Module proposal

UNIVERSITY OF WARWICK

Proposal Form for New or Revised Modules (MA1- version 3)

For consideration by the Undergraduate Studies Committee/Sub-Faculty or Graduate Studies Committee only.

NB: 1. If it is unclear whether or not a change to an existing module should be proposed on this form, the Chair or Secretary of the Undergraduate Studies Committee/Sub-Faculty or Graduate Studies Committee should be consulted.

2. In order to reduce printing costs please delete the text provided as guidance in the body of the form before submission to the Faculty Secretariat. However, all sections must be completed to the satisfaction of the Faculty Undergraduate/Graduate Studies Committee.

1. Title of Module:

CH267 Transition Metal Chemistry: structure, reactivity and organometallic chemistry.

2. New or Revised Module:

New module? [X]

Revised module? []

Level: D (Doctorate) [ ]

M (Masters) [ ]

H (Honours) [X]

I (Intermediate) [ ]

C (Certificate) [ ]

If this new module replaces an existing approved module specify the code and title of the module to be discontinued and date on which change will occur:

Replaces CH245 and CH262, October 2009

If this is a proposal for a revised module, specify which sections have been amended, and give an outline rationale for the changes:

3. Date of Introduction of new module or revised version of existing module:

October 2009

4. Department Responsible for Teaching:

Chemistry

If the module is taught by more than one department please indicate this (for matrix purposes):

Department / %
Department / %

Name of Module Leader:

JP Rourke

If the module leader is not a member of Warwick staff and has not previously been appointed as a module leader/tutor, please include a C.V with this form.

5. Availability/Location of module within courses:

List the degree courses on which this module is available, indicating the year of study, whether the module is core or an option and the credit weighting in each case. Include any part-time or 2+2 degrees on which this module is available.

Degree / Title / Year of / Core / Optional / Option list / CATS*
Code / study / core? / A,B or C
F100 / Chemistry BSc / 2 / Core / 15
F101 / Chemistry BSc with Intercalated year / 2 / Core / 15
F102 / General Chemistry BSc / 2 / Core / 15
F105 / Chemistry MChem / 2 / Core / 15
F106 / Chemistry MChem with Professional Experience / 2 / Core / 15
F107 / Chemistry MChem with Intercalated Year / 2 / Core / 15
F108 / Chemistry MChem with Industrial Training / 2 / Core / 15
F121 / Chemistry with Medicinal Chemistry BSc / 2 / Core / 15
F122 / Chemistry with Medicinal Chemistry BSc with Intercalated Year / 2 / Core / 15
F125 / Chemistry with Medicinal Chemistry MChem / 2 / Core / 15
F126 / Chemistry with Medicinal Chemistry MChem with Professional Experience / 2 / Core / 15
F127 / Chemistry with Medicinal Chemistry MChem with Intercalated Year / 2 / Core / 15
F128 / Chemistry with Medicinal Chemistry MChem with Industrial Training / 2 / Core / 15
F1N1 / Chemistry with Management BSc / 2 / Core / 15
F1N2 / Chemistry with Management BSc with Intercalated Year / 2 / Core / 15
BF91 / Biomedical Chemistry BSc / 2 / Core / 15
B9F1 / Biomedical Chemistry BSc with Intercalated Year / 2 / Core / 15
FC11 / Chemical Biology MChem / 2 / Core / 15
F1C1 / Chemical Biology MChem with Intercalated Year / 2 / Core / 15
Visiting Students / 15

*Credit should be in one of the following tariffs:

6, 12, 18, 24, 48 credits; or

7.5, 15, 30, 45, 60 credits; or

(for postgraduate courses only) 10, 20, 30, 40, 50,60 credits

6. Consultation with other Departments:

It is important that any departments affected by the introduction of this module are consulted before the module is considered by the relevant Faculty committee.

Which other departments will be affected by the introduction/revision of this module (i.e. other departments offering the module as an option in their degree courses, including joint degree courses involving the department proposing the module)? Please give details of any consultations undertaken and indicate whether the other departments have approved the proposal.

N/A

7. Context:

Describe the relationship to any other modules with which the new module has a close connection and any prerequisite relationships.

