Practical Work:
Physical: All physical chemistry laboratory work is combined with theory units for the purposes of examination.
Organic: Satisfactory performance in practical units is required before credit for theory units can be given. Two practical units 335 and 336 are offered. Students enrolled for 9 or more theory points in Organic Chem- istry are required to enrol for 335. Students enrolled for from 3-8 theory points in Organic Chemistry are required to enrol for 335 or 336. Students enrolled for less than 3 points need take no practical work.
Inorganic: Three separate practical units, 357, 358 and 359 are offered.
Students enrolled for 9 or more theory points in Inorganic Chemistry must enrol for 357. Students enrolled for from 4 to 8 Inorganic theory points must enrol for 358 (or 357). Students enrolled in 348 must enrol for 359. Satisfactory performance in practical units is required before credit for theory units can be given. Students enrolled for only 2 points worth of Inorganic theory units are not required to undertake Inorganic practical work.
Chemical Research Project: This 6 point unit includes about 90 hours of laboratory work, and is compulsory for all students majoring only in Chemistry.
EXAMINATIONS Units may be examined at fixed times throughout the year, and in the examination term at the end of the year.
PREREQUISITES Prerequisite studies have been specified for certain units and such preparation is to be generally regarded as essential.
Atomic and molecular spectroscopy.
NMR and EPR spectroscopy.
EXAMINATION One 3-hour paper, two assignments; practical reports.
302 GAS PHASE CHEMISTRY Dr R. Cooper
2 points; 8 lectures and 12 hours practical; prerequisite 201.
Methods of production and detection of free radicals.
Simple reactions—abstraction, addition, insertion, disproportionation, combination—of free radicals.
Unimolecular reactions: experimental observation, first order-second order transition, Lindemann Theory, application of statistical mechanics to theory of unimolecular reactions. Simple presentation of НКRR theory.
Photochemistry: quantum yields, fates of electronically excited molecules
— quenching, fluorescence, 1SC, etc., energy transfer, photosensitisation.
Flash photolysis—atom and radical combination reactions—energy trans- fer—bound complex mechanisms. Application of statistical mechanics to atom-atom and radical-radical recombination reactions. Comparison with simple collision theory. Molecular dynamics: molecular beam kinetics
— energy distribution in products. Trajectory calculations.
Chain oxidations: branched chains as typified by 12 /02 system. Explo- sion boundaries. Hydrocarbon oxidation. Ozone formation and effects of pollutants on formation reaction.
EXAMINATION One 1-hour paper; one assignment; practical reports.
303 LIQUID AND SOLUTION CHEMISTRY Dr P. T. McTigue
2 points; 10 lectures and 6 hours practical; prerequisite 201.
Experimental studies of structure of liquids; general comparison of solid and liquid properties; X-ray diffraction studies; radical distribution func- tions for both simple and associated liquids; IR and Raman studies of associated liquids; the problem of the partition function for a liquid;
simple approximations and the free volume of a liquid; more sophisticated theories—cell and hole models for non-associating liquids; mixture models for water. Kinetic effects in liquids: rotation of molecules in liquids; dielectric relaxation, NMR, ultrasonics; translation of molecules in liquids—self-diffusion, viscosity; qualitative modification of theories of liquid structure to include molecular motion. Liquid crystals as a case intermediate between liquids and solids. Properties of solutions: thermo- dynamics of solution of non-polar molecules in various solvents, including water. Extension to "hydrophobic bonding" and Interpretation in terms of mixture model; thermodynamics of solution of ions in polar solvents.
Electrochemical methods and thermodynamic cycles; structural effects of ions in water; viscosities of electrolyte solution. Structure makers and structure breakers; spectroscopic studies of ion salvation; NMR, IR, UV.
EXAMINATION One 1-hour paper; one assignment; practical reports.
304 SOLID STATE AND SURFACE CHEMISTRY
2 points; 8 lectures and 12 hours practical; prerequisite 201.
Nucleation, growth and purification of crystals.
Solid State effects; diffusion in solids.
Band theory and electronic structure of solids.
Photography—application of solid state principles.
Catalysis on solid surfaces.
EXAMINATION One one-hour paper; one assignment; practical reports.
305 ADVANCED PHYSICAL CHEMISTRY'
4 points; 20 lectures and 12 hours practical; prerequisites 201, 301.
Quantum mechanics (matrix formulation, perturbation, introduction to time dependent quantum mechanics).
Radiation/matter Interaction (semi-classical theory); photochemistry.
Fourier transform spectroscopy (NMR, IR); correlation functions.
Intermolecular forces—quantum and continium models.
EXAMINATION One 2-hour paper; two assignments.
306 VALENCE THEORY
(2 points) 12 lectures; prerequisites 201, 301
Types of wave-functions and energy calculations for He, W, and Ha. Born and Oppenheimer approximation. Ruedenberg theory of covalent bond- ing. Hйckel molecular orbital theory for г-e1eccгoп systems. Antisymmet- rized product wave-functions. Elements of valence-bond theory for elec- tron-excess polyatomic molecules. The Pauling 'three-electron bond and its incorporation into valence formulae for diamagnetic and paramagnetic polyatomic molecules. Elements of Mulliken theory of charge-transfer complexes. Some transformations of non•localized molecular orbitals Into localized molecular orbitals.
Attention is drawn to the existence of unit 371 in the B.Sc. (Ed.) Details of Subjects. 371 is a unit similar ta 306, but not having 301 as a pre- requisite. It is not possible to hold simultaneous credit for 371 and 306.
otherwise 371 can be substituted for 306.
EXAMINATION One 1%-hour written paper; 3 assignments.
307 SURFACE CHEMISTRY Dr T. W. Healy
(2 points) 8 lectures; 12 hours of practical work; prerequisites 201, 301 or 370
Thermodynamics of surfaces, properties of curved surface, nucleation.
Surface tension and adsorption in multicomponent systems, surfactant solutions.
The solid-gas interface, adsorption, surface areas, surface structure.
Electrical double layers at interfaces, ion adsorption, coagulation of colloids.
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EXAMINATION One 1-hour written paper; one assignment; practical reports.