Science & Health)
Date of Last Revision27-JAN-09

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