This module follows on from the transition metal component of Year 1 CH160. The one-electron (orbital) picture is extended to the many-electron (Russell-Saunders) regime for d states in cubic symmetry. Qualitative electric-dipole selection rules for first-row metal complexes. Totally new material on organometallic chemistry is discussed leading to an appreciation of the bonding modes of most ligand types and a brief introduction to their reactivity.

Pre-requisite

CH160

Post-requisites

CH266

CH3A2

CH3A3

8. Module Aims:

These should identify the module’s broad educational purposes. Indicate how the module will contribute to the achievement of the aims of the degree courses on which it is available.

9. Learning Outcomes:

Successful completion of the module leads to the learning outcomes. The learning outcomes identify the knowledge, skills and attributes developed by the module. Learning Outcomes should be presented in the following format using the table below:

By the end of the module students should be able to...

Learning Outcomes should include reference to subject knowledge and understanding, key skills, cognitive skills and subject-specific practical and professional skills and be clearly relevant to fulfilling the educational aims. Learning Outcomes should be measurable by the assessment methods for the module. Indicate how the module will contribute to the achievement of degree course learning objectives.

(a) Subject knowledge and understanding

The knowledge and understanding that a student will be expected to have upon completion, such as : ‘a theoretical knowledge of the principles and methods of archaeology’ or ‘a knowledge of the major types of chemical reaction and the main characteristics associated with them.’

(b) Key Skills

Communication (written, verbal, graphical...)

Numeracy

Use of information technology (e.g. WP, www, databases, spreadsheets, specialist packages)

Ability to learn

Others (e.g. teamwork)

(c) Cognitive Skills

For example: ability in critical analysis; the ability to formulate and test concepts and hypotheses.

(d) Subject-Specific/Professional Skills

For example: laboratory skills; scientific support writing; research skills and methods.

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Module proposal

LEARNING OUTCOMES
(By the end of the module the student should be able to....) / Which teaching and learning methods enable students to achieve this learning outcome? / Which assessment methods will measure the achievement of this learning outcome?
Use group theory to assign a point group to a molecule and understand the key features of the associated character table. / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Understand why d-d repulsion leads to multiple transitions in electronic spectroscopy. / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Understand the thermodynamics of complex formation and how it leads to an appreciation of the kinetics of ligand substitution (as exemplified by associative, interchange and dissociative processes). / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Understand the difference between inner and outer sphere redox reaction, and how to tell them apart. Use the Marcus cross-relation to approximate reaction rates. / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Understand and describe the factors affecting reactivity of s and p block alkyls and aryls.
Explain successes and limitations of synthetic methods. / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Describe the MO basis for understanding the 18e rule
Explain why classical complexes and square-planar organometallics do not follow the 18e rule
Count electrons in organometallic complexes / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Use an MO bonding description to describe the bonding of common ligands to transition metals. Appreciate synthetic methods to make simple complexes. / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor
Understand basic reactivity of TM organometallic complexes, exemplified by ligand substitution, oxidative addition, reductive elimination and migratory insertion reactions. / Lectures, tutorial problems and directed reading. / Unseen exam
Feedback from tutor

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Module proposal

10. Syllabus:

Give an outline of the syllabus for the module.

The module will be divided into a number of different components, as outlined below.

Group theory

Recognition of symmetry elements. Identification of point groups. Elementary uses of character tables such as assigning appropriate symmetry labels to molecular orbitals.

d-d spectroscopy of cubic metal complexes

d-d interelectron repulsion. Microstates and many-electron term symbols for d2. Term symbols for remaining d configurations. Term splittings in cubic symmetry. Qualitative electric-dipole selection rules. Selected examples.

Compound formation: thermodynamic considerations

Stepwise and overall formation constants; extension of concepts developed in CH160

Substitution reations

Classification scheme, A, D, I. Activation parameters and reaction profiles. Solvent exchange rates and relationships to d configurations/spin states/LFSE. Ligand substitution at octahedral complexes – Eigen-Wilkins mechanism and its associated rate law. Ligand substitution at square planar centres. Rate laws. Trans effects and trans influence. Stereospecific synthesis.

