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Introduces the concept of radial distribution as a way of describing the ordering of the atoms or molecules in a liquid. Shows how the function can be determined in practice by X-ray scattering and neutron...
Two of the ways in which excited states can decay involve the emission of light - as fluorescence or phosphorescence. These emissions have practical applications - fluorescence is important in chemical...
A computer colour simulation in which 12 typical 3-dimensional trajectories of protons with constant energy and differing collision parameters during energy interchange with deuterium molecules (slow motion...
Computer-calculated movement phases of the diffusion of molecules in a two-dimensional model gas plasticize Brownian movement, temperature dependent effusion into vacuum, self diffusion of marked particles...
Atomic scattering processes, Lennard-Jones Potential. Equipotential lines, scattering problem, effective potential. Trajectories, scattering angle, deflection function, scattering formula, glory scattering,...
Lecturer Sidney Kettle discusses the more important aspects of symmetry and explains how an appreciation of the symmetry properties of molecules helps to an understanding of their chemistry.
Simple qualitative treatment of simple conjugated and non conjugated molecules.
Illustrates how to draw canonical forms for conjugated molecules and how to infer which are significant canonicals.
Interpretation of covalent bonding in terms of the sharing of pairs of electrons, teaching to the valency shell electron pair repulsion theory of molecular shape.
Variation between ionic and covalent bonding in terms of polarisation of the anion, and in terms of electronegativity difference between the combining atoms.
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