chemical processes
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Continuing the discussion of Lewis structures and chemical forces from the previous lecture, Professor McBride introduces the double-well potential of the ozone molecule and its structural equilibrium. The inability for inverse-square force laws to account for stable arrangements of charged particles is prescribed by Earnshaw's Theorem, which may be visualized by means of lines of force. J.J. Thomson circumvented Earnshaw's prohibition on ...more
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This lecture continues the discussion of the HOMO/LUMO view of chemical reactivity by focusing on ways of recognizing whether a particular HOMO should be unusually high in energy (basic), or a particular LUMO should be unusually low (acidic). The approach is illustrated with BH3, which is both acidic and basic and thus dimerizes by forming unusual "Y" bonds. The low LUMOs that make both HF and CH3F acidic are analyzed and compared underlin...more
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After pointing out several discrepancies between electron difference density results and Lewis bonding theory, the course proceeds to quantum mechanics in search of a fundamental understanding of chemical bonding. The wave function ψ, which beginning students find confusing, was equally confusing to the physicists who created quantum mechanics. The Schrödinger equation reckons kinetic energy through the shape of ψ. When ψ curves toward zer...more
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Andy Friere, Co-founder and CEO of Axialent, describes the customer-focused culture archetype, one of the five basic cultural archetypes into which organizations fall: 1) Achievement, 2) Innovation, 3) One-team, 4) People-first or 5) Customer-focused. Specifically, Friere suggests that customer-focused cultures value flexibility to service customer needs above other potential activities. Friere describes the behaviors, symbols and processe...more
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After discussing the classic determination of the heat of atomization of graphite by Chupka and Inghram, the values of bond dissociation energies, and the utility of average bond energies, the lecture focuses on understanding equilibrium and rate processes through statistical mechanics. The Boltzmann factor favors minimal energy in order to provide the largest number of different arrangements of "bits" of energy. The slippery concept of di...more
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Andy Friere, Co-founder and CEO of Axialent, describes the one-team culture archetype, one of the five basic cultural archetypes into which organizations fall: 1) Achievement, 2) Innovation, 3) One-team, 4) People-first or 5) Customer-focused. Specifically, Friere suggests that one-team cultures trade off the optimization of individual systems or people for the benefit of the entire organization. Friere describes the behaviors, symbols and...more
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Andy Friere, Co-founder and CEO of Axialent, describes the people-first culture archetype, one of the five basic cultural archetypes into which organizations fall: 1) Achievement, 2) Innovation, 3) One team, 4) People-first or 5) Customer-focused. Specifically, Friere suggests that people-first cultures are focused on building and developing organizational members above other potential activities. Friere describes the behaviors, symbols an...more
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Professor Sylvia Ceyer discusses the rates of chemical reactions, factors affecting rates of reactions, measuring reaction rates, and common rate expressions. The discussion then moves to the rate laws and highlights the order of reaction in reactants/products, overall reaction order, units for k, and integrated rate laws (specifically, first order half-life).
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Professor Sylvia Ceyer discusses bond enthalpy and the enthalpy of endothermic/exothermic chemical reactions. The heat of formation is defined as Professor Ceyer explains Hess's Law which is used to predict the enthalpy change and conservation of energy, regardless of the path through which it is to be determined. The lecture concludes with a discussion of thermodynamics and spontaneous chance, specifically Gibbs free energy and the concep...more
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After mentioning some legal implications of chirality, the discussion of configuration concludes using esomeprazole as an example of three general methods for producing single enantiomers. Conformational isomerism is more subtle because isomers differ only by rotation about single bonds, which requires careful physico-chemical consideration of energies and their relation to equilibrium and rate constants. Conformations have their own notat...more
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This lecture will explore the 'celebrification' of contemporary popular culture. In particular how the idea of celebrity is intrinsic to the making and marketing of popular newspapers. We will also examine how the so-called quality press has not remained immune from the lure of the celebrity. And more importantly how broadcasting appears to be reconfiguring our ideas about celebrity. We will analyse in detail particular examples drawn ...more
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Andy Friere, Co-founder and CEO of Axialent, describes the innovation culture archetype, one of the five basic cultural archetypes into which organizations fall: 1) Achievement, 2) Innovation, 3) One-team, 4) People-first or 5) Customer-focused. Specifically, Friere suggests that innovation cultures focus on experimenting and learning from mistakes to create new products and businesses. Friere describes the behaviors, symbols and processes...more