Redox reactions

Outer sphere processes and simple Marcus theory. Inner sphere reaction. Diagnostic tests for inner versus outer sphere.

Main group organometallics

Systematic review. Reactivity (source of R- etc). Oxidative addition as applied to Grignard synthesis.

d-Block organometallics – the 18 electron rule

MO diags for octahedral complexes: sigma and pi bonding. Electron counting, co-ordination compounds vs organometallics. Exceptions to the 18 electron rule, including

16 electron square planar complexes.

Bonding of ligands to metal centres.

Carbon monoxide: sigma donation, pi backbonding, effect on IR spectra

Phosphines: bonding and steric effects

Hydrides and dihydrogen: bonding, backbonding and transformation to dihydride. Recognition that is oxidative addition.

Organic molecules as ligands, exemplified through systems such as: h1 bonding with alkyls; h2 with alkenes; h3 with allyls; h4 with cyclobutadiene; h5 with cyclopentadienyl; h6 with benzene

Carbenes: Fischer, Schrock and NHC

Alkanes, agostic hydrogens and noble gases.

Reactions of organometallics

Ligand substitution exemplified by carbonyl replacement, the differences between 16e and 18e complexes (associative vs dissociative substitution). Masked dissociative pathways.

Oxidative Addition and Reductive Elimination.

1,1-Migratory insertion reactions, as exemplified by migration onto carbonyl ligands.

1,2-Insertions and β-hydride elimination. Brief discussion.

11. Illustrative Bibliography:

List the core texts only. The illustrative bibliography should provide an indication of the focus and level of the reading required by this module, rather than the full range (this should not be more than half a page):

Inorganic Chemistry 4ed by Shriver and Atkins (OUP)


12. Teaching:

Give the number of each type of teaching event per week and the length of each session in hours.

Lectures / 30hrs in total
problem classes / 0
Tutorials / 4hrs in total
Laboratory sessions / 0
Total contact hours / 34hrs (total)
Module duration (weeks, if applicable) / 10 weeks
Self Study/Revision / 116 hrs

13. Assessment Methods:

Type of assessment / Length / % weighting
Examinations / 3 hrs / 100%

14. Resources:

Are any resources required for this module which are not already available from the Department’s own baseline resources (e.g. staff costs, accommodation, equipment, minor works, library costs, audio visual and computing facilities, vacation study requirements)? Is the module likely to require high usage of centrally timetabled teaching rooms or specific slots (e.g. for a module on a part time postgraduate course)?

Any additional requirements should be discussed with the appropriate Officer (see list below) before submitting the proposal.

List any additional requirements and indicate the outcome of any discussions.

Signature of Module Leader:

Date

Signature of Chair of Department:

Date

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Exams Office

Assessment Details (information required by the Exams Office)

This form should be completed only for modules to be assessed by an exam organised by the Exams Office

The form does not have to be submitted for approval but should be sent to Andrea Humber in the Exams Office. If this information is not provided the module cannot be set up on the Student Record System and students will therefore be unable to register for the module and exam. If you have any queries about this form please contact Andrea Humber in the Examination Office (ext 74160)

Module Title / Transition metal chemistry: reactions in solution and organometallic chemistry
Department / Chemistry
Module Leader / Dr Jon Rourke
Name of Examiner

Indicate all available methods of assessment in the table below

% Examined / % Assessed by other methods / Length of examination paper
100 / 3hrs

Examination Details

Will this module be examined together with any other module (sectioned paper)? If so please give details.

No

Is the module to be examined by 1 paper [ X]

or 2 papers [ ]

When will the exam take place (e.g. Jan, April, Summer)? Summer ......

Is reading time required? Yes [ ] No [ ]

Give any special exam timetable arrangements

Stationery Requirements

No. of Answer Books
Graph Paper
Calculator

List any other special stationery requirements (e.g. Data books, tables etc):

Type of Paper

Seen: Yes [ ] No [ ]

Open Book : Yes [ ] No [ ]

Restricted: Yes [ ] No [ ]

Where restricted please provide list of texts permitted here:

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